Different sources of vitamin D for feeding caged hens
Different strategies for foliar applications of calcium in plums (Prunus domestica L.)
Different systems of growing coffee in the district of Huila
Different systems of judging the cows' milking characters in the selection of breeding animals.
Different times of application of calcium nitrate to winter wheat and rye
Different times of application of nitrate of Mme to winter-sown crops.
Different times of feeding with succulent feeds for pigs.
Different types of antimetabolite action
Different types of bud in apple and cherry trees in relation to their origin.
Different types of carotenoid abnormalities in albino leaves
Different types of haemoglobin in two strains of mice
Different types of internal structure of forelimb muscles of cattle and peculiarities of their chemical composition
Different types of one-year Scots Pine seedlings: their growth and survival in the second year after planting.
Different types of pear buds in relation to their origin.
Different weed densities and control methods of organic corn production components
Differentia clinical diagnosis of chronic bovine mastitis.
Differentiaal-diag-nose van leveren maagdistomatose. Over de mogelijkheid en her belang van de differentiaal-diagnose van leveren maagdistomatose bij herkauwers aan de hand van de in de mest uitgescheiden eieren
Differential Amounts of Material taken up by four Biotypes of Corn Leaf Aphids from resistant and susceptible Sorghums
Differential Effects of Temperature, Humidity and Population Density upon some ecological Characters of the two Phases.
Differential Reactions of two Biotypes of the Corn Leaf Aphid to resistant and susceptible Varieties, Hybrids and Selections of Sorghums
Differential ability of two soybean varieties to take up Fe59 from soil added to a nutrient solution
Differential absorption of 14C-labelled atrazine and simazine by the upper and lower surfaces of raspberry leaves
Differential absorption of chelate components by soybean roots
Differential absorption of metal chelate components by plant roots
Differential absorption of plant sterols in the dog
Differential absorption of vegetable and animal fat tested by chylomicrography in the infant. Preliminary communication
Differential absorption of vegetable and animal fat tested by chylomicrography in the infant. Preliminary communication.
Differential accumulation of I131 from local fallout in people and milk
Differential anatomical characters of roots of some quince clones
Differential application of fertilizers to wheat in relation to the variety grown
Differential availability of micronutrients in the soil following chelate applications
Differential behavior of wheat chromosomes in monosomics: their transmission and radiosensitivity
Differential behaviour in yield of American and Desi cotton varieties in Malwa tract to treatment with several plant hormones
Differential behaviour of chromosomes in Scilla
Differential cation and anion absorption as affected by climate
Differential characters in Richared, Stark Delicious and Starking
Differential characters of larvae and pupae of C. nymphaea and C. nymphagoga.
Differential chiasma frequencies in self-pollinating and cross-pollinating species of the genus Gilia
Differential condensation of chromosomes in Acroclinium
Differential corrosion of metals by seed treatment fungicides
Differential corrosion of metals by seed-treatment fungicides
Differential counts of glycogen-free and glycogen-laden ova in rat ovaries during estrous cycle, pregnancy and lactation
Differential cytokine gene expression in CD4+ and CD8+ T cell subsets of calves
Differential development of the loin muscles in swine as affected by ad libitum and restricted food intake
Differential diagnosis and control of respiratory diseases of poultry
Differential diagnosis and prognosis of toxoplasmosis and nervous distemper by paper electrophoresis
Differential diagnosis and treat-ment of some forms of rickets-like disorders in children.
Differential diagnosis and treatment of the distemper syndrome in dogs
Differential diagnosis between primary internal breakdown of apples and that caused by freezing. Proposal of a new method
Differential diagnosis of Bacillus cereus, Bacillus anthracis, and Bacillus cereus var. mycoides
Differential diagnosis of Clostridium septicum and Clostridium chauvoei.
Differential diagnosis of Haemonchus contortus and H. placei.
Differential diagnosis of agalactia in sows by testing the pH of the milk
Differential diagnosis of agents of microsporosis
Differential diagnosis of bovine virus diseases
Differential diagnosis of calcified Miescher's tubes and Trichinella
Differential diagnosis of candidiasis and aspergillosis
Differential diagnosis of causative agents of microsporia
Differential diagnosis of clonorchiasis, metagonimiasis and opisthor chiasis by the morphology of the eggs.
Differential diagnosis of diseases of the central nervous system in pigs. III. Simultaneous infection with Erysipelothrix monocytogenes and Shope-type influenza virus in pigs and wild rats.
Differential diagnosis of focal nodular affections in the liver of pigs.
Differential diagnosis of focal, sub-serous atypical reactions of lymphatic tissue in liver and lungs of sheep.
Differential diagnosis of foot and mouth disease.
Differential diagnosis of non-specific tuberculin reactions.
Differential diagnosis of the Candida fungi
Differential diagnosis of the early stages of dictyocauliasis from other lungworm infections of sheep.
Differential diagnosis of the larvae of Parafilaria, Setaria and Onchocerca.
Differential diagnosis of visceral leishmaniasis, progressive disseminated histoplasmosis and penicilliosis marneffei
Differential diagnostic studies on deficiency diseases and parasitic damage to cereal leaves
Differential disease development as a measure of entrance and movement of a fungicide within Cucumber seedlings
Differential disease development as a measure of entrance and movement of a fungicide within cucumber seedlings
Differential effect of dietary fat and weight reduction on serum levels of beta-lipoproteins
Differential effect of dilute alkali on 25 varieties of milled white rice
Differential effect of hog gastric mucin on properdin and host resistance to infection
Differential effects of root-infecting mycelia on young trees in different environments
Differential effects of 2,3,6-trichlorobenzoic acid on growth and geotropic curvature of Avena coleoptiles
Differential effects of chemicals on euchromatin and heterochromatin
Differential effects of fasting and protein-free diets on levels of urea cycle enzymes in rat liver
Differential effects of maleic hydrazide on the growth of leaf and stem rusts of Wheat
Differential effects of maleic hydrazide on the growth of leaf and stem rusts of wheat
Differential effects of osmotic pressure and of suramin upon cultures of Trypanosoma congolense and T. rhodesiense
Differential effects of permanent hypothalamic lesions on reproduction and lactation in rats
Differential effects of price increases on small and big cultivators - a case study
Differential effects of radiation injury upon the nucleus and the cytoplasm as a result of their functional specificity.
Differential effects of root-infecting mycelia on young trees in different environments
Differential effects of sex and genetics on behavior and stress response of turkeys
Differential embryo infection of Wheat by Ustilago tritici
Differential excretion of cobalt-containing products following administration of Co60-labelled vitamin B12 to rats
Differential expression of 3 beta -hydroxysteroid dehydrogenase mRNA in rat testes exposed to endocrine disruptors
Differential expression of potash deficiency symptoms in alfalfa varieties
Differential feeding of Culex tarsalis on nestling and adult birds
Differential fertilization in the inheritance of stem rust resistance in hybrids involving a common Wheat strain derived from Triticum timopheevi
Differential fertilization in the inheritance of stem rust resistance in hybrids involving a common wheat strain derived from Triticum timopheevi
Differential fertilization involving the Y1 and Su2 loci on chromosome 6 in maize
Differential fluorescence in living rat eggs treated with acridine orange
Differential frost resistance within one Eucalyptus species
Differential gene expression profiles analysis of tea plant induced by tea looper (Ectropic oblique) attack using DDRT-PCR
Differential gene flow: a criterion for introgression
Differential geography of cultivated plants in the works of N. I. Vavilov
Differential grazing and the production of nutrients
Differential grazing preferences for certain strains of weeping lovegrass
Differential growth and carcass characteristics in the Giza rabbit
Differential growth and carcass characteristics in the Giza rabbit.
Differential growth of Ostertagia spp. in the sheep's abomasum
Differential growth rate of young progeny of individual slash pine trees
Differential growth-inhibitors produced by plants
Differential host and serological relationships of Potato virus M, Potato virus S, and Carnation latent virus
Differential host range of the mono-caryon and the dicaryons of a eu-autoecious rust
Differential host range of the monocaryon and the dicaryons of a eu-autoecious rust
Differential hosts and new host records for five grass viruses
Differential impact of weight and height on Wetzel developmental age
Differential incidence of loose smut among seed-size classes within Barley seedlots
Differential inheritance in crosses involving three phenotypically similar wheat varieties with Redman monosomics
Differential injury to foliage of wheat, barley and wild oats caused by volatility of 2,3-dichloroallyl diisopropylthiolcarbamate (Avadex) from different types of treated soil in a closed chamber
Differential injury to sugarcane by grasshoppers Gastrimarcus marmoratusThu
Differential insecticide damage in maize varieties
Differential land rent in co-operative farms, from the standpoint of the uniform price system
Differential land rent on co-operative farms as seen from the standpoint of the uniform price system.
Differential longevity of teliospores of pathogenic races of Tilletia caries and T. foetida
Differential loss of dry matter in the laboratory grinding of dried herbage samples
Differential method of scab control.
Differential mitosis of cotton microspores.
Differential mitotic response of diploid and polyploid nuclei to auxin and kinetin treatment
Differential non-genetic variability in the expression of major genes and polygenes
Differential nutritional requirements for reproduction of two strains of Caenorhabditis elegans in axenic culture
Differential pairing behaviour of meiotic chromosomes within the ear of an X-ray induced barley mutant with a reciprocal translocation in the heterozygous condition
Differential pathogenicity in the tropical corn rust pathogens
Differential penetrability of nematodes
Differential periodicity among clones of cacao
Differential permeability of the rabbit placenta to various sugars
Differential photosynthetic and respiratory responses in Eastern White Pine of various geographic origins
Differential pollen and egg transmission of the alleles at the ae locus on chromosome 5 in maize
Differential population levels of the European Pine shoot moth, Rhyacionia buoliana, between Europe and North America
Differential population levels of the European pine shoot moth, Rhyacionia buoliuna, between Europe and North America
Differential post-ripening effects among seeds from the same parental wheat spike
Differential potash fertilizing and its effects on the soil.
Differential protein pattern in serum and oedema fluid in patients with various causes of oedema
Differential radio-sensitivity among the different varieties of bread wheats
Differential radiosensitivity among the probable genome donors of bread wheat
Differential radiosensitivity in rice (Oryza sativa Linn.) at the genotypic level
Differential rate in BNA synthesis between euchromatin and heterochromatin
Differential rate of swelling as an indication of qualitative differences in bean seeds.
Differential rates of development of heterotic and non-heterotic young maize seedlings. I. Use of gamma plantlets in the demonstration of differential mitotic rates
Differential rates of meiotic development in desynaptic Hordeum vulgare
Differential reaction of Potato hosts to foreign and domestic Potato physiologic races of Phytophthora infestans
Differential reaction of milled white rice varieties to a Millon reagent containing trichloroacetic acid and mercuric acetate
Differential reaction of saprophytic and parasitic soil-inhabiting fungi to indoleacetic acid
Differential reaction of stocks of the same long-time inbred line of Zea mays to Helminthosporium turcicum
Differential reaction of tomato chromosomes with hydroxylamine
Differential reaction of two varieties of sorghum to colchicine treatment
Differential reactions of alfalfa varieties and selections to the pea aphid
Differential reactions of alfalfa, varieties and selections to the pea aphid
Differential rejection of salmon lice by pink and chum salmon: disease consequences and expression of proinflammatory genes
Differential removal of strontium 85 and calcium 45 from rat skeleton by peritoneal lavage
Differential rent and economic land evaluation
Differential rent and economics of collective farms
Differential rent in agricultural production co-operatives
Differential rent in socialism
Differential rent under socialism and price formation of farm products
Differential resistance in vitro of human, bovine and avian type tubercle bacilli, to disinfectants
Differential resistance of corn rootworms to insecticides in Nebraska and adjoining States
Differential resistance of dent corn strains to the leaf aphid, Rhopalosiphum maidis (Fitch), in Ohio
Differential resistance of two species of Eucalyptus to toxic soil manganese levels
Differential resistance of two species of eucalyptus to toxic soil manganese levels
Differential response of Coriander strains to stem-gall disease
Differential response of DNA of fresh and stored bovine spermatozoa to Feulgen (HCl) hydrolysis
Differential response of Heterodera schachtii, the sugar beet nematode, to selections of Chenopodium album
Differential response of Heterodera schachtii, the sugar-beet nematode, to selections of Chenopodium album
Differential response of a double mutant-adenineless, inositolless- in Neurospora crassa to combined treatment by ultra-violet radiation and chemicals
Differential response of alfalfa clones to variant forms of Corynebacterium insidiosum
Differential response of alfalfa to Al toxicity
Differential response of castorbean varieties to European corn borer infestation
Differential response of certain barley and wheat varieties to hardening and freezing during sprouting
Differential response of certain varieties of wheat to varying rates of seeding
Differential response of coriander strains to stem-gall disease
Differential response of coriander strains to stemgall disease
Differential response of corn hybrids to shade
Differential response of dwarf bunt to seed and soil surface treatment with hexachlorobenzene
Differential response of five corn varieties to varying fertility levels in the Georgia Piedmont
Differential response of linseed varieties to various doses of nitrogen and phosphate and their method of application
Differential response of rice varieties to manuring
Differential response of rice varieties to some agronomic factors
Differential response of several in-breds and single crosses of corn (Zea mays) to 2,4-dichlorophenoxy-acetic acid
Differential response of several inbreds and single crosses of corn (Zea mays) to 2,4-dichlorophenoxyacetic acid
Differential response of some tropical soils to additions of organic matter
Differential response to calcium within the species Festuca ovina L
Differential response to mutagens in Arabidopsis thaliana
Differential response to potash application in the sweet potato (Ipomoea batatas)
Differential responses of grasses and legumes to liming and phosphorus fertilization
Differential responses of three species of the annual grassland type to plant competition and mineral nutrition
Differential responses of two barley genotypes to chloramphenicol
Differential responses to clipping of six prairie grasses in Wisconsin
Differential responses to population pressures by normal and dwarf lines of maize
Differential responsiveness of A and C3H mouse mammary tissues to somato-tropin-containing hormone combinations
Differential rhizosphere effects of three Pea cultivare on physiologic races of Fusarium oxysporum f. pisi
Differential rhizosphere effects of three pea cultivara on physiologic races of Fusarium uxysporum f. pisi
Differential rhizosphere effects of three pea cultivars on physiologic races of Fusarium oxysporum f. pisi
Differential salt tolerance of sugarcane genotypes
Differential scanning calorimetry and dinamic mechanical analysis of phenol-resorcinol-formaldehyde resins
Differential sensitivity of the cell cycle
Differential sensitivity to X-ray irradiation of male and female day-old chicks
Differential sensitivity to biphenyl among strains of
Differential sensitivity to biphenyl among strains of Penicillium digitatum Sacc
Differential sensitivity to gamma irradiation of Lilium varieties
Differential sensitivity to sodium ortho-phenylphenate by biphenyl-sensitive and bi-phenyl-resistant strains of Penicillium digitatum
Differential serum protein levels in filariasis and tropical eosinophilia
Differential serum vitamin B12 concentrations in mothers and infants
Differential sorption of fumigant formulations by wheat and relative toxicity to adult rice weevil, Sitophilus sasakii
Differential specificity exhibited by two germination inhibitors present in Echium plantagineum L
Differential spray retention and the selective action of herbicides
Differential stain of some fungi with aldehyde fuchsin
Differential staining of live and dead sperm in fresh or diluted semen and the results
Differential staining of spermatozoa
Differential staining of the chromosomes of the first meiotic metaphase of C. debile
Differential survival of cultivars of Lolium, Dactylis and Phleum
Differential susceptibility of maggots of several species to droppings from chickens fed insecticide-treated rations
Differential susceptibility of maggots of several species to droppings from chickens fed insecticidetreated rations
Differential susceptibility of the individual variety groups
Differential synthesis of ribonucleic acid and sexual differentiation in Allomyces
Differential thermal analysis of milk fat
Differential thermal analysis of organic compounds
Differential thermal analysis of the alluvial clay of Egypt
Differential thermal and thermo-gravimetric study of organic material.
Differential thermal characteristics of peat
Differential thermograms of selected organic acids and derivatives
Differential toxicity of insecticides to the cabbage aphid and two associated entomophagous insect species
Differential transmission of Peach yellow leaf roll virus to Peach and Celery by the leafhopper, Colladonus montanus
Differential transmission of four strains of Strawberry vein banding virus by four aphid vectors
Differential transmission of gametes in wheat
Differential transmission of nineteen variations of Strawberry mottle virus by Aphis gossypii Glover
Differential transmission of nineteen variations of strawberry mottle virus by Aphis gossypii Glover
Differential transmission of virus from leaves singly and doubly infected by vector-specific strains of Barley yellow dwarf virus
Differential uptake of 2,4-D acid and its octyl ester by seedling corn roots and coleoptile sections
Differential utilization of amino-acids by Myzus persicae (Sulzer) fed on artificial diets
Differential varieties used at the Instituto Agronomico do Sul for rusts race identifications
Differential weathering of volcanic ash and pumice, resulting in formation of hydrated halloysite
Differential winter mortality relative to sex in the population of the southern green stink bug, Nezara viridula (Pentatomidae, Hemiptera)
Differential zygotic lethality in a tomato species hybrid
Differential-diagnostic evaluation of serum samples from 1000 cows of problem herds, by the complement-fixation reaction for brucellosis
Differential-diagnostic host plants for A. tumefaciens and A. rhizogenes
Differentialdiagnostische Betrachrung uber eine selten vorkommende Art von Verkalkung bei Miescherschen Schlauchen
Differentials in growth habit as an aid in identifying changes during the seed increase of alfalfa
Differentiated susceptibility to p,p' DDT and gamma BHC in relation to sex in P. h. humanus
Differentiating live and deadspermatozoa with Cyanin B
Differentiating microfilariae of canine heartworms from those of a subcutaneous filariid (Dipetalonema)
Differentiating needle blights of White Pine in the interpretation of fume damage
Differentiating postvaccination reactions in brucellosis from virulent infection
Differentiation and development of flower buds in the apricot
Differentiation and properties of Newcastle disease virus strains
Differentiation and stability in the development of Nicotiana rustica
Differentiation between Cacao varieties on the basis of their susceptibility to infection by Ceratostomella fimbriata (E. & H.) Elliott, in Ecuador
Differentiation between Staphylococcus aureus, S. intermedius and S. hyicus using phenotypical tests and PCR
Differentiation between cacao varieties in Ecuador on the basis of their susceptibility to infection by Ceratostomella fimbriata.
Differentiation between cacao varieties on the basis of their susceptibility to infection by C. fimbriata (. and H.) Elliot in Ecuador Differentiation between five types of rough lemon
Differentiation between infective and Strain 19 titres by combined agglutination and complement-fixation tests in bovine brucellosis.
Differentiation between living and dead spermatozoa by fluorescence microscopy
Differentiation between specific and non-specific serological reactions in bovine brucellosis.
Differentiation between vaccinal and infectious brucellosis titers in cattle
Differentiation between vitamin B12deficient and folic acid-deficient megaloblastic anemias with C14-histidine
Differentiation by paper chromatography of some species and varieties of the genus Populus
Differentiation in Peronospora tabacina Adam
Differentiation in prices of agricultural products during the 6-years Plan in the context of general dynamics
Differentiation in the germination test of bases separated by ionophoresis
Differentiation in the morphological, physical and chemical properties of black soils as a consequence of changes in their utilization.
Differentiation in the pathogen of anthracnose of currants and gooseberries.
Differentiation in the potato tuber
Differentiation of Bacillus anthracis by bacteriophnge
Differentiation of Bacillus anthracis from other aerobic spore-bearers by agar gel diffusion.
Differentiation of Br. abortus and Br. melitensis by pathogenicity tests in pregnant goats. Comments on preceding paper
Differentiation of Brucella abortus and Br. melitensis by pathogen-icity tests in pregnant goats
Differentiation of Brucellae by the aid of phages
Differentiation of Clostridium septicum and Clostridium chauvoei by the use of fluorescent labelled antibodies
Differentiation of E. monocytogenes and E. rhusiopathiae by means of triphenyltetrazolium chloride
Differentiation of Listeria monocytogenes and Erysipelothrix rhusiopathiae.
Differentiation of Mosquito 121 Extracts by their Infrared Spectra
Differentiation of Oat Helminthosporia by the ragdoll method
Differentiation of Red Lauan (Shorea negrosensis Foxw.) and Tangile (S. polysperma (Blco.) Merr.)
Differentiation of Rhipicephalus in the Tarim basin
Differentiation of Salmonella typhi-murium by bacteriophage
Differentiation of Str. agalactiae by the CAMP test
Differentiation of Str. agalactiae by the CAMP test.
Differentiation of Streptococcus lactis var. maltigenes from other lactic streptococci
Differentiation of Tobacco ringspot and Tomato ringspot viruses by experimental host reactions
Differentiation of Trichinclla from other similar infections of the muscles of pigs.
Differentiation of Trichophyton rubrum from Trichophyton mentagrophytes
Differentiation of Ustilago hordei races on several media. Effect of temperature and point of inoculation on the symptomatology of Barley covered smut
Differentiation of Vibrio fetus and Vibrio bubulus based upon reactions in media containing ferrous sulfate
Differentiation of activity of three mouse strains with magnetic pickup apparatus
Differentiation of alpha -amino-acids and amines by nonenzymatic transamination on paper chromatograms
Differentiation of animal and vegetable fats
Differentiation of avian PPLO and bacterial forms
Differentiation of bean internode segments in tissue culture with added indoleacetic acid, 2, 4-dichlorophenoxyacetic acid, and maleic hydrazide
Differentiation of bean internode segments in tissue culture with added indoleacetic acid, 2,4-dichlorophenoxyacetic acid, and maleic hydrazide
Differentiation of bean segments in sterile culture with added IAA, 2,4-D and MH
Differentiation of bovine enteroviruses. I. Serological study and plaque morphology in cultures of calf testicular cells.
Differentiation of bovine tubercle bacilli from other mycobacteria by the determination of nicotinamidase activity
Differentiation of buds of white-headed cabbage during vernalization.
Differentiation of buffaloes' milk from cows' milk by electrophoresis of the proteins.
Differentiation of canine microfilariae of the United States
Differentiation of cells within clones-of Salmonella: spontaneous phenotypic variation in respect of motility
Differentiation of ciostridia from tinned meat
Differentiation of coliform organisms by infrared spectrophotometry
Differentiation of coliforms found on the teat and in the teat canal.
Differentiation of corynebacteria isolated from animals.
Differentiation of different races of Ph. infestans on seedlings of S. demissum (Lindl.) and S. stoloniferum (Schlecht. et Bouche)
Differentiation of doubtful agglutination reactions for brucellosis by the heat-inhibition test
Differentiation of encephalitis virus infection rates from transmission rates in mosquito vector populations
Differentiation of fibrovascular bundles and xylem vessels as affected by phosphorus nutrition of plants.
Differentiation of flower buds and dormancy of the pear in connexion with winter hardiness.
Differentiation of flower buds of apple trees
Differentiation of fruiting and non-fruiting Pimenta dioica (L.) Merr. trees based on composition of leaf volatiles
Differentiation of genital and intestinal vibriosis in cattle.
Differentiation of group A streptococci with a common R antigen into three serological types, with special reference to the bactericidal test
Differentiation of human tubercle bacilli from a typical acid-fast bacilli. I. Niacin production of human tubercle bacilli and a typical acid-fast bacilli
Differentiation of human-type and bovine-type tubercle bacilli by thiophene-2-carbonic acid hydrazide
Differentiation of immunobiological reactions in immunized and brucella-infected sheep.
Differentiation of infiltration capacity and of resistance to erosion of eroded chernozems of the central plateau of Moldavia.
Differentiation of live and dead spermatozoa in semen
Differentiation of macrocytic anemias and diagnosis of pernicious anemia and sprue in remission by accelerated measurement of hepatic uptake of radioactive Co60B12
Differentiation of microorganisms by means of the infrared spectra of their acetone extracts
Differentiation of mycobacteria types by means of culture media containing phenol red and phenol red plus malachite green.
Differentiation of non-specific tuberculin reactions with the simultaneous test
Differentiation of oat helminthosporia by the ragdoll method
Differentiation of oil content in white mustard by repeated mass selection. I. Influence upon the anatomy of the seed and the distribution of crude fat in the different parts of the seed
Differentiation of pathogenic from non-pathogenic staphylococci with the aid of a culture medium.
Differentiation of quail bronchitis virus and infectious bronchitis virus by heat stability
Differentiation of reactions in cattle to the comparative tuberculin test, using a simplified evaluation key
Differentiation of reactivated from residual phosphatase in high temperature-short time pasteurized milk and cream
Differentiation of red clover varieties
Differentiation of rice cultivars for sake production by PCR method
Differentiation of sapwood ahd heartwood in Western Hemlock by color tests
Differentiation of seeds of Rorippa spp. into weed seeds and inert
Differentiation of somatic and autonomic nerve fibres in tissue sections
Differentiation of some clinical syndromes in pigs
Differentiation of strains of Penicillium used to manufacture blue cheese in relation to different proteolytic activity.
Differentiation of strains of foot andmouth disease virus by a viraemia test on adult mice
Differentiation of the Mozambique species of the subgenus Glossina on the basis of Jackson's method
Differentiation of the acrosome in living mammalian spermatozoa and spermatids by fluorescence microscopy
Differentiation of the anthrax bacillus from anthracoid bacilli by means of the gel precipitin test.
Differentiation of the buds in certain olive cultivars of the Ascoli area
Differentiation of the causal agent of anthracnose of Currants and Gooseberries
Differentiation of the cultivated and wild Eleusine species
Differentiation of the florets of tall fescue and Italian ryegrass
Differentiation of the growing points and development of the flower parts in mixed buds of currants.
Differentiation of the growing points in biennial root crops.
Differentiation of the nuclei of pollen grains
Differentiation of the oocysts of Eimeria ellipsoidalis and E. cylindrica from cattle
Differentiation of the ova of Haemonchus sp., Trichostrongylus sp., Ostertagia sp. and Cooperia sp
Differentiation of the sheep stomach worms Teladorsagia davtiani (Andreeva and Satubaldin, 1954) and Oster-tagia trifurcata (Ransom, 1907.)
Differentiation of the sheep stomach worms Teladorsagia davtiani (Andreeva and Satubaldin, 1954) and Ostertagia trifurcata (Ransome, 1907)
Differentiation of the viruses of louping-ill and tick-borne encephalitis in tissue cultures.
Differentiation of the wood of P. abies seedlings in relation to the daily light rhythm.
Differentiation of three Atropellis species based on gross cultural characteristics
Differentiation of three Atropellis species, based on gross cultural characteristics
Differentiation of toxic and non-toxic variants of Stachybotrys alter-nans.
Differentiation of tree heights in pure even-aged Beech.
Differentiation of vaccine titres and infection titres in bovine brucellosis
Differentiation of vibrios isolated from the bovine genital system
Differentiation of viruses transmitted from Pelargonium hortorum
Differentiation of white- and brown-rot fungi by an oxidase reaction
Differentiation of yeasts by means of fluorescent antibody
Differentiation of yeasts on rice agar
Differentiation or lactic streptococci sad enterococci according io physiological properties.
Differentiation studies of fecal streptococci from farm animals
Differentiation-hybridization cvcles and polyploidy in Achillea. (Genetics and twentieth century Darwinism.)
Differentoatopm pf avoam tu
Differenzierung von Cathaemasia hians (Rudolphi, 1809) auf zwei Unterarten C. hians hians (Rud., 1809) und C. hians longivitellata subsp. nov
Differing degrees of alimentary lipaemia after ingestion of different vegetable oils
Difficult genetics
Difficulties and improvements in the serological method applied to the study of plant viruses
Difficulties and possibilities of the family farm; family cycles and management; a contribution to the discussion concerning family farms. (Studies. 2.)
Difficulties and solution to the landscape architecture education in agricultural colleges
Difficulties associated with breastfeeding. A study of 106 primiparae
Difficulties encountered in the introduction of chemical weed control into agriculture and horticulture.
Difficulties in diagnosing hydatidosis in rare locations.
Difficulties in differentiating Trichophyton mentagrophytes from T. rubrum.
Difficulties in evaluation of kyphotic conditions in early childhood. A contribution to clinical knowledge of the socalled rachitic Sitzbuckel (bend due to sitting)
Difficulties in long-term financing of agriculture through funds from co-operatives
Difficulties in pasture research
Difficulties in raising shrubs from seed
Difficulties in the characterization of soil bacterial strains.
Difficulties in the control of mastitis.
Difficulties in the study of soil structure & the problem of soil sampling.
Difficulties increase. An attempt to define the present state of agricultural policy
Difficulties of agricultural negotiations in the WTO: from Doha to Hong Kong
Difficulties of control of cerebrospinal nematodiasis (due to immature Setaria digitata) of goats and horses under tropical conditions
Difficulties of costing in the agricultural sector
Difficulties of cultivation on marsches.
Difficulties of motorized work on slopes; a contribution to the evaluation of sloping surfaces in agriculture
Difflobotriasis en nuestro pais. Sobre una nueva especie de Sparganum, parasita de salmones, y de Diphyllobothrium, paradsita de gaviotas, del lago Nahuel Huapi
Diffusa incidenza delle comuni parassitosi intestinali sugli stati di carenza del secondo anno di vita
Diffuse bronchopulmonary aspergillosis
Diffuse infiltration of the lungs associated with Cryptococcus luteolus
Diffuse lipomatosis in a heifer
Diffuse miliary toxo-plasmosis in a dog
Diffuse reflectance spectroscopy in photochemistry of opaque food products - methods and applications
Diffuse reflexion spectra of dairy products in the near infra-red region
Diffuse-field R.F. heating in the gluing of wood.
Diffusible and exchangeable rubidium ions in pea roots
Diffusible auxin in long-day plants
Diffusible auxin increase in a rosette plant treated with gibberellin
Diffusing capacity of the sheep placenta
Diffusion and adoption of agricultural practices: A study in a village in East Pakistan
Diffusion and nematode control by 1, 2-dibromoethane, 1, 3-dichloropropenej and l, 2-dibromo-3-chloropropane in soil
Diffusion and pest control by methyl bromide and chloropicrin applied to covered soil
Diffusion and sorption of aqua ammonia injected into soils
Diffusion between blood and synovial fluid in calves after administration of antibiotics
Diffusion chambers for the collection of helminth antigens
Diffusion de la bilharziose a Schistosoma haematobium en Haute-Volta
Diffusion distance of the radicals produced by ionizing radiations in cells
Diffusion equation calculations of field soil water infiltration profiles
Diffusion in the cellwalls of wood.
Diffusion in the soil solution of P2O6 contained in germinating seeds.
Diffusion of Ce144 in soil.
Diffusion of FeSO4 and tannic acid through isolated rumen mucosa of sheep and cattle. (Absorption in the rumen).
Diffusion of alkali chlorides in clay-water systems
Diffusion of antigen into antibody-charged agar in Wintrobe haematocrit tubes accelerated by centrifugation
Diffusion of dihydrostreptomycin and chlortetracycline into milk of cows following parenteral administration
Diffusion of gaseous carbon dioxide in soil.
Diffusion of glucose through the isolated rumen mucosa of cattle.
Diffusion of heavy-metal salts into wood and their effect on selected wood properties
Diffusion of herbicides through plastic film
Diffusion of innovations
Diffusion of ions in bentonite and vermiculite
Diffusion of ions in soil
Diffusion of oil films over insects
Diffusion of penicillinase from Staphylococcus aureus
Diffusion of phosphate in soil
Diffusion of phosphorus as related to soil texture and plant uptake
Diffusion of radioisotopes in soaked wheat seeds
Diffusion of rosin in benzine solutions in the capillaries of wood. 1. A simplified model of the kinetics of the process. 2. Diffusion in specially prepared samples.
Diffusion of rosin in benzine solutions in the capillaries of wood. 3. The place of capillary diffussion in the general process of rosin extraction from wood.
Diffusion of soil fumigants in tobacco row treatments
Diffusion of sorption-water through the cell wall of wood
Diffusion of strontium-90 and caesium-137 in soils.
Diffusion of tritiated water in soils
Diffusion of water vapor and its exchange between condensation and evaporation in soil
Diffusion of water vapour in wood and dynamic viscoelasticity.
Diffusion plate method for the determination of the fungistatic activity of antibiotics
Diffusion potential in fine films of water.
Diffusion speed of residual O2 in dried whole milk in containers sealed in N2.
Diffusion theory applied to water flow data obtained using gamma ray absorption
Diffusion through air-filled capillaries of softwoods - Part I: Carbon dioxide
Diffusion through air-filled capillaries of softwoods. Part II. Water vapour
Diffusion-porosity measurements using a non-steady state system
Diffusivity of soil water during sorption as affected by temperature
Difiuorotetrachlorethane (Freon-112) in the mass treatment of fascioliasis in sheep.
Diflusione delle parassitosi intestinali fra la popolazione infantile della Repubblica di San Marino. Considerazioni dinico-epidemiologiche
Digenctic trematodes in Louisiana fresh-water fishes
Digenetic trematodes in Louisiana fresh-water fishes
Digenetic trematodes of Puerto Rican shore birds
Digenetic trematodes of marine fishes from the Gulf of Panama and Bimini, British West Indies
Digenetic trematodes of marine fishes of Puerto Rico
Digenic control of male sterility in carrots, Daucus carota L
Digeribilita e valore nutritive dei cladodi e del frutto del-I'Opuntiaficus indica Mill impiegati nell'alimentazione animale.
Digest of Plant Quarantine Regulations. Second Supplement. South Pacific Commission Area
Digest of plant quarantine regulations. Supplement II
Digested sewage sludge for soil improvement
Digestibilities and diurnal excretion patterns of several carbohydrates fed to calves by nipple pail
Digestibility and N balance trials with sunflower oilmeal for pigs.
Digestibility and assimilation of the Mg of lucerne hay in the sheep.
Digestibility and biological protein value of some varieties of field beans
Digestibility and biological value of bacterial cells
Digestibility and biological value of protein of mould rye bran (contribution to the problem of moulding of feedingstuffs)
Digestibility and coefficient of efficiency for growth of a group of Spanish legumes
Digestibility and effect on growth of different fats in early weaned piglets
Digestibility and feeding experiments with dried beet pulp enriched with protein
Digestibility and feeding experiments with rapeseed and mustardseed meal of low and high fat content for dairy cows
Digestibility and feeding experiments with spring-sown winter rape on dairy cattle.
Digestibility and feeding trials with spring-sown autumn rape (B. napus. ssp. oleifera f. biennis)
Digestibility and feeding trials with spring-sown autumn rape (Brassica napus L. ssp. oleifera (Metzg.) Sinsk. f. biennis). (Kungl. Lantbrukshogsk. Statens Husdjursforsok Sartryck Forhandsmedd. No. 142)
Digestibility and feeding value for pigs of some grains, seeds and byproducts of milling and oil extraction
Digestibility and feeding value of Ampelodesmos tenax Link
Digestibility and feeding value of Dutch distiller's wet grains
Digestibility and feeding value of Siletta green fodder
Digestibility and feeding value of bolting and normal beets
Digestibility and feeding value of bolting and normal beets.
Digestibility and feeding value of different varieties of sorghum
Digestibility and feeding value of dried beet pulp and pellets of dried beet pulp
Digestibility and feeding value of fresh and ensiled serradella
Digestibility and feeding value of garden chervil seed
Digestibility and feeding value of oat mill feed
Digestibility and feeding value of protein-rich potato pulp
Digestibility and feeding value of safflower seed meal.
Digestibility and feeding value of some tropical grasses and kudzu
Digestibility and feeding value of the pea var. Violetta grown for green fodder
Digestibility and feedlot studies on rapeseed screenings for feeder lambs
Digestibility and fodder value of Cork Oak leaves.
Digestibility and fodder value of Elm and Poplar leaves.
Digestibility and intake of pasture studied in dairy cows by conventional and indicator methods.
Digestibility and nitrogen balance of diets containing non conventional vegetable proteins fed to pigs of genetic strains suitable for outdoor systems
Digestibility and nutrient value of acorns to pigs, and study of the carrying capacity of Quercus ilex stands.
Digestibility and nutritive value for pigs of prickly-pear meal
Digestibility and nutritive value of A. tenax
Digestibility and nutritive value of by-products of the Italian citrus industry
Digestibility and nutritive value of fodder pumpkins
Digestibility and nutritive value of grass hay after seed production
Digestibility and nutritive value of hay meal
Digestibility and nutritive value of maize silage
Digestibility and nutritive value of single species of grass and of herbage from leys
Digestibility and nutritive value of vegetable ivory from doum palms (Hyphaene spp.) when roasted
Digestibility and protein evaluation of dried activated sludge from purification plants for industrial waste waters (trials with growing pigs and albino rats)
Digestibility and ruminal parameters of rations containing tilapia filleting by-product silages
Digestibility by rats of margarine and hydrogenated rapeseed oil compared with butter.
Digestibility by rats of the fat of crude olive residues.
Digestibility coefficient and nutritive value of guar meal or churi
Digestibility data and grassland evaluation
Digestibility experiments and feeding trials with rapeseed oil meal and mustard seed oil meal with low respectively high fat content to dairy cows.
Digestibility experiments and feeding trials with the horse bean, Vicia faba minor
Digestibility experiments with pigs.
Digestibility experiments with pigs. 1. Comparison of pellets and meal for pigs
Digestibility experiments with pigs. 2. Soya bean meal, meat-and-bone meal, dried skimmed milk, potato protein, waste animal fat and millet
Digestibility experiments with pigs. II. Soyabean oil meal, meat and bone meal, dried skim-milk, potato protein, animal fat and millet.
Digestibility experiments with reindeer at Ojebyn 1957 to 1960
Digestibility in man of a synthetic triglyceride with mediumchain fatty acids (C8, C10, C12)
Digestibility in rabbits and sheep. 1. Lucerne hay.
Digestibility in rabbits and sheep. 2. Egyptian clover.
Digestibility in vitro and protein value
Digestibility in vitro by pepsin of meat (light and dark muscle) of poultry reared on range and in batteries
Digestibility in vivo and calculated nutritive value of Convolvulus arvensis L
Digestibility in vivo and calculated nutritive value of Convolvulus arvensis L.
Digestibility in vivo and calculated nutritive value of Ipomoea
Digestibility in vivo and calculated nutritive value of Ipomoea sp.
Digestibility in vivo and calculated nutritive value of horse bean, Vicia faba L. var. minor Beck.
Digestibility of llacho (Elodea sp. and Ranunculas sp.) by sheep.
Digestibility of Axonopus scoparius and Paspalum fasciculatum.
Digestibility of Imperial grass, Axonopus scoparius, and gamalote, Paspalumfasciculatum
Digestibility of Medicago tribuloides (barrel medic) pods
Digestibility of Vicia villosa herbage by the sheep
Digestibility of a mixture of kudzu (Pueraria phaseoloides) and Honduras grass (Ixophorus unisetus (Presl) Schlecht).
Digestibility of a mixture of kudzu (Pueraria phaseoloides) and Honduras grass (Ixophorus unisetus).
Digestibility of alfalfa hay and reed canary grass hay measured by two procedures
Digestibility of an enriched skimmed milk preparation for chickens
Digestibility of black iguana (Ctenosaura pectinata) fed with diets based on differents of insect and vegetable components
Digestibility of bone fat and beef tallow each of two different particle sizes.
Digestibility of brewers' grains by swine
Digestibility of chopped oat silage preserved with zinc bacitracin fed to cattle and sheep
Digestibility of corn germ as factor in its apparent hypocholesterolemic effects
Digestibility of cottonseed meal.
Digestibility of crude fat and higher fatty acids by pigs estimated with an indicator and paper chromatography.
Digestibility of crude protein and some amino acids in trials with pigs fed on naked and awned barley ground to different degrees of fineness
Digestibility of edible cottonseed oil
Digestibility of fall grown Kentucky 31 fescue
Digestibility of fat in food and its significance
Digestibility of fats and oils
Digestibility of feathermeal by chickens
Digestibility of feeds in pigs on different types of feeding
Digestibility of feeds preserved with sodium pyrosulphite
Digestibility of forage hemicellulose and pectin by rumen bacteria in vitro and the effect of lignification thereon
Digestibility of grass silages preserved with bacitracin and corn
Digestibility of grasses treated with gibberellic acid
Digestibility of heated and unheated soya meal by chickens
Digestibility of hen's eggs cooked in different ways.
Digestibility of high energy rations by dairy cattle
Digestibility of individual fatty acids in the rat
Digestibility of lignin in vines of Tangier pea (Lathyrus tingitanus) fresh or dried for hay.
Digestibility of lignin, hemicellulose and cellulose of wheat bread by man
Digestibility of marrow fat and tallow in particles of two different sizes.
Digestibility of milk fat by the young dairy calf
Digestibility of millet by poultry
Digestibility of mulberry leaves in larvae of Bombyx mori and in higher animals
Digestibility of nutrients for sheep on rations with different proportions of maize silage
Digestibility of nutrients in different rations for nutria
Digestibility of protein of different fishmeals in vitro
Digestibility of proteins
Digestibility of proteins associated with lignin in fodder plants.
Digestibility of rations containing different sources of supplementary protein by young pigs
Digestibility of rations of different types for fattening pigs
Digestibility of raw potato starch in diets that contain dried skimmed milk or cultured yeast as source of protein
Digestibility of samples of cocksfoot
Digestibility of some Spanish cheeses
Digestibility of some dry fruits
Digestibility of some foods after total gastrectomy
Digestibility of sorghum for hens.
Digestibility of sour milk products.
Digestibility of soybean hulls and flakes and the in vitro digestibility of the cellulose in various milling by-products
Digestibility of soybean oil and rape oil by swine
Digestibility of the alpha-cellulose and pentosan components of the cellulosic micelle of fescue and alfalfa
Digestibility of the bitter blue lupin
Digestibility of the ration and metabolism in pregnant sows on different types of feeding
Digestibility of the top and bottom portions of the alfalfa plant, as estimated from small randomly collected samples of feces
Digestibility of threonine and valine by rats fed soybean meal rations
Digestibility of uniformly labeled carbon-14 soybean cellulose in the rat
Digestibility of various Spanish cheeses.
Digestibility of various rations by steers as influenced by the length of preliminary feeding period
Digestibility of whale meat for blue foxes
Digestibility of wheat bran infested with flour mites (Tyroglyphusfarinae)
Digestibility of wheat, Sudan grass and drouth corn silages by wethers and steers. (Missouri Agric. Exp. Stat. Res. Bull. No. 628)
Digestibility of whole milk and milk substitutes with the addition of a mixture of tallow and lard or of bone fat.
Digestibility studies by means of chromic oxide, lignin and total collection techniques with sheep
Digestibility studies in man. 1. A method of study: the faecalogram
Digestibility studies on Napier (Merker) grass (Pennisetum purpureum), giant Pangola grass (Digitaria valida Stent), and signal grass (Brachiaria brizantha)
Digestibility studies on Venezuela grass (Paspalum fasciculatum) and plantain pseudostalks (Musa paradisiaca)
Digestibility studies on Venezuela grass (Paspalum fasciculatum) and plantain pseudostalks (Musa paradisiaca.)
Digestibility studies on levels of concentrates in complete pelleted rations for fattening lambs
Digestibility studies with butter, margarine and rape seed oil fed to rats.
Digestibility studies with fodder crops
Digestibility tests on varieties of fodder crops in trial
Digestibility trials on forages in Trinidad and their use in the prediction of nutritive value
Digestibility trials with AXA mink feeds I and II
Digestibility trials with chemically preserved feeding fish, fish waste and blood from slaughterhouses
Digestibility trials with goats of Granada breed
Digestibility trials with maize silage, beet tops, beet top silage, cottonseed cake and cottonseed meal, coconut cake and coconut meal, shea nut cake, linseed, maize germ meal, hay and other feeds
Digestibility trials with oats for hens and chickens
Digestibility trials with poultry. 1. The digestive tract of the hen and the technical problems encountered in digestibility trials
Digestibility trials with poultry. 2. Trials with barley. The relation between the amount of digestible matter and metabolisable energy
Digestibility trials with wethers; barium sulphate and chromic oxide as markers.
Digestibility, N balance and feeding experiments with growing laboratory animals and pigs, using a beardless barley mutant and its awned parent strain
Digestibility, consumption, and milk production by cows fed low moisture (43%) vs. wilted (68%) grass silage as the only roughage
Digestibility, distribution between liver and blood, and breakdown of cholesterol in the diet by rabbits and rats; comparative study
Digestibility, feeding value and productive possibilities of Psoralea bituminosa L., perennial legume of the infertile regions of the lower hills in the south.
Digestibility, nitrogen balance and feeding experiments with a naked-grained barley mutant and its glumed initial variety on growing laboratory animals and pigs
Digestibility, nutritive value and active principles of artichoke leaves (Cynara scolymus, L.)
Digestibility, nutritive value and possibility of spread of Psoralea bituminosa, a perennial legume of the sterile soils in the low hills of S. Italy.
Digestible and resistant starch in foods: adaptation of the AOAC method 996.11
Digestible energy in relation to food intake and nitrogen retention in the weanling rat
Digestible fibre to ADF ratio and starch level in diets for growing rabbits
Digestible laboratory nutrients as a method of estimating total digestible nutrients
Digestible protein levels in dry calf starters
Digestio of nitrogenous compounds by ruminants
Digestion and absorption as factors in body weight
Digestion and absorption of carbohydrates in the alimentary canal of the red cotton bug, Dysdercus koenigii Fabr. (Heteroptera :Pyrrhocoridae.)
Digestion and absorption of disaccharides in man
Digestion and absorption of fats in kwashiorkor
Digestion and absorption of food in Tribolium castaneum (Herbst)
Digestion and absorption of labelled fats in the premature and normal infant
Digestion and absorption of various carbohydrates posterior to the rumino-reticular area of the young bovine
Digestion and mucosal absorption of fat in normal and bile-deficient dogs
Digestion and pig fattening trial with malt-coffee residue
Digestion coefficients and nitrogen retention of young dairy calves as affected by antibiotics and advancing age
Digestion experiments and feeding trials with field beans (Vicia faba minor).
Digestion in Leidynema appendiculata (Leidy, 1850), a nematode parasitic in cockroaches
Digestion in cows when hay in the ration is replaced by maize silage.
Digestion in pigs fed on maize silage
Digestion in ruminants under different drinking regimens
Digestion in ruminants. Work of the Committee of the National Centre for the Coordination of Studies and Research on Nutrition and Feeding. 3rd ser., 1958-1961. Meeting held at the National Centre for Zootechnical Research, Jouy-en-Josas, May 1981
Digestion in sea anemones
Digestion in sheep fed on maize silage enriched with urea.
Digestion in the carp
Digestion in the horse
Digestion in the larva of Bombyx mori, L
Digestion in the rabbit's stomach
Digestion in the rumen and its importance in the nutrition of ruminants.
Digestion in the rumen and its significance in the feeding of ruminants.
Digestion in the rumen of cows and utilisation of N in feed with different protein intakes.
Digestion in vitro of pellets of lucerne dried artificially or cured in the sun compared with lucerne hay cured in the sun.
Digestion of cheese protein in vitro.
Digestion of cheese proteins in vitro.
Digestion of clay-protein, lignin-protein, and silica-protein complexes by enzymes and bacteria
Digestion of feed in the small intestine of hens
Digestion of foodstuffs in the rumen of the sheep and the passage of digesta through its compartments. 3. The progress of nitrogen digestion
Digestion of human and modified dried milk lipids with pancreatic lipase.
Digestion of irradiated fat in vivo
Digestion of nitrogenous compounds by ruminants
Digestion of nutrients by patients after total gastrectomy
Digestion of nutrients in relation to the technological treatment of bran
Digestion of starch and some of its degradation products by newborn pigs
Digestion of starch by the calf. Practical applications to feeding
Digestion of uredospores by Verticillium hemileiae
Digestion studies with oat silages using a new fecal collection technique
Digestion trials of feeds with Japanese native cattle. 2.
Digestion trials on Rhodesian feedstuffs
Digestion trials on Rhodesian feedstuffs. 2
Digestion trials on Rhodesian feedstuffs. 3
Digestion trials using chromogen , a plant pigment, as indicator. 2. Comparison of digestibility coefficients obtained by chromogen index method with those by total collection method.
Digestion trials using a plant pigment, so-called chromogen . 1. The character of plant pigment.
Digestion, absorption and metabolism of chimyl alcohol fed as free alcohol or as alkoxydiglyceride
Digestionin cagedlayers
Digestitibility of fiber in alfalfa and timothy hay
Digestive ability, nitrogen metabolism and carcass composition in pigs differing in time of maturity.
Digestive action of human gastric juice
Digestive allergy
Digestive candidosis in the Rabbit
Digestive derangements of horses
Digestive enzyme activities in the young calf
Digestive enzyme development in the young pig
Digestive enzymes hi placenta and digestive system of sheep foetuses.
Digestive enzymes of sheep in the boron geochemical zone of north-west Kazahstan.
Digestive enzymes of the baby pig. Pancreatic and salivary amylase
Digestive enzymes of the baby pig. Pepsin and trypsin
Digestive enzymes of the placenta and the digestive organs of the sheep foetus.
Digestive function and nippostrongylosis of the rat
Digestive function of the pancreas in sheep. 2
Digestive intolerance of lactose.
Digestive leucocytosis and specific dynamic action of foods in healthy subjects at night
Digestive manifestations due to Candida after antibiotherapy
Digestive physiology and nutrition of the ruminant
Digestive physiology and nutrition of the ruminant. Proceedings of the University of Nottingham Seventh Easter School in Agricultural Science, 1960
Digestive secretions and the flow of digesta along the duodenum of the sheep