Gentle, M.J. and Richardson, A. (1972) Changes in the electro-encephalogram of the chicken produced by stimulation of the crop. British Poultry Science 13, 163-170.
Gentle, M.J., Dewar, WA., Wight, PAL. and Dick, K.M. (1982) The effects of high dietary zinc on food intake in the domestic fowl. Appetite 3, 53-60.
Cherardi, S.G. and Black, J.L. (1991) Effect of palatability on voluntary feed intake by sheep. 1. Identification of chemicals that alter the palatability of a forage. Australian Journal of Agricultural Research 42, 571-584.
Gherardi, S.C., Black, J.L. and Colebrook, WE. (1991) Effect of palatability on voluntary feed intake by sheep. II. The effect of altering the palatability of wheaten hay on long-term intake and preference. Australian Journal of Agricultural Research 42, 585-598.
Gibbs, J., Young, R.C. and Smith, G.P. (1973) Cholecystokinin elicits satiety in rats with open gastric fistulas. Nature 245, 323-325.
Gidlewski, T., Cherry, J.A., Siegel, PB. and Van Krey, H.P. (1982) Feed intake responses of four populations of chickens to calories in liquid form. Archivs fur Geflngelkunde 46, 136-142.
Giles, L.R., Munson, RD. and Wilson, BR. (1981) Backfat studies in growing pigs. 1. Influence of energy intake on growth and carcass measurements at varying liveweights. Animal Production 32, 39-46.
Gill, MS. and Castle, M.E. (1983) The effects of the frequency of feeding concentrates on milk production and eating behaviour in Ayrshire dairy cows. Animal Production 36, 79-86.
Gill, M. and England, P. (1984) Effect of degradability of protein supplements on voluntary intake and nitrogen retention in young cattle fed grass silage. Animal Production 39, 31-36.
Gillette, K., Martin, G.M. and Bellingham, W.P. (1980) Differential use of food and water cues in the formation of conditioned aversions by domestic chicks (Gallus gallus). Journal of Experimental Psychology: Animal Behavior Processes 6, 99-111.
Gillingham, M.P. and Bunnel, F.L. (1989) Effects of learning on food selection and searching behaviour of deer. Canadian Journal of Zoology 67, 24-32.
Click, Z. (1979) Intestinal satiety with and without upper intestinal factors. American Journal of Physiology 236, R142-R146.
Glimp, H.A. (1971) Effect of diet composition on diet preference by lambs. Journal of Animal Science 33, 861-864.
Goatcher, W.D. and Church, D.C. (1970) Review of some nutritional aspects of the sense of taste. Journal of Animal Science 31, 973-981.
Golian, A. and Polin, C. (1984) Passage rate of feed in very young chickens. Poultry Science 63, 1013-1019.
Gordon, C.H., Derbyshire, IC., Wiseman, H.G. and Kane, E.A. (1961) Preservation and feeding value of alfalfa stored as hay, haylage, and direct cut silage. Journal of Dairy Science 44, 1299-1311.
Gordon, I.J. and Illius, A.W. (1992) Foraging strategy: from mosaic to mono- culture. In: Speedy, A.W. (ed.) Progress in Sheep and Goat Research, CAB International, Wallingford, pp. 153-177.
Gordon, J.G. (1964) Effect of time of year on the roughage intake of housed sheep. Nature 204, 798-799.
Gordon, J.G. (1965) The effect of water deprivation upon the rumination behaviour of housed sheep. Journal of Agricultural Science 64, 31-35.
Gordon, J.G. and Tribe, D.E. (1951) The self-selection of diet by pregnant ewes. Journal of Agricultural Science 41, 187-190.
Gordon, J.G., Tribe, D.E. and Graham, T.C. (1954) The feeding behaviour of phosphorus-deficient cattle and sheep. British Journal of Animal Behaviour 2, 72-74.
Gous, R.M. and DuPreez, J.J. (1975) The sequential feeding of growing chickens. British Journal of Nutrition 34, 113-117.
Graham, N.M. (1969) The influence of body weight (fatness) on the energetic efficiency of adult sheep. Australian Journal of Agricultural Research 20, 375-385.
Graham, N.M. and Searle, T.W. (1975) Studies of weaner sheep during and after a period of weight stasis. 1. Energy metabolism and nitrogen utilization. Australian Journal of Agricultural Research 26, 343-353.
Graham, N.M. and Williams, Aj. (1962) The effects of pregnancy on the passage of food through the digestive tract of sheep. Australian Journal of Agricultural Research 13, 894-900.
Graham, W.R. (1932) Can we learn anything from a free-choice of feeds as expressed by chicks? Poultry Science 11, 365-366.
Grant, S.A., Suckling, D.E., Smith, H.K., Torvell, I., Forbes, T.D.A. aud Hodgson, J. (1985) Comparative studies of diet selection by sheep and cattle: the hill grasslands. Journal of Ecology 73, 987-1004.
Green, G.C., Elwin, R.L., Mottershead, BE., Keogh, R.G. and Lynch, J.J. (1984) Long term effects of early experience to supplementary feeding in sheep. Proceedings of the Australian Society of Animal Production 15, 373-380.
Greenhalgh J.F.D. (1982) An introduction to herbage intake measurements. In: Leaver, J.D. (ed.) Herbage Intake Handbook. British Grassland Society, Maidenhead, Berks, pp. 1-10.
Greenhalgh, J.F.D. and Reid, G.W. (1967) Separating the effects of digestibility and palatability on food intake in ruminant animals. Nature 214, 744.
Greenhalgh, J.F.D. and Reid, G.W. (1969) The effects of grazing intensity on herbage consumption and animal production. 3. Dairy cows grazed at two intensities on clean and contaminated pastures. Journal of Agricultural Science 72, 223-228.
Greenhalgh, J.F.D., Reid, G.W. and Aitken, J.N. (1966) The effects of grazing intensity on herbage consumption and animal production. 1. Short-term effects in strip-grazing dairy cows. Journal of Agricultural Science 67, 13-23.
Greenwood, G.B. and Demment, MW. (1988) The effect of fasting on short-term cattle grazing behavior. Grass and Forage Science 43, 377-386.
Gregory, P.C. and Rayner, D.V. (1987) The influence of gastrointestinal infusion of fats on regulation of food intake in pigs. Journal of Physiology 385, 471-481.
Gregory, P.C., McEadyen, M. and Rayner, D.V. (1987) The influence of gastro intestinal infusions of glucose on regulation of food intake in pigs. Quarterly Journal of Experimental Physiology 72, 525-535.
Grill, H.J. (1986) Caudal brainstem contributions to the integrated neural control of energy homeostasis. In: Ritter. R.C., Ritter, S. and Barnes, CD. (eds) Feeding Behavior - Neural and Humoral Controls. Academic Press, New York, pp. 103-129.
Grimmett, R.F. (1939) Arsenical soils of the Waiotopee Valley. New Zealand Agriculture 58, 383.
Grovum, W.L. (1979) Factors affecting the voluntary intake of food by sheep. 2. The role of distension and tactile input from compartments of the stomach. British Journal of Nutrition 42, 425-436.
Grovum, W.L. (1981) Cholecystokinin administered intravenously did not act directly on the central nervous system or on the liver to suppress food intake by sheep. British Journal of Nutrition 45, 183-201.
Grovum, W.L. (1987) A new look at what is controlling food intake. In: Owens, F.N., (ed.) Symposium Proceedings, Feed Intake by Beef Cattle. Oklahoma State University, Stillwater, Oklahoma, pp. 1-40.
Grovum, W.L. and Bignell, W.W.(1989) Results refuting volatile fatty acids per se as signals of satiety in ruminants. Proceedings of the Nutrition Society 48, 3A.
Grovum, W.L. and Chapman, 11W. (1988) Factors affecting the voluntary intake of food by sheep. 4. The effect of additives representing the primary tastes on sham intakes by oesophageal fistulated sheep. British Journal of Nutrition 59, 63-72.
Grovum, W.L. and Phillips, GD. (1978) Factors affecting the voluntary intake of food by sheep. 1. The role of distension, flow-rate of digesta and propulsive motility in the intestines. British Journal of Nutrition 40, 323-336.
Grovum, W.L., Brobeck, JR. and Baile, C.A. (1974) Pentagastrin depressed feeding in sheep. Journal of Dairy Science 57, 608.
Gunn, R.G., Doney, J.M., Smith, W.F., Sim, D.A. and Hunter, E.A. (1991) A note on herbage intake by Greyface ewes on perennial ryegrass/white clover swards in the autumn. Animal Production 53, 257-260.
Hacker, J.B. (ed.) (1982) Nutritional Limts to Animal Production from Pastures. CAB, Farnham Royal, 536pp.
Hadjipieris, G. and Holmes, W. (1966) Studies on feed intake and feed utilisation by sheep. 1. The voluntary feed intake of dry, pregnant and lactating ewes. Journal of Agricultural Science 66, 217-223.
Hahn, G. (1981) Housing and management to reduce climatic impacts on livestock. Journal of Animal Science 52, 175-185.
Hancock, J. (1954) Studies in monozygotic cattle twins. New Zealand Department of Agriculture Animal Research Division, Publication No. 6.3.
Harb, MY. and Campling, R.C. (1983) Effects of the amount of barley and time of access to grass silage on the voluntary intake, eating behaviour and production of dairy cows. Grass and Forage Science 38, 115-119.
Harding, R. and Leek, B.F. (1972) Gastro-duodenal receptor responses to chemical and mechanical stimuli, investigated by a ‘single fibre’ technique. Journal of Physiology 222, 139P-140P.
Harding, R. and Leek, B.F. (1973) The effects of peripheral influences on gastric centre neuronal activity in sheep. Journal of Physiology 225, 309 -338.
Harding, R., Sigger, TN., Poore, E.R. and Johnson, p. (1984) Ingestion in fetal sheep and its relation to sleep states and breathing movements. Quarterly Journal of Experimental Physiology 69, 477-486.
Harper, A.E. (1974) Amino acids in nutrition. In: White, P.L. and Fletcher, D.C. (eds) Pnocessed Foods - Protein, Publishing Science Group, Acton, MA. pp. 49-54.
Harper, A.E. and Kumata, U. Effects of ingestion of disproportionate amounts of amino acids. Physiological Reviews 50, 428-558.
Harris, C.E. and Raymond, W.F. (1964) The effect of ensuing on crop digestibility. Journal of the British Grassland Society 18, 204-212.
Hawkes, MPG, and George, J.C. (1975) Effects of hypothalamic lesions on levels of plasma free fatty acids in the Mallard duck. International Archives of Physiology and Biochemistry 83, 763-770.
Hawkins, CD. and Morris, R.S. (1978) Depression of productivity in sheep infected with 1-asciola hepatica. Veterinary Parasitology 4, 341-351.
Hayne, H., Royce-Collier, C. and Gargano, D. (1986) Ambient temperature effects on energetic relations in growing chicks. Physiology and Behavior 37,203-212.
Hays, V.W. (1979) Effectiveness of feed additive usage of antibacterial agents in swine and poultry production. In: Office of Technical Assessment (ed.) Drugs in Livestock Feed. Vol. 1, United States Congress, Washington DC.
Healy, WI., Gill, B.P., English, P.R. and Davidson, F.M. (1993) The selection by young pigs of dietary cereal and protein fractions supplemented with amino acids to idealise protein contents. Animal Production 56, 468A.
Heaney, D.P. and Pigden, W.J. (1972) Effects of pre-conditioning on voluntary intake assay results using sheep. Journal of Animal S 35, 619-623.
Heaney, D.P., Pigden, W.J., Minson, D.J. and Pritchard, G.I. (1963) Effect of pelleting on energy intake of sheep from forages cut at three stages of maturity. Journal of Animal Science 22, 752-757.
Heaney, D.R., Pritchard, G.I. and Pigden, W.J. (1968) Variability in ad libitum forage intakes by sheep. Journal of Animal Science 27, 159-164.
Heitman, H., Hahn, L., Kelly, CF. and Bond, T.E. (1961) Space allotment and performance of growing finishing swine raised in confinement. Journal of Animal Science 20, 543-546.
Heitzman, R.J. and Walker, MS. (1973) The antiketogenic action of an anabolic steroid administered to ketotic cows. Research in Veterinary Science 15, 70-77.
Hernsley, J.A. and Moir, R.J. (1963) The influence of higher volatile fatty acids on the intake of urea-supplemented low-quality cereal hay by sheep. Australian Journal of Agricultural Science, 14, 509-517.
Henning, P.H. (1987) The effect of increased energy demand through walking exercise on intake and ruminal characteristics on sheep fed a roughage diet. Journal of Agricultural Science 109, 53-59.
Henry, R.W., Pickard, D.W. and Hughes, P.E. (1985) Citric acid and fumaric acid as food additives for early-weaned piglets. Animal Production 40, 505-509.
Henry, Y. (1968) Libre consommation de principes inergetiques et azotes chez Ic rat and chez le pore scion Ia nature de Ia source azotee, sa concentration dans Ia regime et le modede presentation. [ intake of energy and nitrogen in the rat and pig, according to the source of nitrogen, its concentration and mode of presentation.] Annales de Nutrition et Alimentation 22, 141 -‘-154.
Henry, Y. (1985) Dietary factors involved in feed intake regulation in growing pigs: a review. Livestock Production Science 12, 339-354.
Henry, Y., Colleaux, Y. and Seve, B. (1992) Effects of dietary level of lysine and of level and source of protein on feed intake, growth performance, and plasma amino acid pattern in the finishing pig. Journal of Animal Science 70, 188-195.
Herpin. P., Bertin, R., Le Dividich, J. and Portet, R. (1987) Some regulatory aspects of thermogenesis in cold-exposed piglets. Comparative Biochemistry and Physiology 87, 1073-1081.
Hervey, G.R. (1959) The effects of lesions in the hypothalamus in parabiotic rats. Journal of Physiology 145, 336-352.
Hervey, G.R. and Tobin, G. (1983) Luxuskonsumption: diet-induced thermogenesis and brown fat: a critical review. Clinical Science 64, 7-18.
Hess, Elf and Gogel, W.C. (1954) Natural preferences of the chick for objects of different colours. Journal of Psychology 38, 483-493.
Hidari, H. (1977) Diurnal changes of volatile fatty acid concentration in the rumen of sheep fed in free access. Japanese Journal of Zootechnical Science 48, 38-46.
Hidari, H. (1981) The relationships between rumen load and diurnal eating pattern of sheep fed in various times of access to feed. Japanese Journal of Zootechnical Science 52, 219-226.
Hijikuro, S. and Takewasa, M. (1981) Studies on the palatability and utilization of whole grains for finishing broilers. Japanese Poultry Science 18, 301.
Hill, F.W. and Dansky, L.M. (1954) Studies of the energy requirements of chickens. 1. The effect of dietary energy level on growth and feed consumption. Poultry Science 33, 112-119.
Hill, F.W., Carew, LB. and van Tienhoven, A. (1958) Effect of diethylstilbesterol on utilization of energy by the growing chick. American Journal of Physiology 195, 654-658.
Hill, J.A. (1977) The relationship between food and water intake in the laying hen. PhD thesis, Huddersfield Polytechnic.
Hill, J.A., Powell, A.J. and Charles, DR. (1979) Water intake. In: Boorman, K.N. and Freeman, B.M. feds) Food Intake Regulation in Poultry. Longman Edinburgh, pp. 231-257.
Hill, K.J. (1979) Physical effects of food in the digestive tract in relation to intake. In: Boorman, K.N. and Freeman, B.M. (eds) Food Intake Regulation in Poultry. Longman, Edinburgh, pp. 191-198.
Hill, R.W. (1976) Comparative Physiology of Animals. An Environmental Approach. Harper & Row, New York.
Hillman, D., Lassiter, CA., Huffman, CF. and Duncan, C.W. (1958) Effect of all-hay vs. all-silage rations on dry matter intake of lactating dairy cows; moisture and pH factors affecting appetite. Journal of Dairy Science 41, 720.
Flinch, G.N., Thwaites, C.J. and Lynch, J.J. (1982) A note on the grazing behaviour of young bulls and steers. Animal Production 35, 289-291.
Hinton, V., Rosofsky, M., Granger, J. and Geary, N. (1986) Combined injection potentiates the satiety effects of pancreatic glucagon, cholecystokinin, and bombesin. Brain Research Bulletin 17, 613-615,
Hinton, V., Esguerra, M., Farhoody, N., Granger, J. and Geary, N. (1987) Epinephrine inhibits feeding nonspecificallv in the rat. Physiology and Behavior 40, 109-115.
Hocking, P.M. and Bernard, R. (1993) Evaluation of putative appetite suppressants in the domestic fowl (Gallus domesticus). British Poultry Science 34, 393-404.
Hodge, R.W.(1966) The relative pasture intake of grazing lambs at two levels of milk intake. Australian Journal of Experimental Agriculture and Animal Husbandry 314-316.
Hodgkin, AL. and Katz, B. (1949) The effect of sodium ions on the electrical activity of the giant axon of the squid. Journal of Physiology 225, 309-338.
Hodgkiss, J.P. (1981) Distension-sensitive receptors in the crop of the domestic fowl (Gallus domesticus). Comparative Biochemistry and Physiology 70A, 73-78.
Hodgkiss, J.P. (1984) Cholinergic neurones project orally in the intestinal nerve of the fowl. Journal of Physiology349, 36P.
Hodgson, J. (1968) The relationship between the digestibility of a sward and the herbage consumption by grazing calves. Journal of Agricultural Science 70, 47-51.
Hodgson, J. (197 The development of solid food intake in calves. 1. The effect of previous experience of solid food, and the physical form of the diet, on the development of food intake after weaning. Animal Production 13, 15-24.
Hodgson, J. (1971b) The development of solid food intake in calves. 4. The effect of the addition of material to the rumen, or its removal from the rumen, on voluntary food intake. Animal Production 13, 581-592.
Hodgson, J. (1971c) The development of solid food intake in calves. 5. The relationship between liquid and solid food intake. Animal Production 13, 593-597.
Hodgson, J. (1973) The effect of the physical form of the diet on the consumption of solid food by calves, and the distribution of food residues in their alimentary tracts. Animal Production 17, 129-138.
Hodgson, J. (1982) Ingestive behaviour. In: Leaver, J.D. (ed.) Herbage intake Handbook. British Grassland Society, Maidenhead, Berks, pp. 113-138.
Hodgson, J. (1985) The control of herbage intake in the grazing ruminant. Proceedings of the Nutrition Society 44, 339-346.
Hodgson, J. (1990) Grazing Management. Science into Practice. Longman Scientific and Technical, Harlow, Essex, 203pp.
Hodgson, J. and Maxwell, T.J. (1981) Grazing research and grazing management. In: Hill Farming Research Organisation Biennial Report, 1979-81, H.F.R.O. Edinburgh, pp. 169-187.
Hodgson, J. and Wilkinson, J.M. (1967) The relationship between live-weight and herbage intake in grazing cattle. Animal Production 9, 365-376.
Hodgson, J., Rodriguez Capriles, J.M. and Fenlon, J.S. (1977) The influence of sward characteristics on the herbage intake of grazing calves. Journal of Agricultural Science 89, 743-750.
Hogan, J.A. (1973) Development of food recognition in young chicks. 1. Maturation and nutrition. Journal of Comparative and Physiological Psychology 355-366.
Holcombe, D.J., Roland, D.A. and Harms, RH. (1975) The ability of hens to adjust calcium intake when given a choice of diets containing two levels of calcium. Poultry Science 54, 552-561.
Holcombe, D.J., Roland, D.A. and Harms, RH. (1976a) The ability of hens to regulate phosphorus intake when offered diets containing different levels of phosphorus. Poultry Science 55, 308-317.
Holcombe, D.J., Roland, D.A. and Harms, RH. (1976b) The ability of hens to regulate protein intake when offered a choice of diets containing different levels of protein. Poultry Science 55, 1731 -1737.
Holcombe, D.W., Hallford, D.M. and Hoefler, W.C. (1988) Reproductive and lactational responses and serum growth hormone and insulin in fine-wooled ewes treated with ovine growth hormone. Animal Production 46, 195-202.
Holder, J.M. (1963) Chemostatic regulation of appetite in sheep. Nature 200, 1074-1075.
Holder, M.D. (1991) Conditioned preferences for the taste and odour components of flavors: blocking but not overshadowing. Appetite 17, 29-45.
Holme, D.W. and Coey, WE. (1967) The effect of environmental temperature and method of feeding on the performance and carcass composition of bacon pigs. Animal Production 9,209-218.
Holmes, E.G. and Fraser, F.J. (1965) An attempt to produce hyperphagia in sheep by electrical damage to the hypothalamus. Australian Journal of Biological Science 18, 345-352.
Holmes, PH. (1993) Interactions between parasites and animal nutrition - the veterinary consequences. Proceedings of the Nutrition Society 52, 113-120.
Holmes, W. (ed.) (1989) Grass, its Production and Utilisation, 2nd edn. Blackwell Scientific, Oxford.
Holmes, W., Jones, J.G.W. and Drake-Brockman, R.M. (1961) The feed intake of grazing cattle. 2. The influence of size of animal on feed intake. Animal Production 3, 251-260.
Hopkins, JR. (1985) Feeding the dairy cow by maximising forage and minimising concentrate input. Mimeograph, ADAS Regional Nutrition Chemist, Leeds, l2pp.
Horton, G.M.J., Malinowski, K. and Talbot, J.A. (1990) Effect of confinement on performance and physiological indicators of stress in lambs. Journal of Animal Science 68 Suppl 1, 260.
Hou, X.Z., Emmans, CC., Anderson, D., Illius, A. and Oldham, J.D. (1991a) The effect of different pairs of feeds offered as a choice on food selection by sheep. Proceedings of the Nutrition Society 50, 94A.
Hou, X.Z., Lawrence, A.B., Illius, A., Anderson, D. and Oldham, J.D. (1991b) Operant studies on feed selection in sheep. Proceedings of the Nutrition Society 50, 95A.
Houpt, K.A. and Houpt, T.R. (1976) Comparative aspects of the ontogeny of taste. Chemical Senses and Flavor 2, 219-228.
Houpt, K.A. and Houpt, T.R. (1977) The neonatal pig, a biological model for the development of taste preferences and controls of ingestive behavior. In: Weiffenbach, J.M. (ed.) Taste and Development. US Dept. Health, Education and Welfare, Bethesda, Maryland, pp. 86-98.
Houpt, K.A. and Wolski, T. (1982) Domestic Animal Behavior for Veterinarians and Animal Scientists. Iowa State University Press, Ames.
Houpt, K.A., Houpt, T.R. and Pond, W.G. (1977) Food intake controls in the suckling pig: glucoprivation and gastrointestinal factors. American Journal of Physiology 232, F510-E514.
Houpt, K.A., Houpt, T.R. and Pond, W.G. (1979) The pig as a model for the study of obesity and of control of food intake: a review. Yale Journal of Biology and Medicine 52, 307-329.
Houpt, T.R. (1974) Stimulation of food intake in ruminants by 2deoxy-d-glucose and insulin. A Journal of Physiology 227, 161-167.
Houpt, T.R. (1983a The controls of food intake in the pig. In: Laplace, J.P., Corring, T. and Rerat, A. (eds) Physiologic Digestive Chez le Porc, INRA, Paris, pp. 17-28.
Houpt, T.R. (1983b) The sites of action of cholecystokinin in decreasing meal size of pigs. Physiology and Behavior 31, 693-698.
Houpt, T.R. (1985) Control at the gut level. Proceedings of the Nutrition Society 44, 323-330.
Houpt, T.R., Baldwin, B.A. and Houpt, K.A. (1983) Effects of duodenal osmotic loads on spontaneous meals in pigs. Physiology and Behavior 30, 787-796.
Hovell, F.D.D. and Greenhalgh, J.F.D. (1978) The utilisation of diets containing acetate, propionate or butyrate salts by growing lambs. British Journal of Nutrition 40, 171-183.
Hovell, F.D.D., Ngambi, J.W.W., Barber, W.P. and Kyle, D.J. (1986) The voluntary intake of hay by sheep in relation to its degradability in the rumen as measured in nylon bags. Animal Production 42, 111-118.
Howes, G.A. and Forbes, J.M. (l Food intake of domestic fowl injected with adrenergic agonists and antagonists into the hepatic portal vein. Pharmacology, Biochemistry and Behavior 26, 757-764.
Howes, G.A. and Forbes, J.M. (1987b) A role for the liver in the effects of glucagon on food intake in the domestic fowl. Physiology and Behavior 39, 587-592.
Hsia, L,C. and Wood-Gush, D.G.M. (1983) A note on social facilitation and competition in the feeding behaviour of pigs. Animal Production 37, 149-152.
Huber, J.T. and Soejono, M. (1976) Organic acid treatment of high dry matter corn silage fed lactating dairy cows. Journal of Dairy Science 59, 2063-2070.
Huffman, C.F. (1959) Summer feeding of dairy cattle. A review. Journal of Dairy Science 42, 1495-1551.