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Digestion and metabolism of dietary fat in farm animals

  • Michel Doreau (a1) and Yves Chilliard (a1)
Abstract

Fat digestion and metabolism differ widely between animal species. In ruminants, dietary fats are hydrogenated in the rumen before intestinal absorption so that absorbed fatty acids (FA) are more saturated than dietary FA. In non-ruminants, intestinal FA digestibility depends on the level of saturation of dietary FA. Fat supplementation of the diet of cows decreases milk protein and has a variable effect on milk fat, depending on the source of dietary lipids. When encapsulated lipids are used, the linoleic acid content of milk is increased, but the organoleptic quality of milk may be altered. Supplementary lipids are incorporated into non-ruminant body fat, whereas de novo lipogenesis is reduced. There is a close relationship between the nature of dietary FA and non-ruminant body FA.

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References
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Ashes, J. R., Gulati, S. K., Cook, L. J., Scott, T. W. & Donnelly, J. B. (1979). Assessing the biological effectiveness of protected lipid supplements for ruminants. Journal of the American Oil Chemists' Society 56, 522527.
Ashes, J. R., Siebert, B. D., Gulati, S. K., Cuthbertson, A. Z. & Scott, T. W. (1992). Incorporation of n–3 fatty acids of fish oil into tissue and serum lipids of ruminants. Lipids 27, 629631.
Badings, H. T., Tamminga, S. & Schaap, J. E. (1976). Production of milk with a high content of polyunsaturated fatty acids. II. Fatty acid composition of milk in relation to the quality of pasteurized milk, butter and cheese. Netherlands Milk and Dairy Journal 30, 118131.
Banks, W., Clapperton, J. L., Girdler, A. K. & Steele, W. (1984). Effect of inclusion of different forms of dietary fatty acids on the yield and composition of cow's milk. Journal of Dairy Research 51, 387395.
Bauchart, D. (1993). Lipid absorption and transport in ruminant animals. Journal of Dairy Science 76, 38643881.
Bauchart, D. & Aurousseau, B. (1993). Digestion et métabolisme des lipides chez le veau de boucherie: conséquences sur la composition en lipides des tissus (Lipid digestion and metabolism in the preruminant calf: effects on tissue lipid composition). Viandes et Produits Carnés 14, 172182.
Bauchart, D., Legay-Cannier, F. & Doreau, M. (1990 a). Relationship between linoleic acid intake and duodenal flows in dairy cows offered lipid supplemented diets. Reproduction Nutrition Development 30, Suppl. 2, 188s.
Bauchart, D., Legay-Carmier, F., Doreau, M. & Gaillard, B. (1990 b). Lipid metabolism of liquid-associated and solid-adherent bacteria in rumen contents of dairy cows offered lipid-supplemented diets. British Journal of Nutrition 63, 563578.
Ben Salem, H., Krzeminski, R., Ferlay, A. & Doreau, M. (1993). Effect of lipid supply on in vivo digestion in cows: comparison of hay and corn silage diets. Canadian Journal of Animal Science 73, 547557.
Børsting, C. F., Hvelplund, T. & Weisbjerg, M. R. (1992). Fatty acid digestibility in lactating cows fed increasing amounts of protected vegetable oil or saturated fat. Acta Agricultura Scandinavica, Section A, Animal Science 42, 148156.
Boudreau, A. & Arul, J. (1993). Cholesterol reduction and fat fractionation technologies for milk fat: an overview. Journal of Dairy Science 76, 17721781.
Cadden, A. M., Urquhart, A. & Jelen, P. (1984). Storage stability of canola-based protected lipid feed supplement and its effect on characteristics of milk and butter. Journal of Duiry Science 67, 14141420.
Caudron, I., Castaing, J., Magnin, M., Lessire, M., Barrier-Guillot, B., Bureau, J., Zwick, J. L. & Messager, B. (1993). Influence de l'incorporation de différentes matières grasses dans l' aliment sur la qualité des carcasses de poulet de chair (Influence of the incorporation of different fats in the diet on carcass quality in broilers). In Quality of Poultry Meat, pp. 93102 [Colin, P., Culioli, J. and Ricard, F. H., editors]. Tours, France: WPSA.
Cheng, K. J. & Costerton, J. W. (1980). Adherent rumen bacteria. Their role in the digestion of plant material, urea and epithelial cells. In Digestive Physiology and Metabolism in Ruminants, pp. 227250 [Ruckebusch, Y. and Thivend, P., editors]. Lancaster: MTP Press Ltd.
Chilliard, Y. (1982). Variations physiologiques des activités lipasiques et de la lipolyse spontanée dans les laits de vache, de chèvre et de femme: revue bibliographique (Physiological variations in lipase activities and spontaneous lipolysis in bovine, caprine and human milk: a review). Lait 62, 131 and 126–154.
Chilliard, Y. (1993). Dietary fat and adipose tissue metabolism in ruminants, pigs, and rodents: a review. Journal of Dairy Science 76, 38973931.
Chilliard, Y., Bauchart, D., Gagliostxo, G., Ollier, A. & Vermorel, M. (1991 a). Duodenal rapeseed oil infusion in early and midlactation cows. 1. Intestinal apparent digestibility of fatty acids and lipids. Journal of Dairy Science 74, 490498.
Chilliard, Y. & Bocquier, F. (1993). Effects of fat supplementation on milk yield and composition in dairy goats and ewes. In La Qualita nelle Produzioni dei Piccoli Ruminanti, pp. 6178 [Enne, G. and Greppi, G. F., editors]. Varese, Italy: Camera di Commercio Industria Artigianato Agricoltura di Varese.
Chilliard, Y. & Doreau, M. (1997). Influence of supplementary fish oil and rumen-protected methionine on milk yield and composition in dairy cows. Journal of Dairy Research 64, 173179.
Chilliard, Y., Doreau, M., Gagliostro, G. & Elmeddah, Y. (1993). Addition de lipides protégés (encapsulés ou savons de calcium) à la ration de vaches laitières. Effets sur les performances et la composition du lait (Protected (encapsulated or calcium salts) lipids in dairy cow diets. Effects on production and milk composition). INRA Productions Animales 6, 139150.
Chilliard, Y., Gagliostro, G., Fléchet, J., Lefaivre, J. & Sebastian, I. (1991 b). Duodenal rapeseed oil infusion in early and midlactation cows. 5. Milk fatty acids and adipose tissue lipogenic activities. Journal of Dairy Science 74, 18441854.
Chilliard, Y., Vacelet, J. M., Durand, D. & Bauchart, D. (1992). Portal-drained viscera (PDV) and hepatic production rates of energy metabolites in high yielding dairy cows. Effects of a fat supplement on PDV rates. Reproduction Nutrition Development 32, 501 Abstr.
Clinquart, A., Istasse, L., Dufrasne, I., Mayombo, A., Van Eenaeme, C. & Bienfait, J. M. (1991). Effects on animal performance and fat composition of two fat concentrates in diets for growing-fattening bulls. Animal Production 53, 315320.
Clinquart, A., Micol, D., Brundseaux, C., Dufrasne, I. & Istasse, L. (1995). Utilisation des matières grasses chez les bovins à l'engraissement (Use of fat in fattening diets for cattle). INRA Productions Animales 8, 2942.
Cook, D. A., McGilliard, A. D. & Richard, M. (1967). In vitro conversion of long-chain fatty acids to ketones by bovine rumen mucosa. Journal of Dairy Science 51, 715720.
Cottyn, B. G., Buysse, F. X. & Boucqué, C. V. (1971). The effect of linseed oil fatty acids on digestibility and rumen fermentation. Zeitschrgt für Tierphysiologie, Tieremährung und Futtermittelkunde 27, 252259.
Demeyer, D. I., Henderson, C. & Prins, R. A. (1978). Relative significance of exogenous and de novo synthesized fatty acids in the formation of rumen microbial lipids in vitro. Applied and Environmental Microbiology 35, 2431.
Demeyer, D. I. & Hoozee, J. (1984). Schatting van linolzuursintese in de pens van een schaap bij eiwiten vetvrije voedering (Estimated synthesis of linoleic acid in the rumen of a sheep fed a protein and fat free diet). 9de Studiedag voor Nederlandstalige Voedingsonderzockers, Utrecht, pp. 2728.
Demeyer, D. I. & Van Nevel, C. J. (1995). Transformations and effects of lipids in the rumen: three decades of research at Gent University. Archives of Animal Nutrition 48, 119134.
Doreau, M. (1992). Effect of supplementation with hydrogenated fish oil on digestion in cows. Annales de Zoorechnie 41, 137143.
Doreau, M. & Boulot, S. (1989). Recent knowledge on mare milk production: a review. Livestock Production Science 22, 213235.
Doreau, M. & Chilliard, Y. (1992). Influence d'une supplémentation de la ration en lipides sur la qualité du lait chez la vache (Fat supplementation in dairy rations and its consequences on milk quality in dairy cows). INRA Productions Animales 5, 103111.
Doreau, M. & Chilliard, Y. (1997). Effects of ruminal or postruminal fish oil supplementation on intake and digestion in dairy cows. Reproduction Nutrition Development 37, 113124.
Doreau, M., Demeyer, D. I. & Van Nevel, C. (1997). Transformations and effects of unsaturated fatty acids in the rumen. Consequences on milk fat secretion. In Milk Composition, Production and Biotechnology, pp. 7392 [Welch, R. A. S.; Burns, D. J. W., Davis, S. R., Popay, A. I. and Prosser, G. G., editors]. Wallingford: CAB INTERNATIONAL.
Doreau, M. & Ferlay, A. (1994). Digestion and utilisation of fatty acids by ruminants. Animal Feed Science and Technology 45, 379396.
Doreau, M. & Ferlay, A. (1995). Effect of dietary lipids on nitrogen metabolism in the rumen: a review. Livestock Production Science 43, 97110.
Edmondson, L. F., Yoncoskie, R. A., Rainey, N. H., Douglas, F. W. Jr & Bitman, J. (1974). Feeding encapsulated oils to increase the polyunsaturation in milk and meat fat. Journal of the American Oil Chemists' Society 51, 7276.
Edwards, H. M. Jr & Hart, P. (1971). Carcass composition of chickens fed carbohydrate-free diets containing various lipid energy sources. Journal of Nutrition 101, 986996.
Eilmans, I. (1991). Fettverdauung beim bferd sowie die Folgen einer marginalen Fettversorgung (Digestibility of fat in horses and the consequences of marginal fat supply). Inaugural Dissertation for Doctor of Veterinary Medicine, Hannover, Germany.
Elmeddah, Y., Doreau, M. & Michalet-Doreau, B. (1991). Interaction of lipid supply and carbohydrates in the diet of sheep with digestibility and ruminal digestion. Journal of Agricultural Science, Cambridge 116, 437445.
Emmanuel, B. (1974). On the origin of rumen protozoan fatty acids. Biochimica et Biophysica Acta 337, 404413.
Enjalbert, F., Nicot, M. C., Vernay, M., Moncoulon, R. & Griess, D. (1994). Effect of different forms of polyunsaturated fatty acids on duodenal and serum fatty acid profiles in sheep. Canadian Journal of Animal Science 74, 595600.
Farnworth, E. R. & Kramer, J. K. G. (1987). Fat metabolism in growing swine: a review. Canadian Journal of Animal Science 67, 301318.
Ferlay, A., Chabrot, J., Elmeddah, Y. & Doreau, M. (1993). Ruminal lipid balance and intestinal digestion by dairy cows fed calcium salts of rapeseed oil fatty acids or rapeseed oil. Journal of Animal Science 71, 22372245.
Ferlay, A. & Doreau, M. (1995). Influence of method of administration of rapeseed oil in dairy cows. 2. Status of divalent cations. Journal of Dairy Science 78, 22392246.
Fisher, C. (1984). Fat deposition in broilers. In Fats in Animal Nutrition, pp. 437470 [Wiseman, J., editor]. London: Butterworths.
Ford, A. L., Park, R. J. & Ratcliff, D. (1976). Effect of a protected lipid supplement on flavor properties of beef. Journal of Food Science 41, 9496.
Fotouhi, N. & Jenkins, T. C. (1992). Resistance of fatty acyl amides to degradation and hydrogenation by ruminal microorganisms. Journal of Dairy Science 75, 15271532.
Freeman, C. P. (1994). The digestion, absorption and transport of fats: non-ruminants. In Fats in Animal Nutrition, pp. 105122 [Wiseman, J., editor]. London: Butterworths.
Galbraith, H., Miller, T. B., Paton, A. M. & Thompson, J. K. (1971). Antibacterial activity of long-chain fatty acids and the reversal with calcium, magnesium, ergocalciferol and cholesterol. Journal of Applied Bacteriology 34, 803813.
Garnsworthy, P. C. (1996). The effects on milk yield and composition of incorporating lactose into the diet of dairy cows given protected fat. Animal Science 62, 13.
Garrett, W. N., Yang, Y. T., Dunkley, W. L. & Smith, L. M. (1976). Increasing the polyunsaturated fat content of beef and lamb. Journal of Animal Science 42, 845853.
Gerson, T., John, A. & King, A. S. D. (1985). The effects of dietary starch and fibre on the in vitro rates of lipolysis and hydrogenation by sheep rumen digesta. Journal of Agricultural Science, Cambridge 105, 2730.
Goering, H. K., Gordon, C. H., Wrenn, T. R., Bitman, J., King, R. L. & Douglas, F. W. Jr (1976). Effect of feeding protected safflower oil on yield, composition, flavor and oxidative stability of milk. Journal of Dairy Science 59, 41–25.
Goosen, P. C. M. (1975). Absorption of long-chain fatty acids by rumen epithelium: experiments in vivo and in vitro. Zeitschrift für Tierphysiologie, Tierernährung und Futtermittelkunde 35, 296302.
Hagemeister, H. & Kaufmann, W. (1979). Verdaulichkeit von Fettsäuren im Darm von Milchkühen (Digestibility of fatty acids in the intestine of dairy cows). Kieler Milchwirtschaftliche Forschungsberichte 31, 3139.
Harfoot, C. G., Crouchman, M. L., Noble, R. C. & Moore, J. H. (1974). Competition between food particles and rumen bacteria in the uptake of long-chain fatty acids and triglycerides. Journal of Applied Bacteriology 37, 633641.
Harfoot, C. G. & Hazlewood, G. P. (1988). Lipid metabolism in the rumen. In The Rumen Microbial Ecosystem, pp. 285322 [Hobson, P. N., editor]. London and New York: Elsevier Applied Science.
Harfoot, C. G., Noble, R. C. & Moore, J. H. (1973). Food particles as a site for biohydrogenation of unsaturated fatty acids in the rumen. Biochemical Journal 132, 829832.
Hegsted, D. M., Ausman, L. M., Johnson, J. A. & Dallal, G. E. (1993). Dietary fat and serum lipids: an evaluation of the experimental data. American Journal of Clinical Nutrition 57, 875883.
Hillard, B. L., Lundin, P. & Clarke, S. D. (1980). Essentiality of dietary carbohydrate for maintenance of liver lipogenesis in the chick. Journal of Nutrition 110, 15331542.
Hogan, J. P., Connell, P. J. & Mills, S. C. (1972). The digestion of safflower oil casein particles protected against ruminal hydrogenation in sheep. Australian Journal of Agricultural Research 23, 8795.
Ikwuegbu, O. A. & Sutton, J. D. (1982). The effect of varying the amount of linseed oil supplementation on rumen metabolism in sheep. British Journal of Nutrition 48, 365375.
Jenkins, T. C. (1993). Lipid metabolism in the rumen. Journal of Dairy Science 76, 38513863.
Jenkins, T. C. (1995). Butylsoyamide protects soybean oil from ruminal biohydrogenation: effects of butylsoyamide on plasma fatty acids and nutrient digestion in sheep. Journal of Animal Science 73, 818823.
Jenkins, T. C. & Palmquist, D. L. (1984). Effect of fatty acids or calcium soaps on rumen and total nutrient digestibility of dairy rations. Journal of Dairy Science 67, 978986.
Just, A. (1982 a). The net value of crude fat for growing pigs. Livestock Production Science 9, 501509.
Just, A. (1982 b). The influence of crude fiber from cereals on the net energy value of diets for growth in pigs. Livestock Production Science 9, 569580.
Kemp, P., Lander, D. J. & Orpin, C. G. (1984). The lipids of the rumen fungus Piromonas communis. Journal of General Microbiology 130, 2737.
Lebret, B., Lefaucheur, L., Mourot, J. & Bonneau, M. (1996). Influence des facteurs d'élevage sur la qualité de la viande de porc (Effects of rearing factors on pig meat quality). In Journées de la Recherche Porcine en France vol. 28, pp. 137156. Paris: Institut Technique du Porc.
Lessire, M. (1995). Qualité des viandes de volaille: le rôle des matitères grasses alimentaires (Poultry meat quality: the role of dietary fats). INRA Productions Animules 8, 335340.
Lessire, M., Doreau, M. & Aumaître, A. (1996). Digestive and metabolic utilization of fats in domestic animals. In Oils and Fats Manual, A Comprehensive Treatise, pp. 703714 [Karleskind, A., editor]. Paris: Lavoisier Publishing Intercept.
Lessire, M. & Leclercq, B. (1982). Metabolisable energy value of fats in chicks and adult cockerels. Animal Feed Science and Technology 7, 365374.
Maczulak, A. E., Dehority, B. A. & Palmquist, D. L. (1981). Effect of long-chain fatty acids on growth of rumen bacteria. Applied and Environmental Microbiology 42, 856862.
Martin, B. & Coulon, J. B. (1995). Facteurs de production du lait et caractéristiques des fromages. I. Influence des facteurs de production sur l'aptitude à la coagulation des laits de troupeaux (Milk production and cheese characteristics. I. Influence of milk production conditions on herd milk clotting ability). Lait 75, 6180.
Melton, S. L. (1990). Effects of feeds on flavor of red meat: a review. Journal of Animal Science 68, 44214435.
Mietton, B. (1991). La standardisation des laits de fromagene (Standardization of cheese milk). In Proceedings of the XXIII International Dairy Congress, Montréal, vol. 3, pp. 18381863. Brussels: International Dairy Federation.
Middaugh, R. P., Baer, R. J., Casper, D. P., Schingoethe, D. J. & Seas, S. W. (1988). Characteristics of milk and butter from cows fed sunflower seeds. Journal of Dairy Science 71, 31793187.
Moore, J. H. & Christie, W. W. (1984). Digestion, absorption and transport of fats in ruminant animals. In Fats in Animal Nutrition, pp. 123149 [Wiseman, J., editor]. London: Butterworths.
Morgan, C. A., Noble, R. C., Cocchi, M. & McCartney, R. (1992). Manipulation of the fatty acid composition of pig meat lipids by dietary means. Journal of the Science of Food and Agriculture 58, 357368.
Mourot, J., Aumaître, A. & Mounier, A. (1992). Interaction entre vitamine E et acide linoléique sur la composition de la carcasse, la qualité et la conservation des lipides de la viande chez le porc (Interaction between dietary contents of vitamin E and linoleic acid on carcass composition and quality of lipids in stored pig meat). Sciences des Aliments 12, 743755.
Mourot, J., Peiniau, P. & Mounier, A. (1994). Effets de l'acide linoléique alimentaire sur l'activité des enzymes de la lipogenèse dans les tissus adipeux chez le porc (Effect of dietary linoleic acid on lipogenesis in adipose tissue of pig). Reproduction Nutrition Development 34, 213220.
Noble, R. C. (1996). Manipulating the fatty acid composition of pig and poultry products. Animal Science 73, 639 Abstr.
Opstvedt, J. (1984). Fish fats. In Fats in Animal Nutrition, pp. 5383 [Wiseman, J., editor]. London: Butterworths.
Ottou, J. F., Doreau, M. & Chilliard, Y. (1995). Duodenal infusion of rapeseed oil in midlactation cows. 6. Interaction with niacin on dairy performance and nutritional balance. Journal of Dairy Science 78, 13451352.
Ouhayoun, J., Kopp, J., Bonnet, M., Demarne, Y. & Delmas, D. (1987). Influence de la composition des graisses alimentaires sur les propriétés des lipides périrénaux et la qualité de la viande du lapin (Influence of dietary fat composition on rabbit perirenal lipids properties and meat quality). Science des Aliments 7, 521534.
Palmquist, D. L. (1988). The feeding value of fats. In Feed Science, pp. 293311 [Ørskov, E. R., editor]. Amsterdam: Elsevier.
Palmquist, D. L., Beaulieu, A. D. & Barbano, D. M. (1993). Feed and animal factors influencing milk fat composition. Journal of Dairy Science 76, 17531771.
Palmquist, D. L. & Jenkins, T. C. (1980). Fat in lactation rations: a review. Journal of Dairy Science 63, 114.
Palmquist, D. L., Jenkins, T. C. & Joyner, A. E. (1986). Effect of dietary fat and calcium source on insoluble soap formation in the rumen. Journal of Dairy Science 69, 10201025.
Palmquist, D. L. & Moser, E. A. (1981). Dietary fat effects on blood insulin, glucose utilization, and milk protein content of lactating cows. Journul of Dairy Science 64, 16641670.
Pennington, J. A. & Davis, L. (1975). Effects of intraruminal and intra-abomasal additions of cod-liver oil on milk fat production in the cow. Journal of Dairy Science 58, 4955.
Poste, L. M. (1990). A sensory perception of effects of feeds on flavor in meats: poultry meats. Journal of Animal Science 68, 44144420.
Remeuf, F., Cossin, V., Dervin, C., Lenoir, J. & Tomassone, R. (1991). Relations entre les caractéristiques physico-chimiques des laits et leur aptitude fromagère (Relationships between physico-chemical characteristics of milks and their cheese-making properties). Lait 71, 397421.
Roger, V., Fonty, G., Komisarczuk-Bony, S. & Gouet, P. (1990). Effects of physicochemical factors on the adhesion to cellulose Avicel of the ruminal bacteria Ruminococcus javefaciens and Fibrobacter succinogenes subsp. succinogenes. Applied and Environmental Microbiology 56, 30813087.
Schauff, D. J. & Clark, J. H. (1989). Effects of prilled fatty acids and calcium salts of fatty acids on rumen fermentation, nutrients digestibilities, milk production, and milk composition. Journal of Dairy Science 72, 917927.
Sheehy, P. J. A., Morrissey, P. A., Buckley, D. J. & Frigg, M. (1993). Lipid oxidation and dietary vitamin E supplementation in broilers. In Quality of Poultry Meat, pp. 380388 [Colin, P., Culioli, J. and Ricard, F. H., editors]. Tours, France: WPSA.
Smith, W. A., Harris, B. Jr, Van Horn, H. H. & Wilcox, C. J. (1993). Effects of forage type on production of dairy cows supplemented with whole cottonseed, tallow, and yeast. Journal of Dairy Science 76, 205215.
Stahly, T. S. (1984). Use of fats in diets for growing pigs. In Fats in Animal Nutrition, pp. 313331 [Wiseman, J., editor]. London: Butterworths.
St John, L. C., Young, C. R., Knabe, D. A., Thompson, L. D., Schelling, G. T., Grundy, S. M. & Smith, S. B. (1987). Fatty acid profiles and sensory and carcass traits of tissues from steers and swine fed an elevated monounsaturated fat diet. Journal of Animal Science 64, 14411447.
Storry, J. E., Brumby, P. E. & Dunkley, W. L. (1980). Influence of nutritional factors on the yield and content of milk fat: protected non-polyunsaturated fat in the diet. International Dairy Federation Bulletin 125, 105125.
Storry, J. E., Brumby, P. E., Hall, A. J. & Johnson, V. W. (1974). Response of the lactating cow to different methods of incorporating casein and coconut oil in the diet. Journal of Dairy Science 57, 6167.
Sukhija, P. S. & Palmquist, D. L. (1990). Dissociation of calcium soaps of long-chain fatty acids in rumen fluid. Journal of Dairy Science 73, 17841787.
Sundstøl, F. (1974). Hydrogenated marine fat as feed supplement. III. Digestibility of rations containing hydrogenated marine fat in sheep. Meldinger fra Norges Landbrukshogskole 161, 31 pp.
Tesfa, A. T., Tuori, M. & Syjala-Qvist, L. (1992). The influence of partial replacement of barley with dietary fat sources on growth and feed conversion efficiency of growing bulls. Agricultural Science in Finland 1, 267278.
Toullec, R. & Mathieu, C. M. (1969). Utilisation digestive des matières grasses et de leurs principaux acides gras par le veau préruminant à l'engrais; influence sur la composition corporelle (Digestive utilization of fats and their principal fatty acids by fattening preruminant calves. Influence on body composition). Annales de Biologie Animale, Biochimie et Biophysique 9, 139160.
Touraille, C., Valin, C., Aurousseau, B., Sornay, J. & Bayle, M. C. (1983). Influence du mode de production sur la qualité de la viande de veau (Influence of calf production system on the quality of veal). Bulletin Technique CRZV Theix, INRA 54, 4347.
Van der Honing, Y., Wieman, B. J., Steg, A. & Van Donselaar, B. (1981). The effect of fat supplementation of concentrates on digestion and utilization of energy by productive dairy cows. Netherlands Journal of Agricultural Science 29, 7992.
Van Nevel, C. J. & Demeyer, D. I. (1995). Lipolysis and biohydrogenation of soybean oil in the rumen in vitro: inhibition by antimicrobials. Journal of Dairy Science 78, 27972806.
Van Nevel, C. J. & Demeyer, D. I. (1996 a). Influence of pH on lipolysis and biohydrogenation of soybean oil by rumen contents in vitro. Reproduction Nutrition Development 36, 5363.
Van Nevel, C. J. & Demeyer, D. I. (1996 b). Effect of pH on biohydrogenation of polyunsaturated fatty acids and their Ca-salts by microorganisms in vitro. Archives of Animal Nutrition 49, 151158.
Vermorel, M., Sauvant, D. & Michalet-Doreau, B. (1986). Valeur énergétique des matitères grasses de la ration des vaches laitières (Energy value of dietary fats in dairy cows). Bulletin Technique CRZV Theix, INRA 66, 6773.
White, T. W., Grainger, R. B., Baker, F. H. & Stroud, J. W. (1958). Effect of supplemental fat on digestion and the ruminal calcium requirement of sheep. Journal of Animal Science 17, 797803.
Willett, W. C., Stampfer, M. J., Manson, J. E., Colditz, G. A., Speizer, F. E., RosnerB. A, B. A,, Sampson, L. A. & Hennekens, C. H. (1993). Intake of trans fatty acids and risk of coronary heart disease among women. Lancet 341, 581585.
Wiseman, J. (1984). Assessment of the digestible and metabolizable energy of fats for non-ruminants. In Fats in Animal Nutrition, pp. 277297 [Wiseman, J., editor]. London: Butterworths.
Wong, N. P., Walter, H. E., Vestal, J. H., Lacroix, D. E. & Alford, J. A. (1973). Cheddar cheese with increased polyunsaturated fatty acids. Journal of Dairy Science 56, 12711275.
Wong, W., Jelen, P. & Deman, J. M. (1982). Softening of butter related to feeding low doses of protected tallow supplement. Journal of Dairy Science 65, 16321638.
Wood, J. D. (1984). Fat deposition and the quality of fat tissue in meat animals. In Fats in Animal Nutrition, pp. 407435 [Wiseman, J., editor]. London: Butterworths.
Wood, J. D., Buxton, P. J., Whittington, F. M. & Enser, M. (1986). The chemical composition of fat tissues in the pig: effects of castration and feeding treatment. Livestock Production Science 15, 7382.
Wood, R. D., Bell, M. C., Grainger, R. B. & Teekel, R. A. (1963). Metabolism of labelled linoleic-1-14 C acid in the sheep rumen. Journal of Nutrition 79, 6268.
Wu, Z. & Huber, J. T. (1994). Relationship between dietary fat supplementation and milk protein concentration in lactating cows: a review. Livestock Production Science 39, 141155.
Zinn, R. A. (1989). Influence of level and source of dietary fat on its comparative feeding value in finishing diets for feedlot steers: metabolism. Journal of Animal Science 67, 10381049.
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British Journal of Nutrition
  • ISSN: 0007-1145
  • EISSN: 1475-2662
  • URL: /core/journals/british-journal-of-nutrition
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