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S. Carroll, E. Depeters, S. Taylor, M. Rosenberg, H. Perez-Monti, V. Capps (2006)
Milk composition of Holstein, Jersey, and Brown Swiss cows in response to increasing levels of dietary fatAnimal Feed Science and Technology, 131
H. Soyeurt, P. Dardenne, A. Gillon, C. Croquet, S. Vanderick, P. Mayeres, C. Bertozzi, N. Gengler (2006)
Variation in fatty acid contents of milk and milk fat within and across breeds.Journal of dairy science, 89 12
(2004)
Die chemische Untersuchung von Futtermitteln
D. Palmquist, J. Griinari (2006)
Milk fatty acid composition in response to reciprocal combinations of sunflower and fish oils in the dietAnimal Feed Science and Technology, 131
Y. Chilliard, A. Ferlay (2004)
Dietary lipids and forages interactions on cow and goat milk fatty acid composition and sensory properties.Reproduction, nutrition, development, 44 5
Dale Bauman, J. Griinari (2003)
Nutritional regulation of milk fat synthesis.Annual review of nutrition, 23
F. Leiber, M. Kreuzer, H. Leuenberger, H. Wettstein (2006)
Contribution of diet type and pasture conditions to the influence of high altitude grazing on intake, performance and composition and renneting properties of the milk of cowsAnimal Research, 55
J. Kelsey, B. Corl, R. Collier, D. Bauman (2003)
The effect of breed, parity, and stage of lactation on conjugated linoleic acid (CLA) in milk fat from dairy cows.Journal of dairy science, 86 8
M. Collomb, A. Schmid, R. Sieber, D. Wechsler, E. Ryhänen (2006)
Conjugated linoleic acids in milk fat : Variation and physiological effectsInternational Dairy Journal, 16
B. Suter, K. Grob, B. Pacciarelli (1997)
Determination of fat content and fatty acid composition through 1-min transesterification in the food sample; principlesZeitschrift für Lebensmitteluntersuchung und -Forschung A, 204
E. Engel, A. Ferlay, A. Cornu, Y. Chilliard, C. Agabriel, G. Biélicki, B. Martin (2007)
Relevance of isotopic and molecular biomarkers for the authentication of milk according to production zone and type of feeding of the cow.Journal of agricultural and food chemistry, 55 22
S. Henauw, J. Camp, G. Sturtewagen, C. Matthys, M. Bilau, N. Warnants, K. Raes, M. Oeckel, S. Smet (2007)
Simulated changes in fatty acid intake in humans through n-3 fatty acid enrichment of foods from animal originJournal of the Science of Food and Agriculture, 87
R. Dewhurst, K. Shingfield, Michael Lee, N. Scollan (2006)
Increasing the concentrations of beneficial polyunsaturated fatty acids in milk produced by dairy cows in high-forage systemsAnimal Feed Science and Technology, 131
S. White, J. Bertrand, M. Wade, S. Washburn, James Green, T. Jenkins (2001)
Comparison of fatty acid content of milk from Jersey and Holstein cows consuming pasture or a total mixed ration.Journal of dairy science, 84 10
Xing-Tai Han, A. Xie, Xi-Chao Bi, Shu-Jie Liu, Ling-Hao Hu (2003)
Effects of altitude, ambient temperature and solar radiation on fasting heat production in yellow cattle (Bos taurus)British Journal of Nutrition, 89
H. Hess, L. Monsalve, C. Lascano, J. Carulla, T. Diaz, M. Kreuzer (2003)
Supplementation of a tropical grass diet with forage legumes and Sapindus saponaria fruits: effects on in vitro ruminal nitrogen turnover and methanogenesisCrop & Pasture Science, 54
P. Soest, J. Robertson, B. Lewis (1991)
Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition.Journal of dairy science, 74 10
(1976)
ISO 2446: Milk -Determination of Fat Content (Routine Method)
H. Wettstein, M. Scheeder, F. Sutter, M. Kreuzer (2001)
Effect of lecithins partly replacing rumen-protected fat on fatty acid digestion and composition of cow milkEuropean Journal of Lipid Science and Technology, 103
K. Bartl, C. Gómez, T. Aufdermauer, M. Garcia, M. Kreuzer, H. Hess, H. Wettstein (2009)
Effect of diet type on performance and metabolic traits of Peruvian local and introduced cow types kept at 200 and 3600 m of altitudeLivestock Science, 122
G. Bobe, G. Lindberg, A. Freeman, D. Beitz (2007)
Short communication: Composition of milk protein and milk fatty acids is stable for cows differing in genetic merit for milk production.Journal of dairy science, 90 8
(2004)
Methodenbuch Vol
J. Kraft, M. Collomb, P. Möckel, R. Sieber, G. Jahreis (2003)
Differences in CLA isomer distribution of cow's milk lipidsLipids, 38
Y. Chilliard, F. Glasser, A. Ferlay, L. Bernard, J. Rouel, M. Doreau (2007)
Diet, rumen biohydrogenation and nutritional quality of cow and goat milk fatEuropean Journal of Lipid Science and Technology, 109
(2001)
Nutrient requirements of dairy cattle. 7th rev
A. Ferlay, B. Martin, P. Pradel, J. Coulon, Y. Chilliard (2006)
Influence of grass-based diets on milk fatty acid composition and milk lipolytic system in Tarentaise and Montbeliarde cow breeds.Journal of dairy science, 89 10
J. Kay, W. Weber, C. Moore, Dale Bauman, Leslie Hansen, H. Chester-Jones, B. Crooker, L. Baumgard (2005)
Effects of week of lactation and genetic selection for milk yield on milk fatty acid composition in Holstein cows.Journal of dairy science, 88 11
F. Leiber, M. Kreuzer, D. Nigg, H. Wettstein, Martin Scheeder (2005)
A study on the causes for the elevated n−3 fatty acids in cows' milk of alpine originLipids, 40
H. Boufaïed, P. Chouinard, G. Tremblay, H. Petit, R. Michaud, G. Bélanger (2003)
Fatty acids in forages. II. In vitro ruminal biohydrogenation of linolenic and linoleic acids from timothyCanadian Journal of Animal Science, 83
(2003)
Condiciones estructurales, evolucio´n (1990-2000) y perspectivas
(2001)
Estudio de dos pares de genes en la a-lactoalbumina y b-lactoglobulina en el ganado vacuno Holstein, Brown Swiss y Criollo en la cuenca central del Peru
M. Collomb, Tina Bühle (2000)
Analyse de la composition en acides gras de la graisse de lait. I. Optimisation et validation d'une méthode générale à haute résolution, 91
(1999)
Statistical Analysis Systems)
C. Bugaud, S. Buchin, J. Coulon, A. Hauwuy, D. Dupont (2001)
Influence of the nature of alpine pastures on plasmin activity, fatty acid and volatile compound composition of milkLait, 81
J. Griinari, B. Corl, S. Lacy, P. Chouinard, K. Nurmela, D. Bauman (2000)
Conjugated Linoleic Acid Is Synthesized Endogenously in Lactating Dairy Cows by Δ9-DesaturaseJournal of Nutrition, 130
(1974)
Untersuchungen u¨ber den Einfluss der Luftverdu¨nnung auf einige physiologische Gro¨ssen von Ku¨hen sowie auf die Menge und Beschaffenheit der Milch
Two identical experimental protocols were followed at 200 and 3,600 m above sea level (a.s.l.) determining the changes of the milk fatty acid (FA) profile of Brown Swiss (BS) and indigenous Peruvian Criollo cows (CR) as a response to diets which were designed to cover the variation in feed quality caused by season. At each site (altitude), six BS and six CR cows, adapted to >3,500 m a.s.l., were fed three dietary treatments (DS, dry-season forage; RS rainy-season forage; OC, diet optimised to meet the cow's requirements) in a 2 × 2 × 3-factorial arrangement. Intakes of FA and milk yield increased from diet DS (low quality diet) to RS and OC (high quality diet) for both cow types. Milk fat proportions of conjugated linoleic acid (CLA), C18:3 c9,c12,c15, total n-3 and polyunsaturated FA (PUFA) were highest (p < 0.05) with diet OC and higher in the lowlands than in the highlands. Low intakes of diet DS obviously resulted in a ruminal energy deficiency and body lipid mobilisation. The ruminal energy deficiency with diet DS was especially pronounced in BS, apparently reducing biohydrogenation rate and leading to lower proportions of C18:0 and higher proportions of C18:3 c9,c12,c15 in milk fat (p < 0.05). Especially C18:3 c9,c12,c15 intake did not concur with its proportion in milk fat, suggesting a strong dependence on energy status. Milk yield and FA excretion with milk were higher for BS than for CR (p < 0.05) with all three diets although milk fat content was lower (p < 0.05) for BS than CR. Milk fat of BS was richer in CLA and PUFA than milk fat of CR (p < 0.05). The desaturase indices for 18 FA were also higher for BS than CR (p < 0.05), suggesting a slightly higher Δ9-desaturase activity for BS, especially with diet DS. Milk fat content was generally higher at the high altitude than at the lowland site (p < 0.05), whereas the FA profile was unexpectedly similar across sites. Various interactions were found among diet type, cow type and altitude (site) indicating that a combination of these factors contributes to the characteristic FA profile of the respective milk.
Archives of Animal Nutrition – Taylor & Francis
Published: Dec 1, 2008
Keywords: dairy cows; milk fat; altitude; n-3 fatty acids; conjugated linoleic acid; desaturation
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