Abstract
Extensive biohydrogenation of dietary fatty acids (FA) occurs in the rumen of dairy cattle, giving rise to a high proportion of saturated FA in milk fat. Saturated FA may contribute to increased risks of cardiovascular disease and the metabolic syndrome (Williams, 2000). Saturated FA, as well as several mono-unsaturated FA, can be desaturated by ¿9-desaturase, also known as stearoyl-CoA desaturase (SCD), present in the mammary gland of dairy cows. It is known that nutrition, especially polyunsaturated FA (PUFA), can affect the expression of SCD in rodents (Ntambi, 1999). Although various FA have been identified which can affect mammary SCD expression in dairy cattle, such knowledge is limited compared with rodents. Therefore, the objective of this study was to investigate
the effect of dietary FA supplementation of C18:1 cis-9, C18:2 cis-9,12 or C18:3 cis-9,12,15, by feeding rapeseed oil, soybean oil or linseed oil respectively, or its mixture, on SCD expression in the mammary gland of dairy cows.
Original language | English |
---|---|
Title of host publication | XIth International Symposium on Ruminant Physiology, Clermont-Ferrand, France, 6 - 9 September, 2009 |
Editors | Y. Chilliard, F. Glasser, Y. Faulconnier, F. Bocquier, I. Veissier, M. Doreau |
Place of Publication | Wageningen |
Publisher | Wageningen Academic Publishers |
Pages | 544-545 |
Publication status | Published - 2009 |
Event | Ruminant Physiology, Digestion, Metabolism and Effects of Nutrition on Reproduction and Welfare - Duration: 6 Sep 2009 → 9 Sep 2009 |
Conference
Conference | Ruminant Physiology, Digestion, Metabolism and Effects of Nutrition on Reproduction and Welfare |
---|---|
Period | 6/09/09 → 9/09/09 |