Cattle Conjugated linoleic acid

Poulson, C. S., Dhiman, T. R., Ure, A. L., Comforth, D., Olson, K. C. (2004). Conjugated linoleic acid content of beef from cattle fed diets containing high grain, CLA, or raised on forages. Livestock Production Science, 91, 117—128. 

Gillis, M.H., S.K. Duckett, and J.R. Sackmann. Effects of Supplemental Rumen-Protected Conjugated Linoleic Acid or Corn Oil on Fatty Acid Composition of Adipose Tissues in Beef Cattle. / Anim. Sci. 82 1419-1427 (2004). 

Shantha, N.C., Moody, W.G., and Tabeidi, Z. (1997) Conjugated Linoleic Acid Concentrations in Semimembranosus Muscle of Grass- and Grain-Fed and Zeranol-Implanted Beef Cattle, J. Muscle Foods 8, 105—110. 

Beaulieu, A.D., Drackley, J.K., and Merchen, N.R. (2002) Concentrations of Conjugated Linoleic Acid (cis-9, frans-ll-Octadecadienoic Acid) Are Not Increased in Tissue Lipids of Cattle Eed a High Concentrate Diet Supplemented with Soybean OU, J. Anim. Sci. 80, 847-861. 

Mir, Z., Paterson, L.J., and Mir, P.S. (2000) Fatty Acid Composition and Conjugated Linoleic Acid Content of Intramuscular Fat in Crossbred Cattle with and Without Wagyu Genetics Fed a Barley-Based Diet, Can. J. Anim. Sci. 80, 195-197. 

Huang, Y., Bradford, B., Heig, N., Young, J., and Beitz, D. (2001) Feeding Dairy Cattle to Increase the Content of Conjugated Linoleic Acid in Milk, J. Dairy Sci. 84 (Suppl. 7), 310. 

In ruminates, replacing soy meal with Camelina meal (2.04 kg of dry matter (DM)) in beef steer diets results in a marked reduction in stress response hormones (Cappellozza et al., 2012). Further, no changes in thyroid function are noted, but this meal reduces acute-phase reactive protein reaction, which is known to increase when cattle are transported or when cattle are introduced to a feedlot setting (Cappellozza et al., 2012). These results are indicative of a positive impact of Camelina meal in reducing stress response in cattle. In dairy cows, Camelina meal (2 kg of DM) results in a marked decrease in milk fat without an impact on total milk production (Hurtaud and Peyraud, 2007). Interestingly, inclusion of Camelina meal results in a marked increase in trans fatty acids, t-10 18 1 and t- 18 1, 11- and 2.6-fold, respectively, and a marked sevenfold increase in c-9, t-11 18 2 (conjugated linoleic acid). This may account for the enhanced spreadabiUty of butter made from milk derived from Camelina meal-fed cows (Hurtaud and Peyraud, 2007). Hence, in a limited number of studies, Camelina meal is observed to have a number of positive effects on the health of cattle, as well as in the parameters associated with milk production and quality. 

---