References
- Bauman D.E., Griinari J.M., 2001. Regulation and nutritional manipulation of milk fat: low-fat milk syndrome. Livest. Prod. Sci. 70, 15–30.
- AOAC, 1990. Official Methods of Analysis of the AOAC.15th Ed., Association of Official Analytical Chemists, Arlington, VA, USA.
- Buccioni A., Antongiovanni M., Petacchi F., Mele M., Serra A., Secchiari P., Benvenuti D. 2006. Effect of dietary fat quality on C18:1 fatty acids and conjugated linoleic acid production: an in vitro rumen fermentation study. Anim. Feed Sci. Technol. 127, 268–282.
- Kramer, J.K.G., Fellner, V., Dugan, M.E.R., Sauer, F.D., Mossoba, M.M., Yurawecz, M.P., 1997. Evaluating acid and base catalysts in the methylation of milk and rumen fatty acids with special emphasis on conjugated dienes and total trans fatty acids. Lipids. 32, 1219–1228.
- Mele M., Buccioni A., Petacchi F., Serra A., Banni S., Antongiovanni M., Secchiari P. 2006. Effect of forage/concentrate ratio and soy bean oil supplementation on milk yield and composition from Sarda ewes. Anim. Res. 55, 273–285.
- SAS User’s Guide: Statistics, Version 8.0 Edition, 1999. SAS Inst. Inc., Cary, NC.
- Van Soest, P.J., Robertson, J.B., Lewis, B.A., 1991. Methods for dietary fiber, neutral detergent fiber, and non starch polysaccharides in relation to animal nutrition. J. Dairy Sci. 74, 3583–3597.
- Licitra, G., 1996. Standardization of procedures for nitrogen fractionation of ruminant feed. Anim. Feed Sci. Technol. 57: 347–358.