Digestion and metabolism of dietary fat in farm animals
1997/07/01 by Michel Doreau, Yves Chilliard · 25 citations
Agricultural and Biological Sciences · Nursing · Biochemistry, Genetics and Molecular Biology · #Ruminant Nutrition and Digestive Physiology #Fatty Acid Research and Health #Genetic and phenotypic traits in livestock
paper · pdf · doi:10.1079/bjn19970132
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 nonruminant body FA.
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