Inclusion of fresh forage in the ration for dairy cows: effects on CLA and trans C18:1 isomers content of milk fat
2010
P. Secchiari | M. Antongiovanni | M. Mele | M. Del Viva | A. Serra
Milk fat is the richest natural source of conjugated linoleic acid (CLA) isomers. The 9-cis, 11-trans CLA isomer (rumenic acid, RA) origins from two pathways: as an intermediate of the rumen biohydrogenation process of linoleic acid or as the product of the activity of mammary Stearoyl Co-A desaturase enzyme (SCD) with trans-11, C18:1 (vaccenic acid, VA) as the precursor, another intermediate in the biohydrogenation of linoleic and linolenic acid.
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