Italian Journal of Animal Science (Jan 2010)

Inclusion of fresh forage in the ration for dairy cows: effects on CLA and trans C18:1 isomers content of milk fat

  • P. Secchiari,
  • M. Antongiovanni,
  • M. Mele,
  • M. Del Viva,
  • A. Serra

DOI
https://doi.org/10.4081/ijas.2005.2s.227
Journal volume & issue
Vol. 4, no. 2s
pp. 227 – 229

Abstract

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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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