Effect of substituting fresh-cut perennial ryegrass with fresh-cut white clover on bovine milk fatty acid profile


Stergiadis S., Hynes D. N. , Thomson A. L. , Kliem K. E. , Berlitz C. G. B. , Gunal M., ...More

JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, vol.98, no.10, pp.3982-3993, 2018 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 98 Issue: 10
  • Publication Date: 2018
  • Doi Number: 10.1002/jsfa.8991
  • Title of Journal : JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
  • Page Numbers: pp.3982-3993

Abstract

BACKGROUNDIncluding forage legumes in dairy systems can help address increasing environmental/economic concerns about perennial ryegrass monoculture pastures. This work investigated the effect of substituting fresh-cut grass with increasing quantities of fresh-cut white clover (WC) on milk fatty acid (FA) profile and transfer efficiency of dietary linoleic (LA) and -linolenic (ALNA) acids to milk fat. Three groups of three crossbred dairy cows were used in a 3x3 crossover design. Dietary treatments were 0gkg(-1) WC+600gkg(-1) grass, 200gkg(-1) WC+400gkg(-1) grass, and 400gkg(-1) WC+200gkg(-1) grass. All treatments were supplemented with 400gkg(-1) concentrates on a dry matter basis. Cows had a 19-day adaptation period to the experimental diet before a 6-day measurement period in individual tie stalls.