Affordable Access

Publisher Website

Milk fat chemical composition of yak breeds in China

Journal of Food Composition and Analysis
Publication Date
DOI: 10.1016/j.jfca.2010.07.008
  • Yak Breeds
  • Yak Crossbreeds
  • Milk
  • Fatty Acid
  • Conjugated Linoleic Acids
  • Cholesterol
  • Food Composition
  • Food Analysis


Abstract The present study was undertaken to evaluate the fatty acid composition, conjugated linoleic acid (CLA) and cholesterol contents in the milk from three yak breeds, Maiwa yak ( n = 24), Zhongdian yak ( n = 16) and Gannan yak ( n = 16) and two yak crossbreeds, Maiwa yak × yellow cattle ( n = 16) and Gannan yak × yellow cattle ( n = 16). Statistically significant differences ( P < 0.05) in the proportions of individual milk fatty acids were observed among the three yak breeds. The proportion of saturated fatty acids (SFAs) and monounsaturated fatty acids (MUFAs) did not differ statistically ( P > 0.05) among the three yak breeds. However, the percentage of total polyunsaturated fatty acids (PUFAs) in Zhongdian yak milk (4.82%) was significantly higher ( P < 0.01) than in Maiwa (3.99%) and Gannan (3.68%) yak milks. The contents of α-linolenic acid (C18:3) and cis-9, trans-11 conjugated linoleic acid (CLA) were significantly different ( P < 0.05) among the three yak breeds. The total SFAs, MUFAs and PUFAs were not significantly different ( P > 0.05%) between the two yak crossbreeds. The cholesterol contents in milk samples from yak breeds and yak crossbreeds were found to be in the range 12.32–16.17 mg/100 g. Cholesterol contents in milk samples from yak breeds and yak crossbreeds were positively correlated with their fat contents.

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

Impact of region on the composition of milk fatty...

on Journal of the Science of Food... Aug 30, 2013

Effect of cattle breeds on milk composition and te...

on Asian-Australasian journal of... June 2013

The Chemical Composition and Nitrogen Distribution...

on International Journal of Molec... Jan 01, 2011
More articles like this..