期刊
FOOD CHEMISTRY
卷 217, 期 -, 页码 750-755出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.08.134
关键词
Conjugated linoleic acids; n-3 fatty acids; Organic; Summer annuals; Warm-season grasses
The demand for dairy products from grass-fed cows is driven, in part, by their more desirable fatty acid (FA) profile, containing more n-3 FA and conjugated linoleic acids (CIA) than conventionally produced dairy products. This study investigated the effects of pearl millet (PM) vs. cool-season pasture (CSP) on animal performance and milk FA in a grazing system. Eight Holstein dairy cows were used in a repeated measures design with four-week periods. Forage type had no effect on animal performance (estimated dry matter intake, milk production, fat, or protein). The contents of CIA and n-3 FA in a serving of whole milk (3.25% fat) increased when cows grazed CSP compared to PM. A serving of whole milk from cows grazing PM had a higher content of saturated FA and branched-chain FA. In conclusion, the contents of various bioactive FA were higher in milk fat of cows grazing a CSP compared to PM. (C) 2016 Elsevier Ltd. All rights reserved.
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