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SHORT COMMUNICATION: Effects of duodenal infusion of increasing amounts of alpha-linolenic acid on composition and susceptibility to peroxidation of blood lipids in lactating dairy cows
2015-09-02 16:06     (点击次数:)

Sun P, Wang JQ, Liu QS, Khas-Erdene, Yang G

Canadian Journal of Animal Science,2012,92(2):219-223.

Abstract:Duodenal infusion of increasing amounts of cc-linolenic acid (LNA) in dairy cows linearly decreased the percentages of 18:0, 18:2n-6 and saturated fatty acids(P<0.01), linearly and quadratically reduced 23:0 and 18:1 cis-9(P<0.01), but linearly increased the content of 18:3 n-3 and PUFA(P<0.01) in blood plasma. As amount infused increased, concentrations of high-density lipoprotein cholesterol and total cholesterol increased quadratically and peaked at 139.9 mg dL(-1) and 182.0 mg dL(-1), respectively(P<0.01). No differences were observed in the activity of blood serum total superoxide dismutase and total antioxidant capacity, but the thiobarbituric acid reactive substances tended (P=0.07) to increase linearly. Duodenally infused increasing amounts of LNA altered the composition of fatty acids and distribution of lipids in blood, but did not affect the oxidative stability of the blood in dairy cows.

Keywords:alpha-Linolenic acid; bloodlipid; oxidation stability

原文链接:http://www.medsci.cn/sci/show_paper.asp?id=d0b03268556

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