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黄花蒿提取物对奶山羊乳腺动静脉血脂肪酸组成的影响

DOI: 10.3969/j.issn.1006-267x.2011.11.013

Keywords: 奶山羊,黄花蒿提取物,阴外动脉,乳静脉,共轭亚油酸

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Abstract:

本试验旨在研究黄花蒿乙醇提取物对奶山羊乳腺阴外动脉血和乳静脉血中共轭亚油酸(CLA)等脂肪酸含量的影响。选用9只健康、体重(38±3)kg的泌乳期关中奶山羊,随机分为3组,每组3只羊,对照组、Ⅰ组和Ⅱ组奶山羊分别饲喂0、7.26和12.10g/d黄花蒿乙醇提取物。经预试期30d后,分别在奶山羊乳腺阴外动脉和乳静脉于饲喂后0、3、6和9h采集血液,测定脂肪酸组成。结果表明:乳腺组织能够合成顺9-油酸(c9C18∶1)和CLA,而不能合成亚油酸(C18∶2)、亚麻酸(C18∶3)、反11-油酸(t11C18∶1)和硬脂酸(C18∶0);黄花蒿提取物增加了动静脉血中t11C18∶1、CLA和c9C18∶1的含量,降低了C18∶2含量。结果提示,黄花蒿提取物能够促进乳腺合成CLA和其前体物。

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