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过瘤胃胆碱对黔北麻羊羔羊生长性能及血浆生化指标的影响

DOI: 10.3969/j.issn.1006-267x.2014.09.050

Keywords: 过瘤胃胆碱,生长性能,血浆生化指标,黔北麻羊羔羊

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Abstract:

本试验旨在研究补饲过瘤胃胆碱(RPC)对黔北麻羊羔羊生长性能及血浆生化指标的影响。选取体况良好、体重相近的4月龄黔北麻羊羔羊20只随机分为对照组[(15.89±1.66)kg]和试验组[(15.30±1.86)kg]和试验组,每组10只。对照组饲喂基础饲粮,试验组补饲10g/d的RPC。试验期40d,其中预试期10d,正试期30d。结果表明,补饲RPC:1)显著提高干物质采食量全期平均值(P<0.05),显著降低料重比(P<0.05);2)对干物质、粗蛋白质、粗脂肪、中性洗涤纤维的表观消化率无显著影响(P>0.05),但可显著提高酸性洗涤纤维、粗灰分的表观消化率(P<0.05);3)可显著提高食入氮、吸收氮和沉积氮(P<0.05);4)对血浆超氧化物歧化酶活性以及丙二醛、葡萄糖、尿素氮、极低密度脂蛋白、甘油三酯、总胆固醇、肌酐浓度的全期平均值均无显著影响(P>0.05)。在本试验条件下,补饲10g/d的RPC可提高黔北麻羊羔羊生长性能,但对血浆生化指标没有显著影响。

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