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葡萄籽提取物对蛋鸡生产性能和蛋黄胆固醇含量的影响

DOI: 10.3969/j.issn.1006-267x.2013.09.021

Keywords: 葡萄籽提取物,产蛋鸡,生产性能,蛋品质,胆固醇

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Abstract:

本试验旨在研究饲粮中添加葡萄籽提取物(GSE)对蛋鸡生产性能和蛋黄胆固醇含量的影响。选用450羽40周龄罗曼白蛋鸡,随机分为6个组:空白对照组,饲喂基础饲粮;阳性对照组,在基础饲粮中添加125mg/kg的铜(Cu);其他4组在基础饲粮中分别添加100、200、400和800mg/kg的GSE。每组5个重复,每个重复15羽鸡。预试期7d,正试期42d。结果表明:1)与空白对照组相比,饲粮中添加800mg/kgGSE显著降低了平均日采食量(P<0.05),但对平均蛋重无显著影响(P>0.05),添加100mg/kgGSE极显著提高了产蛋率(P<0.01)、显著降低了料蛋比(P<0.05);添加125mg/kgCu显著降低了产蛋率(P<0.05),显著增加了料蛋比(P<0.05)。2)与空白对照组相比,饲粮中添加400、800mg/kgGSE显著增加了蛋壳厚度(P<0.05),添加800mg/kgGSE显著增加了蛋白高度(P<0.05),但添加GSE对蛋壳强度、蛋黄颜色和哈夫单位均无显著影响(P>0.05)。3)与空白对照组相比,GSE各组和Cu125mg/kg组的蛋黄胆固醇含量均显著或极显著降低(P<0.05或P<0.01),其中Cu125mg/kg、GSE100和200mg/kg组间无显著差异(P>0.05)。由此可知,与饲粮中添加高Cu相比,添加100mg/kgGSE不仅显著降低了鸡蛋中胆固醇含量,同时显著提高了产蛋率。

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