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饲粮中添加甜菜碱对断奶仔猪生长性能和血清生化指标的影响

DOI: 10.3969/j.issn.1006-267x.2012.06.013

Keywords: 甜菜碱,断奶仔猪,生长性能,血清代谢

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Abstract:

本试验旨在研究饲粮中添加甜菜碱对断奶仔猪生长性能和血清生化指标的影响。选用体重(7.12±0.11)kg断奶后1周的"杜×长×大"仔猪160头,随机分为4组,每组4个重复,每个重复10头。对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮上添加600、900、1200mg/kg甜菜碱的试验饲粮。试验期28d。结果表明,饲粮中添加甜菜碱能够显著提高仔猪的平均日采食量和平均日增重(P<0.05),显著增加血清生长激素和胰岛素样生长因子Ⅰ的含量(P<0.05)。600mg/kg甜菜碱显著降低了血清尿素氮和低密度脂蛋白含量(P<0.05)。但饲粮中添加甜菜碱对血清中总蛋白、白蛋白、甘油三酯、胆固醇、高密度脂蛋白含量和代谢酶的活性无显著影响(P>0.05)。由此可见,饲粮中添加甜菜碱可以提高断奶仔猪的生长性能,促进蛋白质的沉积和脂肪代谢,其中以添加量600mg/kg效果最好。

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