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N-氨甲酰谷氨酸与牛磺酸对公猪精液品质、血清激素指标及精浆抗氧化能力的影响

DOI: 10.3969/j.issn.1006-267x.2015.10.018

Keywords: N-氨甲酰谷氨酸,牛磺酸,精液品质,血清激素,抗氧化能力

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Abstract:

本试验旨在研究饲粮添加N-氨甲酰谷氨酸(NCG)与牛磺酸(Tau)对公猪精液品质、血清激素指标、精浆蛋白含量及抗氧化能力的影响。选取18月龄、体重相近的健康大约克公猪20头,随机分为4组,每组5个重复,每个重复1头猪。各组分别饲喂基础饲粮(对照组)、基础饲粮+0.2%NCG(NCG组)、基础饲粮+0.6%牛磺酸(Tau组)、基础饲粮+0.2%NCG+0.6%牛磺酸(NCG+Tau组)。试验期100d。结果表明:1)试验56~100d,与对照组比较,饲粮中添加NCG、Tau及NCG+Tau公猪射精反应时间极显著降低(P<0.01),射精持续时间极显著提高(P<0.01)。主效应分析结果表明,试验56~100d,饲粮中添加NCG可显著提高采精量(P<0.05),饲粮中添加Tau或Tau+NCG可显著提高精子活力(P<0.05),饲粮中添加NCG可显著降低精子畸形率(P<0.05);2)试验56~100d,与对照组比较,饲粮中添加NCG或NCG+Tau可极显著提高血清促卵泡素(FSH)含量(P<0.01),饲粮中添加NCG+Tau可极显著提高血清黄体生成素(LH)和睾酮(T)含量(P<0.01)。3)主效应分析结果表明,饲粮中添加NCG后精浆总蛋白(TP)含量显著提高(P<0.05),饲粮中添加Tau后精浆白蛋白(ALB)含量显著提高(P<0.05)。4)主效应分析结果表明,试验56~100d,饲粮中添加NCG可显著提高精浆总抗氧化能力(T-AOC)和谷胱甘肽过氧化物酶(GSH-Px)活性(P<0.05),饲粮中添加NCG或Tau后精浆超氧化物歧化酶(SOD)活性显著提高(P<0.05)。综合分析,饲粮中添加NCG与Tau可调控公猪血清激素分泌水平,提升性欲,提高精浆蛋白含量和抗氧化能力,从而提高精液品质。

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