酵母多糖对鲤鱼抗氧化能力的影响

来源 :江西水产科技 | 被引量 : 0次 | 上传用户:kongct_2006
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在鲤鱼饵料中添加不同水平的酵母多糖,研究对其抗氧化功能的影响.试验选取400尾整齐规格、体质量相近、健康的鲤鱼随机分为4组,每组包含10个重复,每个重复10尾鲤鱼.对照组鲤鱼饲喂基础饵料,试验1组、试验2组、试验3组鲤鱼分别饲喂含有0.5 g/kg、1.0 g/kg、1.5 g/kg的酵母多糖的基础饵料,预试验7天,正式试验30天.试验结束测定鲤鱼机体的抗氧化功能指标.结果表明:试验2组和试验3组鲤鱼血清中的总抗氧化能力显著高于对照组,分别比对照组提高了32.70%、39.34%(P0.05).试验2组和试验3组鲤鱼血清中的超氧化物歧化酶活性比对照组和试验1组显著提高,比对照组分别显著提高了11.71%,18.98%(P<0.05);比试验1组分别显著提高了7.36%,14.34%(P<0.05).试验1组、试验2组、试验3组鲤鱼血清中丙二醛含量极显著低于对照组,分别比对照组降低了25.66%、38.01%、51.56%(P0.05).在鲤鱼饵料中添加1.0~1.5 g/kg的酵母多糖可以显著增强鲤鱼机体的抗氧化功能,考虑经济效益,建议酵母多糖的添加量为1.0 g/kg.
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