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热处理大豆分离蛋白质饲粮对肉鸡胰腺功能的影响

DOI: 10.3969/j.issn.1006-267x.2014.07.028

Keywords: 大豆分离蛋白质,热处理,肉鸡,胰腺功能

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Abstract:

本试验旨在探讨热处理大豆分离蛋白质饲粮对肉鸡胰腺功能的影响。选用1日龄爱拔益加(AA)肉鸡320只,随机分为4个组,每组8个重复,每个重复10只,分别饲喂4种饲粮:正常大豆分离蛋白质饲粮(对照组),100℃热处理1、4及8h的大豆分离蛋白质饲粮,试验期为21d。结果表明:与对照组相比,各热处理大豆分离蛋白质饲粮对14日龄肉鸡胰腺功能相关指标均无显著影响(P>0.05);21日龄,各热处理大豆分离蛋白质饲粮均显著提高了肉鸡胰腺的相对重量(P<0.05),热处理8h大豆分离蛋白质饲粮使肉鸡胰腺胰蛋白酶和蛋白酶活性显著降低(P<0.05);热处理8h组肉鸡胰腺丙二醛含量显著升高(P<0.05),氧化型谷胱甘肽含量有升高趋势(P=0.065),但总抗氧化能力(P=0.058)及过氧化氢酶(P=0.064)、谷胱甘肽还原酶(P=0.061)活性有降低的趋势;此外,热处理8h大豆分离蛋白质饲粮使胰腺中还原型谷胱甘肽/氧化型谷胱甘肽和谷胱甘肽过氧化物酶活性显著下降(P<0.05)。试验结果提示,摄食热处理大豆分离蛋白质饲粮一定时间后会对肉鸡胰腺功能产生负面作用。

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