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饲粮添加短乳杆菌对生长猪生长性能和血清生化指标的影响

DOI: 10.3969/j.issn.1006-267x.2013.01.023

Keywords: 短乳杆菌,生长猪,生长性能,血清生化指标

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Abstract:

本试验旨在研究饲粮中添加短乳杆菌(Lactobacillusbrevis)对生长猪生长性能和血清生化指标的影响。选择108头平均体重为(24.49±1.61)kg的(70±2)日龄"杜×长×大"三元杂交生长猪,按性别、体重和窝源基本一致原则随机分为3组,每组3个重复,每个重复12头猪。3组猪分别饲喂基础饲粮(对照组)、基础饲粮+0.05%短乳杆菌(试验Ⅰ组)和基础饲粮+0.10%短乳杆菌(试验Ⅱ组),试验期30d。结果表明:1)与对照组相比,试验Ⅰ组的平均日采食量、料重比和试验Ⅱ组的平均日采食量均显著降低(P<0.05),试验Ⅱ组的料重比极显著降低(P<0.01);2)与对照组相比,试验Ⅱ组粪便中的乳酸菌数量显著提高(P<0.05),大肠杆菌数量显著降低(P<0.05);3)与对照组相比,试验组的血清白蛋白含量显著降低(P<0.05),其中试验Ⅱ组达到极显著水平(P<0.01);球蛋白含量极显著升高(P<0.01);白球比极显著降低(P<0.01);结合珠蛋白含量极显著降低(P<0.01);干扰素γ含量显著升高(P<0.05)。结果提示,短乳杆菌能够显著改善生长猪肠道菌群环境,提高机体免疫力,改善生长性能。

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