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水合硅铝酸钠钙对生长肥育猪生长性能、养分表观消化率及抗氧化能力的影响

DOI: 10.3969/j.issn.1006-267x.2013.03.015

Keywords: 水合硅铝酸钠钙,生长性能,表观消化率,抗氧化能力,生长育肥猪

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Abstract:

本试验旨在研究水合硅铝酸钠钙(HSCAS)对生长育肥猪生长性能、养分表观消化率及抗氧化能力的影响。选择(48.0±10.0)kg的健康"杜×长×大"生长猪45头,随机分为3个处理,每个处理5个重复,每个重复3头猪。对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮中添加0.25%和2.50%HSCAS的饲粮。试验期为70d,分为48～80kg(前期)和81～110kg(后期)2阶段进行。结果表明:1)与对照组相比,添加0.25%HSCAS对猪生长性能、血清尿素氮(UN)含量和抗氧化能力均无显著影响(P>0.05),但显著降低了后期粗蛋白质(CP)和能量的表观消化率(P<0.05);2)与对照组相比,添加2.50%HSCAS显著提高了后期和全期的料重比(P<0.05),显著提高了血清UN含量(P<0.05),显著降低了后期生长育肥猪CP、粗灰分和能量的表观消化率、血清超氧化物歧化酶活性及总抗氧化能力(P<0.05)。由此可知,饲粮中添加0.25%HSCAS对生长育肥猪的生长和健康无明显影响,但添加量达到2.50%可显著降低其生长性能、养分表观消化率和抗氧化能力。

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