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大豆球蛋白、β-伴大豆球蛋白对反刍前犊牛致敏作用的研究 被引量:5

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摘要 8头初生荷斯坦公犊牛,随机分为A、B两组,每组4头。分别饲喂含生全脂大豆粉的代乳料和全乳。1、3、7、10、14、18、22、26、30、34、38、42日龄早饲前采血5mL,分离血清,以提纯大豆球蛋白、β-伴大豆球蛋白及其相邻收集馏分(7S二峰、11S二峰)为抗原,采用ELISA方法测定血清中特异性抗体滴度。结果表明:A组犊牛自10日龄起全部开始腹泻,20日龄左右粪便中可见脱落的肠黏膜,而B组犊牛无腹泻发生;A组犊牛血清中各种大豆抗原蛋白的特异性抗体滴度均极显著地(P<0.01)高于B组;饲喂初乳后,3日龄血清抗体滴度出现一个峰值;在持续饲喂大豆蛋白的情况下,6周龄内血清抗体持续升高,未见下降趋势,其中7S二峰致敏性高于大豆球蛋白、β-伴大豆球蛋白和11S二峰;β-伴大豆球蛋白在30日龄前致敏性高于大豆球蛋白和11S二峰。
出处 《中国畜牧杂志》 CAS 北大核心 2006年第15期38-41,共4页 Chinese Journal of Animal Science
基金 国家自然科学基金(30430520)
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参考文献7

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二级参考文献24

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