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水牛生长激素分泌特点的研究

DOI: 10.3321/j.issn:1000-7091.2002.03.027, PP. 135-139

Keywords: 生长激素,昼夜节律,水牛

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Abstract:

对3头年龄为2~3岁的去势水牛,安装颈静脉血管瘘管,定时采血,用放射免疫法测定血浆中GH的水平.结果表明:水牛全天生长激素(GH)分泌的脉冲频率为1.143±0.06次/h,脉冲基线为14.467±0.46ng/mL,脉冲高度为18.719±0.76ng/mL,脉冲幅度为4.247±0.1ng/mL;白天的脉冲基线显著高于夜间,脉冲频率、脉冲高度、脉冲幅度均高于夜间;春季和夏季夜间GH分泌的脉冲频率基本相同,其余3种参数春季均显著高于夏季.

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