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二花脸和大约克夏公猪不同发育时期睾酮分泌特性

DOI: 10.7685/j.issn.1000-2030.2003.03.029, PP. 117-119

Keywords: 二花脸猪,大约克夏猪,公猪,睾酮

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Abstract:

随机选取3,20,30,90,120和180日龄纯种二花脸和大约克夏公猪各4头,屠宰后采取血样和睾丸组织样,测定血清和睾丸组织中睾酮含量。结果表明,90日龄前,两品种公猪血清睾酮水平均维持在较低水平,血清睾酮水平从90日龄开始,随日龄增加二花脸公猪极显著升高(P〈001),而大约克夏公猪的则从120日龄开始显著上升(P〈005)。二花脸公猪的血清睾酮水平显著高于大约克夏公猪(P〈005)。不同日龄的公猪睾丸组织中睾酮含量的变化与血清睾酮水平的变化趋势相反,3日龄时睾丸组织中睾酮含量最高,以后随日龄增加而下降,二花脸公猪在20和90日龄时急剧下降(P〈001),大约克夏公猪90日龄前随日龄显著降低(P〈005),90日龄后保持相对稳定。睾丸组织中睾酮含量二花脸公猪极显著低于大约克夏公猪(P〈001)。

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