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中文
文章摘要
海南黄牛体型外貌变化与应对措施探讨
DOI:
10.3969/j.issn.1004-874X.2010.05.060
Author Name
Affiliation
吴科榜, 宁彩, 满初日噶
海南大学农学院
,
海南
,
海口
,
570228
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Abstract
:
通过对海南黄牛(雷琼牛)进行外貌观察和体尺测量,研究了海南黄牛体型外貌特征在近年来的变化.研究表明:海南黄牛的多项体尺指标已发生了变化,其中母牛的体重、体高、胸围、管围、体长、峰高均变小;公牛的体重、体长、管嗣均有所增加,而胸围、体高、峰高则与母牛一样,都在变小;从整体上看,海南黄牛的体型在慢慢变长、变矮;役用功能有所增强;体躯骨骼的相对发育程度有所提高;躯干容量的发育程度有所下降.海南黄牛的群体体型特征虽然有向好的变化趋势,但进展缓慢,甚至出现退化的现象,母牛比公牛的退化程度大.
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