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Comparative study on some morphological and performance traits of Hill cattle, Sahiwal and crossbred cattle

机译:希尔牛,希希尔和杂交牛某些形态和性能性状的比较研究。

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摘要

A total of 720 animals were selected comprising of 260 Sahiwal (SC), 260 Crossbred (CB) and 200 Hill cattle (HC) of different age and sex to study body morphometric and performance traits. There was a significant (P <= 0.05) difference between body morphometric traits between Hill cattle and Sahiwal as well as between Hill cattle and crossbreds. Estimates of almost all the body morphometric traits in all the age groups were significantly (P <= 0.05)lower in Hill cattle than rest two groups (Sahiwal and crossbreds). The estimates of these traits were statistically indifferent between Sahiwal and crossbreds cattle except in greater than 36 months age group, where these were significantly (P <= 0.05) higher for crossbreds. Age at first calving was significantly (P <= 0.05) lower in crossbreds than indigenous breeds while as service period was lowest in Hill cows and maximum in Sahiwal cows. Dry period and calving interval were significantly (P <= 0.05) highest in Sahiwal cows.
机译:总共选择了720只动物,包括260头不同年龄和性别的Sahiwal(SC),260头杂交(CB)和200头Hill牛(HC),以研究人体形态和性能特征。希尔牛和萨希瓦尔之间以及希尔牛和杂种之间的身体形态特征之间存在显着差异(P <= 0.05)。在所有年龄组中,几乎所有身体形态特征的估计值均显着(P <= 0.05)在希尔牛中比其他两组(Sahiwal和杂种)低。除在36个月以上的年龄组中,这些特征在Sahiwal牛和杂种牛之间的统计上无差异,在杂种牛中这些特征显着(P <= 0.05)。杂交时初产犊的年龄显着低于(P <= 0.05)本地品种,而希尔母牛的服务期最低,而萨希瓦尔母牛的服务期最大。 Sahiwal奶牛的干旱期和产犊间隔最高(P <= 0.05)。

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