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Conception of Jersey cattle in Turkey

机译：土耳其泽西牛的构想

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摘要

To determine the effects of insemination season (IS; dry: May through October and rainy: November through April), lactation number (LN; heifers, primiparous or multiparous) and their interaction on non-return rate (NRR), conception rate (CR) to first-service and pregnancy loss (PL) of Jersey cattle in Turkey, over 1468 lactation records from 510 Jersey dairy cows were used. There was an interaction between LN × IS on NRR, CR to first-service (p < 0.01) and PL (p < 0.05). The NRR and CR to first-service of heifers inseminated during dry season and of primiparous inseminated during rainy season were higher (p < 0.01) than that of multiparous inseminated during both season. The NRR and CR of heifers and primiparous were higher (p < 0.05) than that of multiparous cows. The insemination of heifers during rainy season and of primiparous and multiparous during dry season increased (p < 0.01) the PL compared to the inseminations of heifers during dry season and of primiparous during rainy season. The PL was lower (p < 0.05) in primiparous than multiparous cows. The results demonstrate that the heifers have high fertility than the lactating, especially multiparous and that IS appeared to have a measurable impact on traits relating to conception of Jersey cattle in the each LN.
机译：确定授精季节（IS；干燥：5月至10月，阴雨：11月至4月），泌乳次数（LN；小母牛，初生或复生）的影响及其对单归率（NRR），受孕率（CR）的影响），在土耳其泽西牛的首次服役和妊娠损失（PL）方面，使用了510株泽西奶牛的1468头泌乳记录。 NR的LN×IS，首次服务的CR（p <0.01）和PL（p <0.05）之间存在相互作用。在两个季节中，在旱季授精的小母牛和雨季授精的初生母牛的NRR和CR均高于（p <0.01）。小母牛和初产母牛的NRR和CR均高于多头母牛（p <0.05）。与旱季和雨季的初生母牛的授精相比，雨季的小母牛的授精和旱季的初生和多胎的授精增加（p <0.01）。初产奶牛的PL低于多产奶牛（p <0.05）。结果表明，小母牛比哺乳期的母牛具有更高的繁殖力，尤其是多胎的，并且IS对每个LN中与泽西牛受孕相关的性状似乎具有可测量的影响。

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