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首页> 外文期刊>Tropical Animal Health and Production >Reproductive seasonality in creole hair sheep in the tropic
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Reproductive seasonality in creole hair sheep in the tropic

机译：热带克里奥尔毛羊的繁殖季节

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摘要

The objective of the present study was to evaluate the annual ovulatory activity of hair sheep at 15 degrees N. Nineteen Creole ewes with body weight of 40.8 +/- 0.3 kg were used. The ovulatory activity was monitored for a year by quantifying progesterone concentrations in blood samples obtained from all the ewes every 7 days. The differences in monthly proportions of ewes with ovulatory activity were analyzed by the chi-square test, Ovulatory activity decreased from May to July and in September, and 42 % of ewes ovulated year round. It is concluded that at 15 degrees N, a high proportion of ewes is capable of ovulating throughout the year in the tropical southeastern region of Mexico.
机译：本研究的目的是评估毛羊在15°N时的年度排卵活性。使用19头克里奥尔母羊，体重为40.8 +/- 0.3公斤。通过量化每7天从所有母羊获得的血液样本中的孕酮浓度来监测排卵活性一年。通过卡方检验分析了具有排卵活性的母羊每月比例的差异，从5月至7月和9月排卵活性下降，全年排卵的母羊占42％。结论是，在墨西哥东南部的热带地区，在北纬15度时，全年有很高的排卵能力。

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