›› 2011, Vol. 38 ›› Issue (9): 134-137.

• 遗传繁育 • 上一篇    下一篇

季节对荷斯坦育成牛超排效果的影响分析

陈龙1,2, 刘潇1, 毕江华1, 余文莉1, 李树静1,2   

  1. 1. 北京安伯胚胎生物技术中心,北京 100107;2. 石家庄天泉良种奶牛有限公司,河北石家庄 050051
  • 收稿日期:2011-02-24 修回日期:1900-01-01 出版日期:2011-09-20 发布日期:2011-09-20
  • 通讯作者: 李树静

The Influence of Seasons on the Superovulation of Holstein Heifers

CHEN Long1,2, LIU Xiao1, BI Jiang-hua1, YU Wen-li1, LI Shu-jing1,2   

  1. 1. Beijing Anbo Embryo Biotech Center, Beijing 100107, China;2. Shijiazhuang Tianquan Elite Diary Ltd., Shijiazhuang 050051, China
  • Received:2011-02-24 Revised:1900-01-01 Online:2011-09-20 Published:2011-09-20

摘要: 为了研究季节对石家庄地区荷斯坦奶牛超数排卵的影响,对达到12月龄的荷斯坦育成牛逐月进行3次超数排卵。结果表明,头均胚胎总数和头均退化胚胎数各月差异不显著(P>0.05);头均可用胚胎数量3月最高(7.04±4.92),8月最低(3.20±3.33),两者间差异显著(P<0.05),与其它各月间无显著差异。总体而言,超排效果随着气温升高而呈下降的趋势,在气候较为适宜奶牛生理生存状态的季节,超排效果更为理想。说明超数排卵效果春季最好,秋冬季效果好于夏季,超排应避开夏季炎热的月份。

关键词: 季节; 荷斯坦奶牛; 超数排卵

Abstract: To research the influence of seasons on the superovulation of Holstein, the Holstein heifers of 12 months had been superovulated for 3 times among the year. The results showed that there were no significant differences among seasons for the mean number of the recovered embryos and the degenerated embryos(P>0.05), the mean number of the transferable embroys in march(7.04±4.92) was significantly higher than the data in august (3.20±3.33)(P<0.05), no significant differences with other months(P>0.05). The increased temperature had a negative influence on the effect of superovulation, the success of superovulation could be obtained in th season which was suitable for the cows physilogical functions. It was concluded that the effect of superovulation was related to the seasons, the best season for superovulation was spring, autumn and winter were better than summer, the tropical months should be avoided for superovulation.

Key words: season; Holstein heifers; superovulation

中图分类号: