年龄、温度、膘情对伊犁马卵泡发育的影响

【目的】 研究新疆昭苏地区伊犁马发情周期内卵泡发育变化规律,分析年龄、温度、膘情对伊犁马母马卵泡发育的影响,为掌握伊犁马母马卵泡发育规律提供理论依据。【方法】 选取伊犁哈萨克自治州昭苏县康苏马业配种站内,同一草场放牧情况下84匹母马作为研究对象监测发情期内卵泡发育,分析对比不同年龄、温度、膘情对伊犁马卵泡发育时长的差异性。【结果】 年龄Ⅱ组TF3-F5显著高于年龄Ⅲ组(P＜0.05)。年龄Ⅱ组TF4-5显著高于年龄Ⅲ组(P＜0.05)。平均高温对TF1-F2具有显著影响(P＜0.05),平均高温Ⅰ组TF1-F2显著高于平均高温Ⅱ组(P＜0.05)。平均低温对TF1-F2具有极显著影响(P＜0.01),平均低温Ⅰ组TF1-F2极显著高于平均低温Ⅱ组(P＜0.01)。积温对TF1-F2具有显著影响(P＜0.05),积温Ⅱ组TF1-F2极显著高于积温Ⅰ组(P＜0.01)。膘情对TF1-F2、TF3-F4、TF1-F5、TF2-F5、TF3-F5均具有极显著影响(P＜0.01),对TF2-F3具有显著影响(P＜0.05)。膘情Ⅰ组TF1-F2极显著高于膘情Ⅲ组(P＜0.01)。膘情Ⅰ组TF2-F3显著高于膘情Ⅲ组(P＜0.05)。膘情Ⅲ组TF3-F4极显著低于膘情Ⅰ组(P＜0.01),膘情Ⅲ组TF3-F4显著低于膘情Ⅰ组、膘情Ⅱ组(P＜0.05)。膘情Ⅰ组TF1-F5极显著高于膘情Ⅱ组、膘情Ⅲ组(P＜0.01),膘情Ⅱ组TF1-F5显著高于膘情Ⅲ组(P＜0.05)。膘情Ⅰ组TF2-F5极显著高于第Ⅲ组(P＜0.01),膘情Ⅰ组TF2-F5显著高于膘情Ⅱ组、膘情Ⅲ组(P＜0.05)。【结论】 年龄、温度、膘情均一定程度的影响伊犁马母马的卵泡发育,其中膘情对卵泡发育有极显著影响,体况较差可抑制母马卵泡发育。

The Study on the Effects of Age,Temperature and Fat Condition on the Follicular Development of Yili Horse

【Objective】 The purpose of this study is to explore the follicular development and change law of Yili mare in the estrus cycle in Zhaosu area of Xinjiang, and make an analysis on the influence of age, temperature and fat condition on follicular development of Yili mare. The above steps can provide theoretical basis for further mastering follicular development and growth law of Yili mare.【Method】 Eighty-four mares were selected as the research object. These horses were grazing in the same pasture in Kangsu Horse Breeding Station of Zhaosu County, Yili Kazakh Autonomous Prefecture. They were used to monitor follicular development during estrus. Through these, the differences of the effects of different ages, temperatures and fatness on follicular development duration of Yili horses were analyzed and compared. 【Results】 TF4-F5 and TF3-F5 in age group II significantly higher than those in age group III (P＜0.05). High temperature obviously the TF1-F2 (P＜0.05). The average high temperature group I TF1-F2 much higher than the average high temperature group II (P＜0.05). Low temperature seriously TF1-F2 (P＜0.01). The average low temperature group I TF1-F2 much higher than the average low temperature group II (P＜0.01). Accumulated temperature an important effect on TF1-F2 (P＜0.05). temperature group II TF1-F2 significantly higher than accumulated temperature group I (P＜0.01). Body condition significantly affects TF1-F2, TF3-F4, TF1-F5, TF2-F5, TF3-F5 (P＜0.01)in addition, it has significant effect on TF2-F3 (P＜0.05).TF1-F2 in body condition group I significantly higher than that in body condition group III (P＜0.01). TF2-F3 in group I significantly higher than that in group III (P＜0.05). TF3-F4 in body feeling group III much lower than that in body condition group I (P＜0.01). TF3-F4 in body condition group III significantly lower than that in body condition group I and body condition group II (P＜0.05). The TF1-F5 in group I significantly higher than that in group II and group III (P＜0.01), while the TF1-F5 in group II significantly higher than that in group III (P＜0.05).TF2-F5 in the body condition group I significantly higher than that in the body condition group III (P＜0.01), and TF2-F5 in the body condition group I much higher than that in the body condition group II and the body condition group III (P＜0.05).【Conclusion】 To a certain extent, age, temperature and body condition all have corresponding effects on the follicular development of Yili mare. Among them, body condition has a very significant effect on the follicular development, which can inhibit the follicular development of mare under the condition of poor body condition.