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Shanxi Jinnan Huangniu was treated with two follicle stimulating hormone. The effect of Luteinizing hormone releasing hormone A3 for injection was observed in the experiment of estrus and mating.
试验采用两种不同来源的促卵泡素对山西晋南黄牛进行了超排处理，并对发情配种过程中注射促黄体素释放激素A3的超排效果进行了观察。
参考来源 - 山西晋南黄牛的超数排卵配种研究—《湖北农业科学》—2008年第7期—龙源期刊网·2,447,543篇论文数据，部分数据来源于NoteExpress
在发情期，大野猪们会为求偶而展开激烈的争斗。
During the rutting season the big boars have the most terrible mating battles.
这对涉猎广泛的鹿来说是一个明显的优势，尤其是在秋季发情期，它们要追逐几只成年雌鹿的时候。
This would be an obvious advantage to wide-ranging deer, especially to a socially dominant buck when courting several adult females during the autumn rut.
长期以来，生物学家们认为雄鹿擦痕不仅可以清除并磨光鹿茸，还可以借此练习发情期时雄鹿之间的角斗。
For a long time biologists believed that male deer used buck rubs not only to clean and polish antlers but also to provide practice for the ensuing male-to-male combat during the rut.
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