... 环形动物交裂型 Annelidan cross 环形胎盘 Annular placenta，Zonary placenta 无欲期 Anoestrus ...
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The plasma leptin concentration of anoestrus group was significantly lower than estrus group. Those were the direct cause leaded to anoestrus in dairy cows at postpartum.
乏情奶牛通常不具有正常的生殖激素分泌含量、分泌模式及峰值,并且乏情组奶牛血浆中Leptin浓度显著低于发情组,是导致奶牛乏情的直接原因。
参考来源 - 集约化牛场奶牛乏情病因学及防治的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
N a period of sexual inactivity between two periods of oestrus in many mammals 不动情期
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