Over 30% hens presented typical broodiness, and the duration of each broody cycle was about 29 days.

超过30%的母鸡表现出典型就巢行为，其平均就巢持续时间约为29天。

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Over 30% hens presented typical broodiness, and the duration of each broody cycle was about 29 days.

超过30%的母鸡表现出典型就巢行为，其平均就巢持续时间约为29天。

youdao