brood size
... 育雏器 brooder ; breeder ; hover 育雏数 brood size 温水育雏器 hot water brooder ...
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如每平方米育雏只数多了就叫饲养密度大，只数少了货是密度小。
If every square metre only several more brood called breeding density, only less number of goods is density is small.
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饲养密度：在育雏阶段是指单位育雏面积上饲养的雏鸡只数。
Breeding density: brood stage is refers to the unit in the area of feeding bird-flu brood only number.
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