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鹅蛋恒温孵化是否需要凉蛋
更新时间: 2021-01-31 03:56:38  

1、鹅蛋恒温孵化需要凉蛋。随着鹅蛋胚龄的增长,蛋温也日趋上升,为使鹅胚胎中、后期所产生的过多生理热量得到及时的散发,应适当增加喷水凉蛋次数和时间。胚胎经过喷洒约28-30度的温水,可以防止蛋温过高,保持孵化中鹅胚温度稳定性。另因,将温水喷洒在蛋壳表面,可使蛋壳胶质膜洗去,加大蛋壳与内壳膜的通透性,促进胚体与外界进行水分和气体的交换,从而增强胚胎的活力。凉蛋的方法是,当鹅蛋孵化到第10-11天以后,每天凉蛋一次,开机拉出蛋车,用温水喷洒蛋面。20天以后,每天要凉蛋两次,每次30分钟,使蛋面温度下降至30-32度(以眼皮测度,感到温而不凉时为宜)后,再重新关上机器继续孵化。

关键词: 恒温 孵化 是否 需要

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