下蛋鸡的分组方式孵化用的鸡蛋选择的是负电位鸡蛋和非负电位鸡蛋两种类型。

Grouping the laying hens <br>the egg selection potential is negative and non-egg hatching eggs are two types of negative potential. Eggs according to a negative potential to impart a negative potential to distinguish between different control and a negative potential hatching described herein, a method of obtaining a negative potential and eggs with the egg to obtain an identical, therefore, omitted.

How to group eggs<br>The eggs used for incubation are selected as negative potential eggs and non-negative poteoelectric eggs. Negative potential eggs in accordance with the negative potential given different differences in differences and control, negative potential hatching egg acquisition method and the negative potential egg acquisition method described in this article is the same, therefore, no further mention.

Grouping of laying hens<br>The eggs for hatching are negative potential eggs and non negative potential eggs. Negative potential eggs are distinguished and controlled according to the different negative potential given. The method of obtaining negative potential eggs for negative potential hatching is the same as the method of obtaining negative potential eggs introduced in this paper. Therefore, it will not be described in detail.