What about the increase in the number of pigeons without sperm eggs?

The reason for the increase of pigeon sperm free eggs

In breeding pigeons, we call unfertilized eggs sterile eggs, resulting in sterile eggs due to the following factors:

1, both male and female have a small number of individuals are born sterile, this pigeon should be eliminated. When a pigeon is suspected to be sterile, it can be mated with 3 different opposite sexes successively. If no fertilized eggs are produced after 3 mating, the pigeon is considered sterile.

2, female pigeon reproductive tract abnormal, and can not lay fertilized eggs. Almost 100% of chalky eggshell eggs are sterile or unhatchable. Certain types of sands can prevent pigeons from laying chalky eggs, but hens with organic defects are generally incurable and should be eliminated.

3. The mating is abnormal. If the environment is too crowded, the presence of single pigeons in the lofts will also increase the proportion of sterile eggs.

4. The older the pigeon is, the easier it is to lay sperm free eggs. All breeding pigeons should be recorded so that individuals with a high percentage of sterile eggs can be identified and eliminated as they age.

5. Many breeds, especially the young breeding pigeons of heavy breeds, are easy to lay sperm free eggs, and the proportion of sperm free eggs laid in the first litter can be as high as 50%.

6. The interval between two litters of eggs is too short. If a pair of pigeons lose their eggs and soon lay another litter, the next litter is likely to be sterile. The hens rest for 7~10 days without laying eggs and can return to normal.

7. Improper management or improper intake of diet will seriously damage the reproductive performance of pigeons. The imbalance between feed and health sand will increase the proportion of sperm free eggs.

8, anal villi are too thick, affecting mating, if the anus will be cut short with scissors, can improve the fertilization rate.

9. Oversize, especially if the female pigeon is too large, it will often be sterile. Breeding pigeons should be selected from medium size and normal build.