How to choose hatching eggs
The quality of the eggs directly affects the hatching rate and the quality of the chicks. It also affects the survival rate, health status, and production performance of the chicks. Therefore, strict selection must be made before hatching eggs.
1. Eggs from the source of eggs must be from high-yielding, healthy and disease-free, feeding and management is correct, and the proportion of the appropriate spouses of chickens in order to ensure a higher fertility rate and hatching rate.
2. The fresher eggs used for hatching require fresher and better eggs. With the extension of storage time, the hatching rate of breeding eggs gradually decreased. Eggs cannot be washed with water. After the washed eggs, the surface of the eggs is exfoliated. The microorganisms easily invade the interior of the eggs, which can easily lead to deterioration of the eggs. The moisture in the eggs is also easy to evaporate.
3, the appropriate size of eggs to grow eggs should be moderate in size, too large or too small eggs are not suitable for eggs. Egg Type Eggs Individual weight: 52 grams in the first 12 weeks after opening, 55 grams or more after 12 weeks, and 50 grams in the meat for the first 12 weeks and 52 grams or more after 12 weeks. Whether it is an egg-type egg or a meat-type egg, a single weight should not exceed 65 grams.
4, normal shape of the egg is oval, egg shape index is 0. 72 ~ 0. 76. Long, round, big in the middle of the two tips, or a very small, abnormal egg can not be used.
5, the internal quality of the internal quality of the eggs can be used light inspection. Where viscous shells, scattered yellow, large flow of egg yolk, there are bubbles in the eggs, gas chambers, air chamber flow, air chamber in the middle or in the small head of the eggs, are not suitable for hatching.
6. Egg necropsy Each batch of eggs can be randomly selected several eggs, open the eggs into a flat glass container, the fresh protein is thick, egg yolk uplift; fresh protein is thin, egg yolk is relatively flat.
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