First, the quality of the eggs must be fresh. In general, the eggs used for breeding are best fed within 10 days because the hatching rate of the eggs produced during this period is higher, and the hatched chicks are also often healthy and strong. The survival rate is extremely high. high.
The second is the proper shape and size of the eggs. Eggs that are too large, too small or too round or too long are not suitable for hatching.
Third, the appearance of eggs must be normal. Eggs with abnormal surface structure, such as thin-shelled eggs, thick-shelled eggs or "salp eggs", are not suitable for hatching.
Fourth, the egg shell surface should be cleaned to ensure no cracks. Eggs with dirty shells or cracked eggs are often subject to microbiological contamination and are most likely to spoil, leading directly to hatching failures.
Five eggs that are used for brooding must all be required to come from normal healthy chickens in order to avoid illness.
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