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The reproduction of hens
1. The sum of the number of days of egg production and the number of days of gap production that occur during the laying cycle is called an egg cycle. It has been observed that it takes about 24 to 27 hours for a hen to form an egg, and it ovulates only after 0.5h of egg production. Therefore, in an egg production cycle, the latter egg is postponed later than the previous egg output time. When the last egg in the cycle is produced at 3-4 p.m. in the afternoon, the next day must be discontinued. For high-yield chickens that produce dozens of eggs, egg formation takes less than 24 hours. High-yielding chickens can produce more than 300 eggs a year. 2. Effects of Moulting on Egg Production After a prolonged egg production, chickens need to take off new feathers from old feathers. During the moulting period, the number of discontinued days in the gap between hens increases or stops production. For a flock of chickens, due to inconsistent moulting time, resulting in a low rate of egg production in the flock, artificial coercive moulting measures can be used to synchronize the moults in a short period of time to restore strength and then restart production. This will not only increase the egg production rate, but also improve the quality of the eggs. 3. Nesting and laying nests are nests, which are instincts for the breeding of birds. Hens do not produce eggs when they hug their nests. Local breeds that are not strictly selected have strong nesting characteristics, and good products that are selected through modern selection do not generally have nesting.