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Management of breeder chickens: There are many sub-items, and the weak links that are easily overlooked by aquaculture friends are the sanitation and disinfection of the farms and the years of use of breeders. Scientists tell us that not all pathogenic infections can cause morbidity. Only a certain amount of pathogens can accumulate in the environment and the body. When the number of pathogens reaches or exceeds the limits that the body can resist, the chickens will develop the disease. In addition to outside invading pathogens, breeders themselves are an important source of pollution. Chickens excrete pathogens to the outside world through breathing, excretion, and skin secretions. Therefore, in the period of pathogen accumulation, strict isolation, scientific immunity, plus thorough disinfection, so that pathogens have no time to accumulate enough to cause pathogenic quantities, will not be killed in introgression of breeder chickens and eggs, and artificially prolong the period of pathogen accumulation. Contributing to the stagnation of infectious diseases in the accumulation period of pathogens is an important measure to guarantee the health of breeder chickens and guarantee high hatching rate and the rate of health-care chicks. Breeding hens in the 28-58 weeks of age egg production with a high pass rate, fertilization rate, hatching rate, 28 weeks old egg weight. Some breeder farms take two extremes in the breeding years of their breeders. One is to dig potentials ahead of time, drain fish, and disregard the breeder’s age, body condition, egg production rate, and egg weight for early insemination, resulting in breeding hens fallopian tubes and cloacas. Inflammation, the increase in egg production rate is slow, due to the light weight of eggs and malformed eggs, so that the qualified rate of hatching eggs, hatching rate, low rate of hatchery. The other is the extension of years, barely used. The correct method is to adopt the full-in, full-out system in the cycle, or to use the old hen new rooster, the new hen and the old rooster alternately, and the effect can also be achieved. The rooster diet should also be supplemented with VA and VE in time. Egg management includes selection, early disinfection, time and temperature and humidity control.