Rearing hens in late summer and early fall

In the late summer and early autumn, it is the spring of raising the primiparous hens. The management of the flock during this period is related to the economic efficiency of the chicken farm (household). Therefore, the following management measures shall be taken for the replacement hens: Feeding the transition material in time shall generally feed the 20-week-old chickens with egg forage, which is also called transitional material. The calcium in the material is 1% and the crude protein is 16.5%. When the material is reloaded, the reloading process should be gradually completed within half a month. Avoid overrunning to prevent dialysis. When the egg production rate reaches 2%-5%, the calcium content of the feed should be 3.4%-3.5%, and the crude protein content should be 18%. While controlling the initial body weight in refilling calcium supplementation, we should do a good job in the uniformity of population development, and group large, medium, and small hens in groups to raise them regularly. Avoid sudden increase in material or slashing material, the effectiveness of which can be expressed after 3 weeks, should not be rushed. The weight of light-weight chickens should not exceed the size of medium-large chickens, so as to avoid affecting sexual maturity due to fat deposition. The optimum temperature for laying hens in control sheds is 18°C-23°C. When the outside temperature is lower than 18°C, the nutrients used to maintain the demand will increase; when the temperature is lower than 13°C, it will affect the growth and egg production of laying hens, and the temperature of the chicken house is too low to increase in time. When feeding, chickens will postpone production due to lack of energy. In summer and autumn, the feed intake of laying hens decreases. If the proportion of protein in the diet is not increased in time, it will affect the development of the chicken's reproductive system and delay production. Humidity and ventilation requirements The relative humidity of the chicken house is required to be 55% to 65%. The relative humidity of the house at 1 to 3 days is 70%. After 4 weeks of age, the relative humidity is reduced to about 50%. Humidity should not be too high, otherwise the chicks will have problems such as unclean feathers, loss of appetite, and sickness, which delays sexual maturity and delays production. If the ventilation is poor, harmful gases in the air will increase, the humidity will increase, and the oxygen content will decrease, which will cause the reserve hens to stunt and delay production. Light control and adjustment The replacement hen usually enters sexual maturity at the age of 15 weeks, and natural light during this period is gradually shortened. Due to the short illumination time and the long time to reach sexual maturity, supplemental illumination should be started after 15 weeks of age to meet the needs of sexual maturity. In general, the illumination time after 15 weeks of age should be maintained at the light hours of 15 weeks of age, but the light can not be too strong to prevent the emergence of chicken feathers, toes, backs and other evils. The initial lighting time for laying hens is 13-17 hours a day. Feeding clean drinking water The first-time hens are very important for drinking water. Generally, a hen needs 100-200 grams of water a day. Therefore, laying hens should not be deprived of water every day. It is best to use flowing water tanks for water supply. 3 times salt water, to improve the hen's constitution, increase feed intake. You can also feed some carrots or greens daily to improve the quality of the eggs. China Agricultural Network Editor

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