In the fall
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Autumn is the initial stage of spring chicken production. This period of chicken management is related to the economic efficiency of chicken farms (households). Therefore, the following management measures should be taken for the production of hens: Timely feeding of transitional materials generally provides 20-week-old chickens with egg pre-feeds, also known as transition materials, with calcium content of 1% and crude protein of 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% to 5%, the calcium content of the feed should be 3.4% to 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 between 18°C ​​and 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. When summer and autumn temperatures are high, the feed intake of laying hens is reduced. If the proportion of protein in the diet is not increased in time, the development of the chicken reproductive system will be delayed and the production will be postponed. 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 of age is 70%. After 4 weeks of age, the relative humidity can be 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. Generally, the illumination time after 15 weeks of age should be maintained at the light hours at the age of 15 weeks, but the illumination should not be too strong to prevent the occurrence of fleas such as chicken feathers, toes, and dorsum. The initial illumination time of laying hens is 13-17 hours. Supply of clean drinking water and drinking water is very important for the first-born hens. In general, a hen needs 100 to 200 grams of water per day. Therefore, laying hens must not be deprived of water every day. It is best to use flowing water tanks to supply water. 3 times salt water, to improve the hen's constitution, increase feed intake. Some carrots or green feed can also be fed daily to increase the quality of eggs