Weight and weight determine the performance of the hens. The chicken farmer should try to make the reserve hens and the hens reach the standard weight. If you do not pay attention to the energy requirements of chickens and you weigh less when you start production, it is very difficult for chickens to reach the egg production rate at the peak of standard laying. If the weight is not up to the standard during the peak period, there will be a one-time drop in egg production rate. As the duration of maintenance shortens, chickens will experience premature aging. The main role of light illumination is to guide poultry intake, drinking, exercise, regulate gonadal development, stimulate gonads to secrete hormones, regulate production time and laying performance. After the beginning of autumn, open henhouses should be supplemented with artificial light to facilitate the promotion of egg production and maintain the stability of production performance. The temperature difference between day and night in autumn is relatively large. The open chicken house should be used for the cold insulation work of the chicken house. Beware of the impact of thieves wind at night and affect the production of eggs. The density is high in autumn, and many chicken farmers believe that increasing the density of the flock not only effectively uses space, but also plays a role in keeping warm at night. As a result, the effects on the flock intake, ventilation, and weight gain affect the production performance. . Therefore, it is also an important factor to maintain an appropriate flocks density in the fall. Feed in autumn and winter, if the chicken feed intake is insufficient, the performance of the chicken will be reduced. If the intake energy level is less than 10 MJ/kg, the egg weight will be reduced and the egg production will be reduced. When the crude protein in the diet is lower than 16%, the protein in the body is insufficient, so that short-term use of the body tissue protein reserve can be used to make up for it. This will have no significant effect on egg production, but the protein stored in the body is limited, and long-term deficiency will cause Egg weight and egg production decreased. Since autumn, the feed intake of chickens has increased, so that the amount of energy and protein added in the summer should be adjusted to normal levels to prevent the chickens from being over-fatated due to high energy and affect the laying rate. In the case of seasonal drug conversion, many chicken farmers often add drugs to feeds to prevent the stress caused by climate change to the flock. In fact, many drugs have an impact on the production performance of laying hens. Improper use can cause serious economic losses. . For example, sulfonamides affect the synthesis of vitamin K and B vitamins by the gut microbiota, which in turn affects the quality of egg shells; tetracyclines have a direct stimulatory effect on the digestive tract mucosa. Therefore, special attention should be paid to the drug type and dosage when using drugs. Stress In autumn, when the weather is cold from heat, when there is a serious imbalance between ventilation and body temperature, the birds develop cold and heat stress, and environmental stress (ventilation) will cause changes in the laying cycle. Therefore, chicken farmers should make preparations in advance and take timely measures to reduce the conflict between ventilation and insulation.
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