The breeding period of 49-168 days for the breeding chicks is the key to maintaining the best weight of the chicken during this period. Roosters can maintain a high fertilization rate if they maintain an optimal weight, and hens can maintain good egg production performance if they maintain optimal body weight. The main points for feeding are as follows: Limiting Feeding The purpose of restricting feeding is to make the chicken's body weight up to standard, good uniformity, healthy, solid, well-developed, timely production, and increase egg production rate and fertilization rate of eggs, reduce egg production mortality rate. 1, the number of restrictions on feeding the daily diet of 10% -80%, or take the next day feeding or stop feeding 2 days per week and other methods. 2. The quality restriction breaks the balance of dietary nutrients and causes certain nutrients in the diet to fall below normal levels and deficiencies. Feeding is not limited to retard the growth rate and sexual maturation of the chicken. 3, time limit Regularly put the material on time or hoisting buckets to reduce the chicken's intake time. Changes in Feed Amount and Addition of Feed 1. The amount of feed should be based on the average weight per week of the chicken to determine the amount of feed. When the flock exceeds the standard weight, the amount of feed does not decrease, but keeping the daily feed rate constant will slow the growth of the chicken. If the flock average weight is lower than the standard level, feed should be added slightly to allow the chicken to grow faster until the standard body weight is restored. 2. Changes in Feed and Addition of Substances When the 42-day-old average weight of a chicken reaches the standard, it is changed from the seventh week to the feed for the rearing period. At this point, a limited diet was used until 140 days of age. The first 98 days of age, anticoccidial drugs must also be added to feed to control the occurrence of coccidiosis. From the age of 49 days, 0.45 kg of sand (3 mm in diameter) is administered to every 100 chickens per week for digestion and anti-tractor sac reduction. Weight and Feed Restriction During the whole growth period, weight is the key to all plans. When adjusting the diet, pay attention to how the average weight of the flock can reach the standard level. In the implementation of restricted feeding process also with the use of light. If chickens are born between February and July, the light will gradually decrease, and their weight should be greater than that of chickens born from August to January of the following year. The drinking position of each chicken in the drinking water should not be less than 12.5 cm, and the height of the sink should be adjusted according to the height of the chicken's back in order to clean the sink daily and disinfect regularly. In addition to drinking water on the day of feeding, drinking once every 2-3 hours, each drinking water for about 20 minutes. On the day of supply, water is supplied 3 to 5 times a day for 20 minutes.
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