How to increase the uniformity of broiler breeders

The uniformity of broiler breeders refers to the orderliness of the whole flock and individual growth and development. It mainly includes three aspects: body type, body weight, and sexual maturity. Among them, the uniformity of body weight is the most important, especially in the breeding period. The chickens with high body weight uniformity started production in a timely manner, were tidy, entered the peak of egg production, had a long peak duration, had a low mortality rate, and had the same size of eggs. Therefore, people attach great importance to the weight uniformity of broiler breeders. After years of practice, we have summed up some experiences in raising the weight uniformity of broiler breeders for your reference. First, the density should be appropriate. There is a direct relationship between stocking density and flock size. The proper density keeps the air in the house fresh, reducing stress and preventing blemishes. The activities of dense chickens are limited, their growth and development are hindered, resulting in a decrease in evenness; low densities result in a low utilization rate. Each group of chickens is suitable for 300-500. Breeding density: 1-2 weeks old 18-25/m2; 3-6 weeks old cocks 5-6/m2, hens 8-10/m2; 3-6 weeks old cocks 5-6 / M 2, hens 8-10 / m 2; 7-16 weeks of age 7-8 / m 2; 16 weeks after the age of 5 / m 2 is appropriate. Second, feeding restrictions. The specific approach is to combine the three methods of time-limited, limited-quality, and limited-quantity, and limit the daily feed for 4-12 weeks, that is, feed the quantitative feed every day. 12-15 weeks of age to limit the feeding 1/2, that is, three days of feed after feeding for two days, stop one day. 16-18 weeks of age were fed with a 2/5 limit, that is, the weekly feed was divided into 5 days and the middle was on the 2nd and 5th days. In each breeding weekend, randomly draw 10% of chickens for individual weighing. Calculate the average weight of male and female chickens respectively, and compare them with recommended standard weights. If the average weight does not match the recommended weight, adjust the amount of feeding. When the actual weight exceeds the standard, the feed amount for the previous week is maintained next week. When the body weight is lower than the standard, every 1% of the chicken is increased by 3-5 grams per day. Third, we must be accurate. Reasonable deterrence is important to avoid mutualism, reduce feed wastage and improve uniformity. For the first time, the deafness is 4-10 days old, and the second deafness is completed within 10 weeks of age, otherwise it will delay sexual maturity. Vitamin C and VK were added to the diet or drinking water for 3 days before and after the break to relieve stress and bleeding. The method of deafness should be accurate. Lightly press the throat of the chicken by hand to retract the tongue so as to avoid scalding. The upper jaw should be cut off by 1/2 and the lower jaw should be cut off by 1/3. The blade of the severed device should be sharp and the blade and the chicken must be sharp.喙 喙 喙 喙 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。. Fourth, the environment should be appropriate. The chicken house temperature is preferably 23-24 °C, humidity 50%-55%, to prevent high temperature and humidity, low temperature and humidity appear; pay attention to ventilation, control of light, grasp the light when the short should not be long, the strength should be weak should not be strong principle to prevent Precocious puberty; keep litter clean and dry, to create a good growth and development environment for chickens, is conducive to improving the uniformity. Fifth, prevention of disease should be reasonable. Frequent cleaning of henhouses and surrounding environment, timely removal of manure, regular disinfection. Strengthen the immunization program for broiler breeders and scientifically use vaccines. This is a guarantee of increasing the body weight uniformity of broiler breeders.

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