Scientifically formulated dietary chickens have different management goals for egg production. Therefore, male and female chickens should be fed diets with different nutrient content. The protein content of the rooster diet should be appropriately reduced (14.5% to 15.5%), and some multidimensional minerals and minerals should be added in a timely manner in the cockerel material (such as 40-60 grams of zinc sulfate per ton of cock material, 200-250 Manganese sulphate has proved to be effective in improving the fertilization rate of chickens, etc.) to meet the mating needs of roosters and to improve the vigor and quality of sperm. Feeding methods should adopt the method of male and female feeding, that is, automatic feeding devices for hens, and equipped with limiting plates or limiting nets, in order to cock can not eat the material. For the rooster, feed barrels are used. This practice can effectively control the weight of the rooster so that it can basically reach the target body weight at a later stage and prevent the fertility of the rooster from being reduced due to excessive fat. To prevent toe damage If using a shelf to raise, the spacing of the sheds should not exceed 3 cm, otherwise it will damage the toes of the rooster, affect the fertilization rate and even lead to its elimination. Do a good job in time to eliminate eliminated cockroaches and physical defects. The establishment of a rooster replacement program The death and sickness elimination of roosters in laying flocks will reduce the proportion of males and females in the flocks. Therefore, young cockerels can be added in proportion to the age of 40 to 46 weeks of the flock and replaced by different batches of cocks. This method can significantly improve the fertilization rate in the late flock. In order to avoid the spread of chicken diseases in different batches, the replacement cocks should be kept in isolation. The new rooster is placed one hour before dark and evenly distributed throughout the house.
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Feeding Management Techniques of Breeding Roosters during Production Period
The proportion of males and females should be suitable for the production of chickens. The ratio of males to females is generally 1:10. Years of practice have proved that this proportion can not only reduce the fighting between cockerels, but also can maintain the fertilization rate of ground-deep chickens at about 93%, and the fertilization rate of using the trellis is also about 90%.