Restricted feeding methods for breeders
Release time:
Jun 14,2018
Breeders have strong feeding ability, so they grow and develop rapidly and gain weight quickly. However, if they are not controlled, the weight of breeders will easily exceed the standard, thus affecting their production. Therefore, restricted feeding must be carried out during the period from 4 weeks to 24 weeks of age of breeders. The specific techniques are as follows:
Restricting feeding first ensures that the weight of the breeder meets the standards of this breed. The weight of breeding chickens, especially the weight of hens, will greatly reduce the egg production and the qualified rate of breeding eggs. And overweight often occurs leg disorders.
Restricted feeding can make the bones and internal organs of broiler breeders fully developed in the early stage, maintain appropriate weight, delay the period of sexual maturity of broiler breeders, and synchronize their sexual maturity and body maturity. After 27 weeks of age, the laying rate of breeders can exceed 50%, and 30 weeks of age enter the peak period of egg production. Therefore, the use of limited feeding, can make the breeding hens more orderly, the opening of timely, the laying rate rose quickly, the duration of the peak period of egg production, the qualified rate of eggs is high.
Restricting feeding can reduce the amount of dietary inputs and reduce feed consumption. At the same time, it reduces the amount of abdominal fat deposition of breeders, thus reducing the incidence of prolapse and dystocia after the opening of the breeder.
In production, how to master the method of limiting feeding? At present, the method of limiting feeding can be divided into time-limited method, quality-limited method and limited method. In practice, a certain method is not used alone. For example, the time-limited method mainly controls the feed intake of breeders by controlling the feed intake time of breeders. This method can be divided into three forms: daily feeding restriction, alternate day feeding restriction and weekly feeding restriction.
Daily feeding restriction is based on the age, weight gain and nutritional needs of the breeders to maintain growth and development, with daily feeding or by limiting the number of feeding times and the time of each feeding. The advantage of daily feeding restriction is that it has less stress on chickens and is suitable for the late stage of brooding, the early stage of brooding and one week before the transfer to the laying hen house.
The next day's feed restriction is to concentrate the feed restricted for two days on l days, I .e. l days of feeding and l days of stopping feeding. This method has great stress on breeders, but it can alleviate the phenomenon of food competition, so that each chicken can eat a large amount of food, so as to obtain a flock with high body weight and in line with the target requirements. This method is suitable for the chicken flocks with fast growth rate and difficult to control.
The weekly feeding limit is to feed 5 days a week and stop 2 days, that is, the average distribution of 7 days of feed to 5 days of feeding. This method is not used very much.
The quality limitation method is mainly to limit the nutritional level of feed, so that the content of some nutrients in the diet of breeders is lower than the normal level. Methods of reducing the levels of dietary nutrient elements, such as energy, protein, lysine, are commonly employed. It is worth noting that vitamins, minerals and trace elements can not be reduced at will, still need to meet the supply.
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