First, a reasonable choice: With excellent chickens, without a reasonable selection, let them mess with, then the resulting offspring will not be good. Therefore, in the same breed of chickens, a particularly excellent cock is selected for every 8-10 hens and has unique properties such as fertilization rate, hatching rate, strong disease resistance, or a distinctive appearance. The advantage of using this rooster is to select hens with similarly good traits for mating. This matching result will significantly increase the production performance of offspring. Second, the purification and selection: There are many excellent varieties of chickens, and in one area, they are selected to adapt to the local natural conditions, production performance and economic value, and popular varieties of chicken. Practice has proved that it is better to promote a variety in a region, so that the speed of development is rapid, the effect is significant, and it is not easy to mix. At the same time, if the chickens with disordered coats, premature moulting, too late egg production, and particularly small eggs are found, they should be transferred or eliminated immediately. Third, the establishment of hatching brooding points: In the area of ​​breeder chicken promotion, each key field to set up hatching brooding point, the introduction of the fine breed eggs in the point of incubation, focus on raising about 10 days and then sold to farmers to feed. At the same time, they should also be taught to breed chickens with scientific management and disease prevention techniques. 4. Strictly choose to keep the breeder chicken: When the introduced breeder chicken reaches a certain amount, the local inferior breeder chickens should be gradually eliminated, from less to more, from rooster to hen, and finally all replaced by good breeder chickens. In the process of achieving improved seedlings, attention should also be paid to the selection of breeding chickens. In particular, the selection and breeding of breeding roosters should be strengthened, and identification of improved varieties should be carried out. Gradually breeder chick breeding systems should be gradually established so that excellent and productive chickens can be sustained for a long time. keep it up. China Agricultural Network Editor
2015 New Permanent Makeup Machine
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