Newborn selection Select the chicks that meet the requirements of the breed's physical appearance or new varieties (lines) for breeding and appearance, and observe the speed of the birds and select them according to the requirements. On this basis, the broiler chickens with high quality broiler chickens, local laying hens, and local chickens were selected for each family. Only three or four hens with a large number of eggs were selected. In 20; the rest of the hen's offspring male and female identification, leaving only the mother. Brooding period selection Fast-quality high-quality broiler broilers should be selected at 35 days of age, and fast-selected high-quality broiler mothers, medium-speed high-quality broilers, meat-type local chicken breeds, local specialties, and regional chickens should be selected for direction development at the age of 42 days; The development of meat direction for egg-type and dual-use local chicken breeds and slow-quality high-quality broilers should be selected 2 weeks or 91 days before launch. For the broiler chicken mother line, local chicken layer new breed, local chicken breed egg direction selection, each family chooses to leave 5 - 6 progeny cocks that have more than one parent and have weights near the average weight of the whole group of cocks; hens All species are kept, no less than 2,000. For high quality broiler fathers, feed conversion rates can be determined immediately after selection in the brooding period for the individuals retained, leaving 150 cockerels and 1,000 hens with high feed conversion rates. 18 weeks of age at the end of the breeding period Choose individuals who are healthy, have a compact coat, have solid bones, have large, bright red crowns, moderate body weight, feather color, skin color, tan color, and crown type that meet the breed's characteristics or new breed breeding requirements. For each family bred by the family, 4 to 5 males were selected, and no more than 120 males were not bred according to their families. The sexual reflexes of the males were required to be good; all the hens that met the above requirements were retained. Cock sex mature choice Fast high quality broiler cocks were selected at 24 weeks of age and 25 weeks of age, and other breeds (lines) were selected at 22 weeks of age and 23 weeks of age. Three broilers were selected for each family bred by family, and 100 cockerels were not selected for broiler breeding. It is required to retain a large amount of semen and a milky white color, with high sperm density and high vitality. Egg production period selection The choice of direction for high-quality broiler mothers, local breeds, and local chicken breeds should be based on the number of individual eggs produced at 40 weeks of age, the average number of eggs produced by the family, and the average number of eggs produced by the entire family. Individuals with a higher number of eggs than the average number of eggs produced by the family were higher than the average number of eggs produced in the entire group. The average number of eggs laid was lower than the average number of eggs in the entire family. The number of individual eggs in the family exceeded the population. Individuals with an average egg production of 10 or more. Or, based on the average number of eggs produced in the 40-week-old family and the average number of eggs in the entire group, the average number of eggs in the selected family was higher than the average number of eggs in the entire family. For local broiler breeds with high-quality broiler hens and unfamiliar pedigrees, 60-80 cocks and 600-800 hens were selected according to body weight, body condition and appearance. For high quality broiler mothers, local broiler breeders, and local chicken breeder egg use orientation, select 2 cockerels and 600-800 hens per family from high to low sibling production. Sunflower Seeds,Sunflower Kernels,Bulk Sunflower Seeds,Shelled Sunflower Seeds Wuyuan county dafeng oil food co.,ltd , https://www.sundafengfoods.com