1. Starbucks 444 is a three-line hybrid chicken cultivated in Canada. It can be distinguished from feathers. It has an average egg production of 265 to 280 eggs at 72 weeks of age, an average egg weight of 61 to 63 grams, and an egg-to-material ratio of 1: ( 2.45~2.7).
2. Nongchang 2 is a two-line matching hybrid chicken cultivated by China Agricultural University. Its 72-week-old average egg production is 255.1 eggs, the average egg weight is 59.8 grams, and the ratio of eggs and eggs is 1:2.55.
3. The B-4 hybrid chicken is a two-line matched hybrid chicken bred by the Institute of Animal Husbandry of the Chinese Academy of Agricultural Sciences. Its 72-week-old average egg production is 254.3 eggs, the average egg weight is 59.6 g, and the ratio of eggs and eggs is 1:2.53.
4. Jingbai 939 Breeding by a Beijing breeder company, the chicken commercial generation primary chicks can be bred from the growth rate of feathers. The chicken's adaptability and disease resistance are extremely strong, and its survival rate is high. It is an excellent powder shell layer chicken breed. At the age of 5 months, the egg laying rate at the peak of egg production can reach 96%, the egg production at 72 weeks of age is 290 to 300 eggs, the average egg weight is 62 grams, and the feeding rate is 2.1 to 2.3: 1.20 to 1.50 kg The weight of the final egg production is 1.80-1.90 kg. The survival rate of broiler chickens is 95%~98%, and the survival rate during laying period is 92%~94%.
5. Nick shell layer chicken This chicken is a matching hybrid chicken bred by the United States Nick International. It is characterized by early production, more eggs, less weight, less material consumption, and strong adaptability. The production performance of the commodity generation is: 150 to 155 days of age production, 325 to 345 egg production at 80 weeks of age, average egg weight of 60 to 62 grams, material to egg ratio of 2.1 to 2.3:1, and 18 weeks old weight of 1.35 kg , The survival rate of egg production period is 89%~94%.
6. The four-line supporting brown-shelled laying hens produced by the Israeli "PBV" poultry Breeding Association. The commodity generation can be distinguished from others by the speed of feather growth. Its production performance is: egg production rate is 50% from 160 to 167 days old, egg number is 290 to 305 at 78 weeks old, egg weight is 62 to 64 grams. The 20-week-old body weight is 1.5 kg, and the daily consumption of the egg-laying period is 99-105 grams. 0 to 20-week-old rearing rate of 94% to 96%, egg production rate of 6% ~ 8%.
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