China is the world's first chicken country, with more than 10 billion broilers and more than 1.3 billion layer chickens per year. From the perspective of categories, chickens are divided into egg type, meat type, and egg and meat combination type, of which the egg type has the highest egg production and the meat type has the lowest egg production. However, from the perspective of breeds, although they all belong to the egg type, the egg production of different chicken breeds also has certain differences. Here are a few high-yielding layer breeds.
1. Highland brown layer chicken. It belongs to the introduction of the matching line, the American breed, the eggshell is brown, the average egg production at 72 weeks old is 319-329 per chicken.
2. Roman brown layer chicken. It belongs to the introduction of the supporting line, German breed, the eggshell is brown, and the average egg production at 72 weeks old is about 320 pieces per chicken.
3. Roman pink layer chicken. It belongs to the introduction of the supporting line, German breed, the eggshell is pink, and the average egg production at 72 weeks old is 295-305 pieces per chicken.
4. Nongda No. 3 short small layer chicken. It belongs to the breeding supporting line, the eggshell is brown, and the average egg production at 72 weeks old is 288-293 per chicken.
5, Jingbai 904 layer chicken. Belonging to the breeding supporting line, the eggshell is white, and the average egg production at 72 weeks old is about 290 per chicken.
6. Big afternoon golden phoenix egg chicken. It belongs to the breeding supporting line, the eggshell is pink, and the average egg production at 72 weeks old is about 301 pieces per chicken.
In summary, the egg production of high-yielding layer chicken breeds is very high, and overall, the egg-laying performance of foreign breeds is slightly higher than that of domestic breeds.