The Performance of Broiler Breeds and It′s Advence in the Future

육계의 개량현황과 전망

The improvement of broiler breed has short history compare with layer breed, but there was much progresses in growth rate and feed requirement. The body weight was improved from 1.3kg at 954days of age in 1934 to 2.3kg at 49 days of age in 1991, and feed requirement was changed from 4.3 in 1934 to 2.06 in 1991. The poultry geneticians estimated that the age required to reach 2kg body weight will be reduced 28.7 days and feed requirement improve to 1.33 in 2006.

육용계의 능력 개량 역사는 산란계에 비하여 비교적 짧지만 그동안 많은 발전하여 왔는데 1934년에 95일 사육에 1.3kg이였던 육계가 1991년에는 7주에 2.3kg에 도달하였고 사료요구율도 1934년에 4.3에서 1991년에는 2.07로 낮아졌으며 가금 육종학자들은 2006년대에는 육계의 2kg 도달 일령은 28.7일로 단축되고 사료요구율은 1.33으로 개선될 것으로 전망하고 있다.