The Performance Test in Crossbreds of Korean Native Chickens for the Establishment of New Lines
2014
Lee, M.J., RDA, Seonghwan, Republic of Korea | Heo, K.N., RDA, Seonghwan, Republic of Korea | Choi, H.C., RDA, Seonghwan, Republic of Korea | Hong, E.C., RDA, Seonghwan, Republic of Korea | Kim, J.D., RDA, Seonghwan, Republic of Korea
The goal of this study was to evaluate the growth performance of crossbred strains using Korean native chicken (KNC). The data were collected from 2012 through 2013 at Poultry Science Division, National Institute of Animal Science, Korea. The number of chicks analyzed in this study was 375. Crossbred were (A) RXS, (B) DXH, (C) DXS, (D) CXY and (E) YXH. The fertility rates of strains were 94.9% in crossbred A, 91.9% in crossbred B, 91.8% in crossbred C, 89.7% in crossbred D and 93.8% in crossbred E, respectively. The fertility was highest in crossbred A, but crossbred C showed the lowest (p0.05) based on the hatchability. The crossbreds B and C exhibited a superior performance on body weight gains during growing stages but crossbred D showed the lowest (p0.05). The feed intake was to the pattern of body weight. The feed intake of crossbred D was significantly lower than other crossbreds. Also, feed conversion ratio of crossbred D showed the lowest (p0.05). Egg production ratio of crossbred D was significantly higher compared to the other crossbreds. These results suggest that the development of new crossbreds of commercial Korean Native Chickens should be required for better performance.
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