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http://dx.doi.org/10.5536/KJPS.2011.38.4.331

Productivity and Performance Test of Egg-Type Commercial Korean Native Chickens  

Kang, Bo-Seok (Poultry Science Division, National Institute of Animal Science, RDA)
Hong, Eui-Chul (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Hak-Kyu (Poultry Science Division, National Institute of Animal Science, RDA)
Kim, Chong-Dae (Poultry Science Division, National Institute of Animal Science, RDA)
Heo, Kang-Nyeong (Poultry Science Division, National Institute of Animal Science, RDA)
Choo, Hyo-Jun (Poultry Science Division, National Institute of Animal Science, RDA)
Suh, Ok-Suk (Poultry Science Division, National Institute of Animal Science, RDA)
HwangBo, Jong (Poultry Science Division, National Institute of Animal Science, RDA)
Publication Information
Korean Journal of Poultry Science / v.38, no.4, 2011 , pp. 331-338 More about this Journal
Abstract
The study was conducted to evaluate the production and the performance test of egg-type commercial Korean Native Chickens. A total of 360 female layers were produced from CY${\times}$C (A), CL${\times}$C (B), CG${\times}$C (C) and CW${\times}$C (D) crossbreds kept at National Institute of Animal Science, Korea, and breed during 20~64 weeks to investigate the productivity and the performance. Layers were divided into 4 crossbreds (6 replications/crossbred, 15 heads/replication). Age and egg weight at first egg was no significantly different among crossbreds. Body weight (BW) at first egg of D crossbred was significantly lower compared to that of other crossbreds (P<0.05). Weekly BW of B crossbred was the highest at 20, 30 and 40 weeks of age, but BW of D crossbred was the lowest among crossbreds. Feed intake (FI) of B crossbred was significantly higher compared to the other crossbreds at 20~24, 32~44 and 52~60 weeks of age. FI of D crossbred was significantly lower compared to other crossbreds after the age of 44 weeks (P<0.05). Average egg weight of B crossbred was significantly higher than the other crossbreds at the age of 24~60 weeks (P<0.05). Egg production ratio (%) of C crossbred was significantly higher compared to the other crossbreds for whole test periods (P<0.05). Hen-housed egg production number at 64 weeks of age for A, B, C and D crossbreds resulted in 241.4, 235.6, 232.3 and 227.0, respectively. Feed conversion ratio of A and C crossbreds was lower compared to the other crossbreds at the age of 20~24 weeks and C crossbred was the lowest among the crossbreds at the age of 60~64 weeks. These results provide the basic data which will be helpful to develope the new strains of commercial Korean Native Chickens.
Keywords
crossbred; egg-type Korean Native Commercial Chicken; average egg weight; egg production ratio; hen-house egg production;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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