Comparison of the performance of the laying period of crossbred Korean native chickens from 20 to 40 weeks of age

Hyun Min Cho; Samiru Sudharaka Wickramasuriya; Taeg Kyun Shin; Eunjoo Kim; Jung Min Heo; Young-Joo Yi

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자료유형: 학술저널

저자정보: Hyun Min Cho (Chungnam National University) Samiru Sudharaka Wickramasuriya (Chungnam National University) Taeg Kyun Shin (Chungnam National University) Eunjoo Kim (Chungnam National University) Jung Min Heo (Chungnam National University) Young-Joo Yi (Chonbuk National University)

저널정보: 충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.45 No.4

발행연도: 2018.12

수록면: 687 - 694 (8page)

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This study was conducted to investigate the laying performance of six strains of Korean domestic chickens (KDC 1A, 2A, 3A, 1B, 2B and 3B). A total of 288 20-week-old KDC hens were allocated in a completely randomized design to give 12 replicates per each strain (4 chickens per pen). The chickens were fed commercial diets (i.e., week 20 - 32, crude protein [CP] 18.0% and metabolizable energy [ME] 2,850 kcal/kg; week 32 - 40, CP 17.0% and ME 2,800 kcal/kg) ad libitum together with fresh water during the 20-week experiment. Body weight, age of sexual maturity, egg weight, hen-day egg production (HDP) and feed conversion ratio (FCR) were measured during the experiment period (week 20 - 40). Our results show that strain 3B had an improved (p < 0.05) HDP and FCR compared with the other strains on week 24 - 28. However, strain 3A had an improved (p < 0.05) HDP and FCR compared to the other strains on week 28 - 40. Similarly, strain 3A had a higher egg weight (p < 0.05) compared to the other strains on week 28, 32 and 40. In conclusion, the higher laying performance of strain 3A indicates its potential in the development of a KDC strain with improved commercial laying performance.

#age of sexual maturity #feed conversion ratio #hen-day egg production #Korean domestic chickens

참고문헌 (15)

참고문헌 신청

[학술지(정기간행물)] - 안동현 / 2002 / 한국 토종 닭고기의 정미 성분 중 유리아미노산과 핵산관련물질에 대한 연구 / 한국식품영양과학회지 31 (4) : 547 ~ 552

[학술지(정기간행물)] - 최준호 / 2010 / Differences in the Quality Characteristics between Commercial Korean Native Chickens and Broilers / 한국축산식품학회지 30 (1) : 13 ~ 19

[학술지(정기간행물)] - 조현민 / 2017 / Determination of growth performance of crossbred Korean native chickens for twelve weeks after hatching / Korean Journal of Agricultural Science 44 (4) : 566 ~ 573

[학술지(정기간행물)] - 홍의철 / 2012 / 산란전용 토종 실용계를 생산하기 위한 2원교배 종계의 육성 능력 검정 / 한국가금학회지 39 (3) : 177 ~ 182

[학술지(정기간행물)] - Kang BS / 1997 / Estimation of heterosis for some economic traits in crossbreds between Korean native chicken and Rhode island red I. Hatching and growing performance in crossbreds between Korean native chicken and Rhode Island Red / Korean Journal of Poultry Science 24 : 117 ~ 126

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