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한우 미경산우의 성장단계별 발육 및 출하시기별 도체특성에 관한 연구 KCI 등재

Studies on Growth Performance and Carcass Characteristics of Fattening Hanwoo Heifers Slaughtered at Different Ages

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동물자원연구 (Annals of Animal Resources Sciences)
강원대학교 동물자원공동연구소 (Institute of Animal Resources Kangwon National University)
초록

This study was conducted to determine the growth performance and carcass characteristics of fattening Hanwoo heifers slaughtered at different ages. Twenty one Hanwoo heifers were randomly allocated to three groups (32, 36 and 40 months age), with 7 steers each, respectively. In the result, initial and final body weights were 125.6 and 651.0 kg, respectively. Average daily gain was significantly low at final stage compared with other growth stages (p<0.05). Dry matter intake was the peak at the intermediate fattening stage (p<0.05). The feed conversion ratio was significantly lower at growing stage compared to other stages (p<0.05). In yield traits, carcass weight was greater in 40 months age group compared to other groups (p<0.05). Yield index was greater in 32 months group compared to 40 months of age (p<0.05). Marbling score, meat color, fat color, texture, and maturity were not different among groups (p>0.05). However, marbling score tended to be increased in 40 months age group (5.9) compared to other groups. The appearance rate (%) of meat quality grade more than 1+ was greater at 40 months old group than other groups.

목차
ABSTRACT   Ⅰ. 서론   Ⅱ. 재료 및 방법    1. 공시동물 및 시험설계    2. 시험사료 및 사양관리    3. 조사항목    4. 통계분석   Ⅲ. 결과 및 고찰    1. 발육 및 사료섭취량    2. 혈액성상    3. 도체 특성   Ⅳ. 요약   사사   Ⅴ. References
저자
  • 이상민(농촌진흥청 국립축산과학원) | Sang Min Lee
  • 장선식(농촌진흥청 국립축산과학원) | Sun Sik Chang
  • 정기용(농촌진흥청 국립축산과학원) | Ki Yong Chung
  • 김형철(농촌진흥청 국립축산과학원) | Hyeong Cheol Kim
  • 권응기(농촌진흥청 국립축산과학원) | Eung Gi Kwon
  • 박병기(농협사료) | Byung Ki Park
  • 이은미(농촌진흥청 국립축산과학원) | Eun Mi Lee
  • 김현섭(농촌진흥청 국립축산과학원) | Hyeon Shup Kim
  • 강희설(농촌진흥청 국립축산과학원) | Hee Seol Kang
  • 이성실(경상대학교 응용생명과학부) | Sung Sill Lee
  • 조영무(농촌진흥청 국립축산과학원) | Young Moo Cho Corresponding author