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Effect of Supplementation Levels of Copra and Palm Meal on Growth Performance and Carcass Characteristics of Hanwoo Steers

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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 investigate whether dietary levels of copra and palm meals affect the growth performance, carcass characteristics, and meat properties of Hanwoo steers. Eighty-one Hanwoo steers were randomly assigned to one of three dietary groups: T1 (conventional level of palm and copra meals), T2 (20% copra meal and 15% palm meal), and T3 (30% copra meal and 20% palm meal). During the growing and early fattening periods, the average daily gains and formula feed intakes of T2 and T3 were higher than that of T1; however, those differences were not statistically significant. The dietary levels of copra and palm meals did not affect carcass weight, back fat thickness, and rib-eye areas. Marbling scores and meat quality grades were lower in T3 than in T1 and T2; however, those differences were not statistically significant. Meat color, fat color, texture, and maturity were similar among the treatment groups. In addition, dietary levels of copra and palm meals did not affect the chemical and fatty acid composition of longissimus dorsi muscles in Hanwoo steers. Thus, the present results indicate that high supplementation levels of copra and palm meals do not negatively affect the growth performance, carcass characteristics, and meat properties of Hanwoo steers.

목차
ABSTRACT
 Ⅰ. 서론
 Ⅱ. 재료 및 방법
  1. 공시동물, 시험구배치 및 사양관리
  2. 조사항목 및 분석방법
  3. 통계 분석
 Ⅲ. 결과 및 고찰
 Ⅳ. 요약
 Ⅴ. 참고문헌
저자
  • 박병기(농협사료) | Byung-Ki Park (Nonghyup Feed Co. LTD.)
  • 안준상(국립축산과학원 한우연구소) | Jun-Sang Ahn (Hanwoo Research Institute, National Institute of Animal Science)
  • 박중국(농협축산연구원) | Joong-Kook Park (Nonghyup Livestock Research Center)
  • 김영수(농협사료) | Young-Soo Kim (Nonghyup Feed Co. LTD.)
  • 송금석(농협사료) | Kum-Seuk Song (Nonghyup Feed Co. LTD.)
  • 임 환(강원대학교 동물생명과학대학) | Hwan Lim (College of Animal Life Sciences, Kangwon National University)
  • 최욱진(강원대학교 동물생명과학대학) | Wook-Jin Choi (College of Animal Life Sciences, Kangwon National University)
  • 서진교(농협사료) | Jin-Kyo Seo (Nonghyup Feed Co. LTD.)
  • 권응기(국립축산과학원 한우연구소) | Eung-GI Kwon (Hanwoo Research Institute, National Institute of Animal Science)
  • 신종서(강원대학교 동물생명과학대학) | Jong-Suh Shin (College of Animal Life Sciences, Kangwon National University) Corresponding author