Manipulating Growth Performance and Carcass Characteristics of Hanwoo Heifers by Dietary Means during Growing and Early Fattening Period

Joung Yong Kim; 오성진; Chaehwa Ryu; A-leum Lee; 조상범; 최낙진

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자료유형: 학술저널

저자정보: Joung Yong Kim 오성진 Chaehwa Ryu A-leum Lee 조상범 최낙진

저널정보: 경상대학교 농업생명과학연구원(구 경상대학교 시설원예연구소) 농업생명과학연구 농업생명과학연구 제52권 제5호

발행연도: 2018.1

수록면: 81 - 89 (9page)

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This study was conducted to improve growth performance of Hanwoo heifer and to producehigh quality of meat with dietary means during growing and early fattening period. Particularly,additional energy diet to relieve estrus stress was main purpose in this study. The results of invitro rumen fermentation indicated that there was no negative effect by additional energy diet astreatments. In the feeding trial, twenty Hanwoo heifers(average 10 months age) were allocatedand distributed into two treatments in randomized block design based on body weight. Therewere three growth stages such as growing, early fattening and late fattening periods in thisfeeding program, respectively. In growing stage, there were two treatments consisting of onlytotal mixed ration(TMR) as a control and TMR with additional energy treatment. Theexperimental diets were fed twice a day, and water and mineral were freely accessed. Inadditional energy treatment, 500 g of concentrate diet was fed daily to relieve estrus stress dueto obese with high energy intake. Not outstandingly differences were found across the treatmentsduring entiretrial period. While, unexpectedly greater feed conversion ratio in treatment comparedto the control was found during late fattening period. It seems that the blood cortisol decreasedwith addition energy supplementation compared with the control during trail period. Carcasscharacteristics including carcass weight, back fat thickness, marbling score, meat color, fat color,maturity and texture were not significantly different each other. Rib-eye area, however, wasgreater in the control compared to the treatment(p<0.05). In addition, it appears that yield indexwas tended to be greater in the control. In conclusion, it is suggested that additional energysupplementation to Hanwoo heifer could get a potential in improving meat quality and relievingestrus stress.

참고문헌 (6)

참고문헌 신청

조원모 / 2009 / 조사료원과 출하시기가 거세한우의 발육과 도체특성에 미치는 영향 / 한국초지조사료학회지 29(4):375~382

B. H. Choi / 2002 / Effects of Feeding Patterns and Sexes on Growth Rate, Carcass Trait and Grade in Korean Native Cattle / ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 15(6):838~843

김병기 / 2011 / 한우 거세유무 및 도축월령에 따른 비육능력 및 도체의 이화학적 특성 비교 / 한국축산식품학회지 31(2):257~265

Y. M. Kim / 2002 / Influence of Dietary Addition of Dried Wormwood (Artemisia sp.) on the Performance, Carcass Characteristics and Fatty Acid Composition of Muscle Tissues of Hanwoo Heifers / ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 15(4):549~554

Eung Gi Kwon / 2009 / Effects of Fattening Period on Growth Performance, Carcass Characteristics and Lipogenic Gene Expression in Hanwoo Steers / ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 22(12):1654~1660

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