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논문 기본 정보

자료유형
학술저널
저자정보
Gye-Woong Kim (Kongju National University) Ji-Hyuk Kim (Kongju National University)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.44 No.3
발행연도
2017.9
수록면
375 - 383 (9page)

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This study was conducted to investigate the effects of sex, environmental factors, and feeding system on the carcass traits of Hanwoo (Korean Native Cattle). Data were collected from 7,866 heads slaughtered in Chungnam province during one-year period. Using the collected carcass traits data which greatly influence a Hanwoo’s carcass grade, the effects of sex class, slaughter season, and feeding system were estimated. Backfat thickness of steers was significantly higher than that of bulls (p < 0.05). Marbling score was also the highest in steers when compared with cows and bulls (p < 0.05). Live weight and carcass weight were significantly higher in winter than in summer (p < 0.05). However, backfat thickness was significantly lower in summer than in other seasons (p < 0.05). Marbling score was higher in spring and fall than in summer and winter (p < 0.05). In terms of feeding systems, TMR (Total mixed ration) and TMF (Total mixed fermentation feed) fed groups showed the highest carcass grade (p < 0.05). However, the group fed TMR and formula feed at the final fattening period showed the lowest performance (p < 0.05) and it is assumed that some stress was associated to the feed change. The results reconfirm that castration may be recommended in order to improve meat quality and marbling scores in bulls. There was no consistent trend of seasonal effects of slaughter on carcass traits although some traits were significantly affected. Regarding the feeding system, either TMR or TMF can be supplied to achieve high feed efficiency and good carcass characteristics in Hanwoo.
#carcass traits #feeding system #Hanwoo #sex class #slaughter season

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
References

참고문헌 (21)

참고문헌 신청
[학술지(정기간행물)] - Björntorp P / 1996 / The regulation of adipose tissue distribution in humans / International Journal of Obesity Related Metabolic Disorders 20 : 291 ~ 302 google schola [학술지(정기간행물)] - Cosgrove GP / 1996 / Effects of post-pubertal castration and diet on growth rate and meat quality of bulls / Proceedings of the New Zealand Society of Animal Production 56 : 390 ~ google schola [학술지(정기간행물)] - 엄승훈 / 2016 / Analysis of environmental effects affecting reproductive traits of primiparous and multiparous Hanwoo / Korean Journal of Agricultural Science 43 (3) : 369 ~ 378 Crossref [학술지(정기간행물)] - Garcia LG / 2008 / National beef quality audit-2005 : Survey of targeted cattle and carcass characteristics related to quality, quantity, and value of fed steers and heifers / Journal of Animal Science 86 : 3533 ~ 3543 google schola [학위논문] - Hong SG / 1996 / Study on the development of fattening system for high quality beef production of Hanwoo / Ph.D. / Chungbuk National Univ. google schola

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