한우의 도체 형질이 경제성에 미치는 영향

Abstract

본 연구는 한우 농가의 소득에 직접적인 영향을 미치는 경매단가(AP) 및 도체판매가(CP)에 영향을 미치는 도체 특성(근내지방도(MS), 배최장근단면적(LMA), 등지방 두께(BFT), 도체중(CW) 및 육량 지수(MYI))와의 상관관계를 조사하였다. AP의 경우는 근내지방도(MS)가 가장 높은 상관(r=0.73)을 나타내었으며, CP는 도체중이 0.71로 가장 높고, 다음으로 근내지방도가 영향력이 높게 나타났다. 하지만, LMA, MYI는 비교적 낮은 상관을 나타내었다. 이상의 결과 농가의 소득의 향상과 한우의 MS 및 CW 향상이 유의적인 상관도가 있었다. The objective of this study was to investigate factors related to carcass traits of Hanwoo. In the statistical model developed in this study, slaughterhouse, carcass year, carcass month and sex effects were used as fixed effects and carcass traits (carcass weight, marbling score, loineye muscle area, backfat thickness and meat yield index) as covariations. The grading service data for 285,515 Hanwoo, which were evaluated by Animal Products Grading Service from 2005 to 2007, were used in this study. The partial R-square values of the fixed effects and the marbling score (MS), loineye muscle area, back-fat thickness, meat yield index and carcass weight (CW) on auction prices (AP) of the carcass and carcass price (CP) of the animals were estimated. The most important estimated trait in AP was MS. However, CW is the most important estimated trait on the CP and the MS also has secondly significant effect on the CP. In conclusion, MS as well as CW should maximize the farmer profits and establish a breeding scheme for Hanwoo.