본 시험은 사료용 벼의 생산 및 이용 확대를 위해 한우에 대한 급여 효과를 규명하는 것을 목적으로 수행되었다. 경기도 평택에서 생산된 사료용 벼를 활용하여 TMR 사료를 조제하였고 한우 육성우 16두를 대상으로 29개월령까지의 생장능력과 육질특성 변화를 조사하였다. 생산된 사료용 벼 사일리지는 수분함량이 64.02%, 조단백질 함량이 7.54%로 나타났으며 육성기에는 약 45% 정도를 배합하였고 비육기(전기, 중기 및 후기)에는 각각 35, 15 및 9% 로 낮추어 배합하였다. 체중은 WCR-TMR 급여구가 비육중기와 후기에 대조구에 비해 유의적으로 무거웠고, 종료시(29개월령)는 대조구가 631 kg/head 였으나 WCR-TMR급여구는 647 kg/head 로 무거웠다. 일당증체는 육성기와 비육전기에 WCR-TMR급여구가 유의적으로 높았으며 비육중기 및 후기는 차이가 없었다. 전 기간에 있어서는 0.71 vs 0.75 kg/head/day 로 WCR-TMR급여구가 높게 나타났다. 육량에 있어서는 대조구의 등지방 두께(11.7 mm)가 WCR-TMR급여구(9.3 mm)보다 유의적으로 두껍게 나타났다(P<0.05). 등심단면적, 도체중 및 육량지수에서는 차이가 없었다. 육질에 있어서는 Marbling score가 WCR-TMR급여구에서 높게 나타났으며(P<0.05), 육색, 지방색, 조직감 및 성숙도에 있어서는 유의적인 차이가 나타나지 않았다. 이상의 결과를 종합하여 볼 때 사료용 벼 위주 TMR 급여는 가축의 생산성을 개선시켰으나 육질에 있어서는 큰 차이를 보이지 않았다. 따라서 조사료 사정이 열악한 나라에서는 사료용 벼의 생산 및 이용이 필요한 것으로 판단된다.

This experiment was conducted to the purpose of evaluating the effect of feeding on Korean Native Cattle to expand the production and utilization of whole crop rice (WCR). TMR (Total mixed ration) feed was prepared by using WCR produced in Pyeongtaek, Gyeonggi-do, and the growth capacity and meat quality characteristics of 16 Korean Native Cattle raised up to 29 months of age were investigated. The produced WCR silage for feed had a moisture content of 64.02% and a crude protein content of 7.54%, and was blended with about 45% during the growing season, and lowered to 35, 15 and 9%, respectively, in the fattening period (early, middle and late stages). The body weight of the WCR-TMR feeding group was significantly higher than that of the control in the middle and late fattening stage, and at the end (29 months of age), the control group was 631 kg/head, but the WCR-TMR feeding group was 647 kg/head, which was higher. The average daily gain was significantly higher in the WCR-TMR feeding group in the growing and early fattening period, and there was no difference in the mid- and late fattening period. In the whole period, 0.71 vs 0.75 kg/head/day, WCR-TMR feeding group was high. In terms of meat quantity, the back fat thickness of the control group (11.7 mm) was significantly thicker than that of the WCR-TMR fed group (9.3 mm) (P<0.05). There was no difference in Rib eye area, Carcass weight and Meat yield index (P>0.05). In terms of meat quality, the Marbling score was higher in the WCR-TMR feeding group (P<0.05), and there were no significant differences in Meat color, Fat color, Texture and Maturity. Considering the above results, TMR feeding mainly on whole crop rice silage for feed improved the productivity of livestock, but there was no significant difference in meat quality. Therefore, it is judged that it is necessary to produce and use the whole crop rice for feed in countries with poor forage conditions.

ABSTRACT
Ⅰ. 서론
Ⅱ. 재료 및 방법
    1. 사료용 벼 사일리지 조제
    2. 사양시험
    3. 사료가치 및 육량 분석
    4. 체중측정
    5. 통계처리
Ⅲ. 결과 및 고찰
    1. 원료의 사료가치
    2. 배합비의 작성
    3. 생장특성
    4. 육질특성
Ⅳ. 요약
Ⅵ. REFERENCES

• 김종근(서울대학교 국제농업기술대학원/그린바이오과학기술연구원 친환경경제동물연구소) | Jong Geun Kim (Graduate School of International Agricultural Technology, SNU/Research Institute of Eco-friendly Livestock Science, GBST, SNU) Corresponding author
• 정은찬(서울대학교 국제농업기술대학원) | Eun Chan Cheong (Graduate School of International Agricultural Technology, SNU)
• 이연분(서울대학교 국제농업기술대학원) | Yan Fen Li (Graduate School of International Agricultural Technology, SNU)
• 김학진(그린바이오과학기술연구원 친환경경제동물연구소) | Hak Jin Kim (Research Institute of Eco-friendly Livestock Science, GBST, SNU)
• Farhad Ahmadi(그린바이오과학기술연구원 친환경경제동물연구소)
• 김맹중(그린바이오과학기술연구원 친환경경제동물연구소) | Meing Joong Kim (Research Institute of Eco-friendly Livestock Science, GBST, SNU)