한우 암송아지의 성성숙 전 유지 단백질 요구량 결정
Determination of Crude Protein Requirements for Maintenance of Prepubertal Hanwoo Heifers
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
본 연구는 성성숙 전 한우 암송아지의 일일 유지 단백질(CPm) 요구량을 구하기 위하여 평균체중 143.1kg(실험 1)과 257kg(실험 2)의 각 6두씩을 3수준의 단백질을 급여하는 two 3×3 latin square design에 공시하였다. 실험 1에서는 기초사료로서 timothy 건초를 2.8kg/d/head를 급여(LCP)하면서 분쇄옥수수와 corn gluten meal을 각각 250g과 150g(MCP) 그리고 500g과 300g(HCP) 보충 급여하였다. 실험 2에서는 기초사료로서 timothy 건초를 4.8kg/d/head를 급여(LCP)하면서 분쇄옥수수와 corn gluten meal을 각각 350g과 250g(MCP) 그리고 700g과 500g(HCP) 보충 급여하였다. 실험 1에서의 CP 섭취량은 LCP, MCP, HCP구에서 각각 236.6, 340.1, 459.8g/d 이었고, 대사체중당 조단백질 균형은 각각 0.51, 1.87, 3.20g 이었다. 실험 2에서의 CP 섭취량은 LCP, MCP, HCP구에서 각각 415.2, 606.9, 793.0g/d 이었고, 대사체중당 조단백질 균형은 각각 0.67, 1.03, 2.99g 이었다. 실험 1과 2에서 얻은 CPm 요구량은 각각 4.58과 5.02/BW^(0.75) 이었고 한우 사양표준(농림부, 2007)에서 채택하고 있는 5.56g CP/BW^(0.75) 보다 낮았다.
Abstract
Two trials at different body weights of Hanwoo heifers(average body weight of 143 and 257kg, respectively) were conducted to determine crude protein requirements for maintenance(CPm). Six Hanwoo heifers in each trial were used in two 3×3 Latin square design with three diets containing three levels of CP, 14 days in each period. In trial 1, the diets were based on 2.8kg fresh wt./day/heifer timothy hay(LCP) with supplements of either 250g ground corn and 150g corn gluten meal (MCP) or 500g ground corn and 300g corn gluten meal(HCP). In trial 2, the diets were based on 4.8kg fresh wt./day/heifer timothy hay (LCP) with supplements of either 350g ground corn and 250g corn gluten meal(MCP) or 700g ground corn and 500g corn gluten meal(HCP). In trial 1, CP intakes were 236.6, 340.1, and 459.8g/d for LCP, MCP, and HCP, respectively. Crude protein balances were 0.51, 1.87 and 3.20g/BW^(0.75)/d for LCP, MCP, and HCP, respectively. In trial 2, CP intakes were 415.2, 606.9 and 793.0g/d for LCP, MCP and HCP, respectively. Crude protein balances were 0.67, 1.03, 2.99g/BW^(0.75)/d for LCP, MCP, and HCP, respectively. The maintenance requirements for CP from the regression equation between CP intake and CP balance were 4.58g/BW^(0.75)/d(trial 1) and 5.02g/BW^(0.75)/d(trial 2) and lower than the value(5.56g/BW^(0.75)/d) adopted by Korean Feeding Standards for Hanwoo (2007).
참고문헌 (21)
- A. O. A. C, "Official Methods of Analysis. 15th ed" (1990), Association of Official Analytical Chemists. Washington, D. C
- Ainslie, S. J, "Prediction amino acid adequacy of diets fed to Holstein steers", J. Anim. Sci, 71, pp.1312~1319 (1993)
- Chung, Y. H, "Estimation of energy and protein requirements for Korean native heifers. Ⅰ. Estimation of energy and protein requirements for Korean native heifers by metabolism trial", Korean J. Anim. Sci, 34, pp.293~300 (1992)
- Hannah, S. M, "Influence of protein supplementation on site and extent of digestion, forage intake, and nutrient flow characteristics in steers consuming dormant bluestem-range forage", J. Anim. Sci, 69, pp.2624~2633 (1991)
- Institut national de la Recherche Agronomique, "Alimentation des Bovins, Ovins, et Caprins" (1988), R. jarrige, de. Paris: Institut national de la Recherche Agronomique
- Japan Livestock Industry Association, "Japanese Feeding Standard for Beef Cattle. Tokyo" (2008)
- Kang, S.W, "Studies on nutrient requirement for korean native cows by feeding trials. Ⅰ. Studies on optimum levels of energy and protein supply for nursing cows", Kor. J. Anim. Nutr. Feed, 16, pp.115~124 (1992)
- Kang, S.W, "Studies on nutrient requirement for korean native cows by feeding trials. Ⅱ. Studies on optimum levels of energy and protein supply for pregnant cows", Kor. J. Anim. Nutr. Feed, 16, pp.125~135 (1992)
- 김경훈, "단백질 균형시험에 의한 한우 거세우의 유지 조단백질 요구량", 한국동물자원과학회지, 48(4), pp.533~540 (2006), 한국동물자원과학회
- Krysl, L. J, "Influence of soybean meal and sorghum grain supplementation on intake, digesta kinetics, ruminal fermentation, site and extent of digestion and microbial protein synthesis in beef steers grazing blue grama rangeland", J. Anim. Sci, 67, pp.3040~3051 (1989)
- Lee,S.C, "Energy metabolism and protein utilizability of Korean native bulls for maintenance and growth", 박사, pp.1991
- National Institute of Animal Science, RDA, "Korean Feeding Standard for Hanwoo" (2007)
- National Research Council, "Nutrient requirements of domestic animals: Nutrient requirements of beef cattle. 6th ed" (1984), NAS-NRC, Washinton, D.C
- National Research Council, "Nutrient requirements of domestic animals: Nutrient requirements of beef cattle" (2000), NAS-NRC, Washinton, D.C
- 오영균, "한우 거세우의 성장단계별 CP 급여수준이 단백질 체내 이용성 및 N 배설량에 미치는 효과", 한국동물자원과학회지, 49(3), pp.369~378 (2007), 한국동물자원과학회
- RDA, "Nutrient and Feed Requirements for Korean Native Cattle (Hanwoo)" (1992)
- SAS, "SAS user's guide" (1996), SAS Institute. Inc., Cary, NC
- Stokes, S. R, "Feed intake and digestion by beef cows fed Prairie hay with different levels of soybean meal and receiving postruminal administration of antibiotics", J. Anim. Sci, 66, pp.1778~1789 (1988)
- Susmel, P, "N losses, purine N derivatives excreation and intestinal digestible protein requirements of cows at maintenance", Livestock Prod. Sci, 36, pp.213~222 (1993)
- Thak, T. Y, "Studies on maintenance requirements of energy and protein for korean native cows by metabolism trials", Korean J. Anim. Sci, 25, pp.117~137 (1983)
- Wilkerson, V. A, "Metabolizable protein and amino acid requirements of growing cattle", J. Anim. Sci, 71, pp.2777~2784 (1993)