Earticle

초록

영어

This study aimed to investigate the effects of amino acid complex additives, such as protected vitamin C (VC) or detoxified sulfur (DS), on the growth and metabolism of Hanwoo cattle under high-temperature conditions. Accordingly, farms in Temperature-Humidity Index (THI) regions ranging from 78 to 89 for over 100 days were selected. The experimental groups were control, T1 (lysine + methionine + VC, 50 g/head/day), and T2 (lysine + methionine + DS, 50 g/head/day) with 70, 77, and 71 animals each. The range of the THI for 115 days was 78-89, and this occurred in most of the experiment days. The results showed that there was no significant difference in rectal temperature among the groups. The body weight increased to 786.4 and 809.0kg in the T1 and T2 groups, respectively, compared to the control group (p<0.05). Linoleic acid showed a high result of 2.01% in the T1 group compared to the control group (p<0.05). Unsaturated fatty acids were higher at 55.70 and 56.54% in the T1 and T2 groups, respectively, compared to the control group (p<0.05), and the omega 6/3 ratio was reduced to 20.10% (p<0.05). These findings indicate that T1 has a positive impact on growth, meat quality, and fatty acid composition compared to the control group. In conclusion, amino acid complex with VC improved the body weight of Hanwoo steers and the unsaturated fatty acids and essential amino acids of their meat; however, further research is needed to clarify this impact on carcass performance.

목차

ABSTRACT
Ⅰ. 서론
Ⅱ. 재료 및 방법
1. 공시동물, 시험구 배치 및 사양관리
2. 조사항목 및 분석방법
Ⅲ. 결과 및 고찰
1. 온습도지수
2. 사양성적
3. 도체 특성
4. 육질특성
Ⅳ. 요약
Ⅴ. 참고문헌

저자

• 엄경환 [ Kyung-Hwan Um | 국립축산과학원 한우연구소 연구원 ]
• 박명선 [ Myung-Sun Park | 국립축산과학원 한우연구소 연구원 ]
• 문성진 [ Sung-Jin Moon | 국립축산과학원 한우연구소 연구원 ]
• 이현정 [ Hyun-Jeong Lee | 국립축산과학원 한우연구소 연구원 ]
• 장기숙 [ Gi-Suk Jang | 국립축산과학원 한우연구소 연구원 ]
• 장선식 [ Sun-Sik Jang | 국립축산과학원 한우연구소 연구원 ] Corresponding Author

참고문헌