Earticle

초록

영어

This study was conducted to elucidate the effects of feeding betaine or monosodium glutamate on the growth and carcass performance of Hanwoo steers according to the fattening stage under high-temperature stress. Farms in an area where THI was 78 or higher for more than 100 days were selected, and 30 head in the early fattening stage (14-15 months of age), 30 head in the mid-fattening stage (16-18 months of age), and 30 head in the late fattening stage (24-25 months of age) were tested, and 10 head were assigned to each treatment group. The experimental group was divided into control, T1 with 96% of the amino acid compound additive and 4% betaine, and T2 with the amino acid complex additive and 4% monosodium glutamate. 50 g per head were fed every morning for a total of 5 months from May 1, 2022 to September 30. In this study, there was no effect of betaine and monosodium glutamate on the growth and rectal temperature of Hanwoo steers at each fattening stage, but monosodium glutamate had a positive effect on the increase in rib eye area and decrease in back fat thickness in steers in the late fattening stage (P<0.05). Therefore, the results of this study indicate that monosodium glutamate did not have a direct effect on the growth of fattening Hanwoo steers, but it is thought to have a positive effect on the rib eye area and back fat thickness through protein metabolism and muscle development.

목차

ABSTRACT
Ⅰ. 서론
Ⅱ. 재료 및 방법
1. 시험 설계 및 사양관리
2. 조사항목 및 분석방법
Ⅲ. 결과 및 고찰
1. 온습도지수
2. 성장 특성
3. 직장온도
4. 도체 특성
Ⅳ. 요약
사사
Ⅴ. 참고문헌

저자

• 엄경환 [ Kyung-Hwan Um | 국립축산과학원 한우연구센터 연구원 ]
• 문성진 [ Sung-Jin Moon | 국립축산과학원 한우연구센터 연구원 ]
• 박명선 [ Myungsun Park | 국립축산과학원 한우연구센터 연구원 ]
• 장기숙 [ Gi-Suk Jang | 국립축산과학원 한우연구센터 연구원 ]
• 백열창 [ Youl-Chang Baek | 국립축산과학원 한우연구센터 연구원 ]
• 장선식 [ Sun-Sik Jang | 국립축산과학원 한우연구센터 연구원 ] Corresponding Author

참고문헌