표제지
목차
Ⅰ. 서론 8
Ⅱ. 연구사 10
1. 고급육 생산을 위한 거세의 중요성 11
2. 고급육 생산과 사육단계별 사료 급여수준 13
3. 고급육 생산과 비육기간 18
Ⅲ. 재료 및 방법 21
1. 시험 동물 및 시험 설계 21
2. 시험기간 및 장소 21
3. 시험 사료 21
4. 사료 급여 프로그램 설정 25
5. 거세 28
6. 사양관리 28
7. 도체 특성 조사 28
(1) 육질등급판정 29
(2) 육량등급판정 30
8. 경제성 분석 31
9. 통계 처리 31
Ⅳ. 결과 및 고찰 32
1. 비육성적 32
1) 육성기 32
2) 비육전기 37
3) 비육후기 41
4) 전 비육기간 45
2. 도체 성적 50
3. 경제성 분석 54
Ⅴ. 요약 57
Ⅵ. 참고문헌 60
ABSTRACT 69
감사의 글 72
Table 1. Chemical composition of the concentrate diets 23
Table 2. Chemical composition of roughages 24
Table 3. Feeding program for Hanwoo steers applied for control group 26
Table 4. Feeding program for Hanwoo steers applied for treatment group 27
Table 5. Effects of feeding program on the performance of growing phase in Hanwoo steers 35
Table 6. Crude protein(CP) and total digestible nutrient(TDN) intake and their conversion ratio during growing phase of Hanwoo steers 36
Table 7. Effects of feeding program on performance of fattening phase of Hanwoo steers 39
Table 8. Crude protein(CP) and Total digestible nutrient(TDN) intake and their conversion ratio during fattening phase of Hanwoo steers 40
Table 9. Effects of feeding program on performance of finishing Hanwoo steers 43
Table 10. Crude protein(CP) and Total digestible nutrient(TDN) intake and their conversion ratio during finishing phase of Hanwoo steers 44
Table 11. Effects of feeding program on the performance of Hanwoo steers during the entire feeding periods 48
Table 12. Crude protein(CP) and Total digestible nutrient(TDN) intake and their conversion ratio during the entire periods of Hanwoo steers 49
Table 13. Effects of feeding program on the carcass characteristics of Hanwoo steers1) 53
Table 14. Effects of feeding program on the profits of Hanwoo steers 56