보고서 정보
주관연구기관 |
경상북도축산기술연구소 |
연구책임자 |
김병기
|
참여연구자 |
박용수
,
이지홍
|
보고서유형 | 최종보고서 |
발행국가 | 대한민국 |
언어 |
한국어
|
발행년월 | 2007-05 |
과제시작연도 |
2004 |
주관부처 |
농림부 |
사업 관리 기관 |
농림기술관리센터 Agricultural Research & Development Promotion Center |
등록번호 |
TRKO201100002679 |
과제고유번호 |
1380000438 |
사업명 |
농림기술개발 |
DB 구축일자 |
2013-04-18
|
초록
▼
가. 연구개발 목표와 내용
본 연구는 부가가치가 높은 한우 고급육을 생산하기 위하여 농후사료의 조단백질과 ADF수준을 결정함으로서 거세한우에 대한 재현성 높은 비육기술을 확립함으로 한우산업의 경쟁력 제고를 목표로 한다.
세부1과제는 거세한우에 대하여 비육단계별 사료중의 ADF수준과 그 차이에 따른 성장 및 육질에 미치는 영향을 조사하였고
협동과제는 거세한우에 대하여 비육단계별 농후사료중의 조단백질수준과 그 차이에 따른 성장 및 육질에 미치는 영향을 조사하였다.
나. 연구개발의 범위 및 조사항목
거세한우 총
가. 연구개발 목표와 내용
본 연구는 부가가치가 높은 한우 고급육을 생산하기 위하여 농후사료의 조단백질과 ADF수준을 결정함으로서 거세한우에 대한 재현성 높은 비육기술을 확립함으로 한우산업의 경쟁력 제고를 목표로 한다.
세부1과제는 거세한우에 대하여 비육단계별 사료중의 ADF수준과 그 차이에 따른 성장 및 육질에 미치는 영향을 조사하였고
협동과제는 거세한우에 대하여 비육단계별 농후사료중의 조단백질수준과 그 차이에 따른 성장 및 육질에 미치는 영향을 조사하였다.
나. 연구개발의 범위 및 조사항목
거세한우 총 60두를 공시하여 세부과제는 비육단계별 사료중의 ADF수준에 따른 비육능력과 육질에 미치는 영향을 경상북도축산기술연구소에서, 협동과제는 비육단계별 농후사료의 조단백질 수준에 따른 비육능력과 육질에 미치는 영향을 구명하기 위하여 영남대학교에서 구분하여 수행하였다. 주요 조사항목은 비육단계별로 한우사양시험(체중, 증체량, 사료섭취량), 도체 특성(육량, 육질형질)과 이화학적 특성, 지방산 조성 및 혈액성분(콜레스테롤 등) 등을 분석하였다.
세부적으로 아래와 같은 연구내용을 연차별로 나누어 조사하였다.
○ 1 년차
농후사료의 조단백질 및 ADF수준에 따른 배합비 작성
비육단계별 사료중의 ADF수준에 따른 육성기 발육조사
비육단계별 농후사료의 조단백질 수준에 따른 육성기 발육조사
○ 2 년차
비육단계별 사료중의 ADF 수준에 따른 비육전기 발육조사
비육단계별 농후사료의 조단백질 수준에 따른 비육전기 발육조사
○ 3 년차
비육단계별 사료중의 ADF 수준에 따른 비육후기 발육조사
비육단계별 농후사료의 조단백질 수준에 따른 비육후기 발육을 조사한다.
Abstract
▼
□ Study 1 : The effects of different ADF levels for each fattening phase on performances and beef quality of Hanwoo steers.
This study was performed to determine the effects of ADF levels on performances and beef quality of Hanwoo steers. Thirty(30) Hanwoo steers were allocated into either contro
□ Study 1 : The effects of different ADF levels for each fattening phase on performances and beef quality of Hanwoo steers.
This study was performed to determine the effects of ADF levels on performances and beef quality of Hanwoo steers. Thirty(30) Hanwoo steers were allocated into either control or treatment group. ADF levels for growing, fattening, and finishing phase were 18, 15, and 15% for the control animals and those were 20, 17, and 13% for treatment animals. performances, carcass characteristics, physico-chemical characteristics, fatty acid composition, and chemical composition of plasma were determined.
1. Body weight gain during growing phase for control and treatment group were 307.1kg and 319kg, respectively, showing 8.91% higher(P>.0.6302) in treatment group than control group. Treatment group showed higher(P>0.5020) daily gain of 0.76kg than that of 0.70kg in control group.
2. Final body weight for control and treatment group was 721.4kg and 730.7kg for control and treatment group, respectively. Total body weight gain in treatment group(555.9kg) was 9.1kg higher than that in control group(546.8kg). Daily gain and feed requirement during overall period showed no significant differences between control group, 0.76kg and 12.02, respectively, and treatment group, 0.78kg and 11.30, respectively.
3. Total concentrate and roughage intake during overall feeding period for control group was 4,980.4kg and 1,590.8kg, respectively, while those for treatment group was 4,541.7kg and 1,739.5kg, respectively, showing 9.3% higher roughage intake in treatment group than control group. Total feed intake, however, was higher in control group(6,571.2kg) than treatment group(6,281.1kg).
4. There was no difference in average cold carcass weight between control(409.5kg) and treatment(411.1kg) group. Treatment group(14.23mm and 1.26, respectively) tended to show thinner(P>0.3020) and better(P>0.3930) backfat thickness and maturity than control group(17.53mm and 1.33, respectively). Treatment group showed 25% improved quality grade showing 0.88 comparing 0.66 in control group with no statistical significance(P>0.4526). There were no differences in physico-chemical characteristics and fatty acid composition between two groups.
5. Total cholesterol and glucose concentrations in Hanwoo steers ranged in 104.70~185.50mg/$d{\ell}$ and 71.17~79.00mg/$d{\ell}$, respectively, and the level of GOT, GPT, and BUN were 48.47~85.20u/$\ell$, 18.00~27.16mg/$d{\ell}$, and 13.46~15.03mg/$d{\ell}$, respectively.
The results obtained in the current study implicate that the optimum ADF and NDF intake during growing, fattening, and finishing phases would be 25.00~27.00% and 41.00~45.00%, 17.00~19.00%, and 30.00%, and 13.00% and 22.00%, respectively. Regulation of ADF and NDF levels and feeding good quality roughages during growing phase may improve body weight gain, feed intake, and quality grade in Hanwoo steers.
□ Study 2 : The effects of different crude protein levels in the concentrates for each fatteing phase on performances and beef quality of Hanwoo steers
This study was conducted to determine the effects of different crude protein levels in the concentrates on performances and beef quality of Hanwoo steers. Thirty(30) Hanwoo calves were randomly allocated into either control or treatment group and castrated by surgical method. crude protein levels in concentrates for growing, fattening, and finishing phases were 14, 13, and 11% for control group and were 16, 15, and 14% for treatment group. performances, carcass characteristics, physico-chemical characteristics, fatty acid composition, and chemical composition of plasma were determined.
1. Body weight gain during growing phase for control and treatment group were 218.9kg and 235.0kg, respectively, showing higher weight gain in treatment group than control group. Treatment group showed significantly(P<0.0548) higher daily gain of 0.90kg than that of 0.84kg in control group.
2. Final body weight for control and treatment group was 715.3kg and 732.0kg for control and treatment group, respectively. Total body weight gain in treatment group(599.0kg) was 21.9kg higher than that in control group(577.1kg). Daily gain and feed requirement during overall period showed no significant differences between control group, 0.75kg and 11.18, respectively, and treatment group, 0.77kg and 10.91, respectively.
3. There was no difference in average cold carcass weight between control(411.9kg) and treatment(419.9kg) group. And there were no significant differences in M. longissimus dorsi area, backfat thickness, and yield grade index according to the protein levels in concentrates. Treatment group tended to improve improved quality grade upto 15.4% comparing control group with no statistical significance. There were no differences in physico-chemical characteristics and fatty acid composition between two groups.
4. BUN levels in plasma of treatment group during growing and finishing phases were significantly higher(P<0.0034 and P<0.0052, respectively), and GOT showed significant differences(P<0.0134 and P<0.0233, respectively) with no consistent tendency. There were no differences in plasma Glucose, GPT, and Total cholesterol leves between group.
In conclusion, increasing crude protein levels in concentrates of Hanwoo steers during growing phase might be beneficial for the improvement body weight gain and beef quality although some results obtained in the current study are conflicting. Further studies to confirm and to apply these results are necessary.
목차 Contents
- 표지...1
- 제출문...2
- 요약문...3
- SUMMARY...9
- 목차...15
- 제 1 장 연구개발과제의 개요...17
- 제 1 절 연구개발의 목적...17
- 제 2 절 연구개발의 필요성...17
- 1. 기술적 측면...18
- 2. 경제.산업적 측면...19
- 3. 사회문회적 측면...19
- 제 3 절 연구개발의 범위...19
- 제 2 장 국내외 기술개발 현황...22
- 1. 국외현황...22
- 2. 국내현황...22
- 제 3 장 연구개발수행 내용 및 결과...24
- 제 1 절 비육단계별 사료중의 ADF수준 차이가 거세한우 비육능력 및 육질에 미치는 영향...24
- 1. 서론...24
- 2. 재료 및 방법...25
- 3. 결과 및 고찰...31
- 4. 요약...60
- 제 2 절 비육단계별 농후사료의 조단백질 수준차이가 거세한우의 육질에 미치는 영향...62
- 1. 서론...62
- 2. 재료 및 방법...63
- 3. 결과 및 고찰...70
- 4. 요약...96
- 제 4 장 목표달성도 및 관련분야에의 기여도...98
- 제 1 절 연차별 연구개발 목표의 달성도...98
- 제 2 절 관련분야에 기여도...99
- 제 5 장 연구개발결과의 활용계획...100
- 제 6 장 연구개발과정에서 수집한 해외과학 기술정보...100
- 제 7 장 참고문헌...101
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