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RISS 인기검색어
- 검색키워드
- 저자 : 정명옥(M. O. Jung) (검색결과 4 건)
- 무료
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- 유료
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정명옥(M. O. Jung),최정석(J. S. Choi),이주호(H. J. Lee),이현진(H. J. Lee),강민(M. Kang),최양일(Y. I. Choi) 충북대학교 동물생명과학연구소 2013 동물생명과학연구 Vol.5 No.-
본 연구는 충북관내 닭고기 가공회사로부터 제공받은 육계, 토종닭, 산란노계의 가슴살의 육질 특성을 구명하고자 실시하였다. 수분은 토종닭이 높았으며, 지방은 육계와 산란노계가 높았다. 한편, 회분은 산란노계가 육계와 토종닭에 비해 높았다. 육질특성에서 pH는 육계가 높았으며, 보수력은 토종닭에서 높은 수준이었다. 한편, 전단력에서는 산란노계가 2882.50 g으로 육계와 토종닭에 비해 현저하게 높은 수준이었다. 육색에서 적색도는 산란노계가 육계와 토종닭에 비해 높았다. 관능검사에서 육계와 토종닭이 산란노계에 비해 높은 점수를 나타내었다. 이상의 결과에서 육질특성에서는 육계와 토종닭이 우수한 결과를 나타내었으나 산란노계에서는 고단백과 저지방의 특징을 나타내었으며, 높은 적색도를 나타내었다. This study was conducted to compare the quality characteristics of chicken breast meats among broiler, Korean native chicken and old layer. In chemical composition, Korean native chicken showed higher moisture content than broiler and old layer (p<0.05). Fat content was higher in broiler and old layer than Korean native chicken (p<0.05). In the meat quality characteristics, broiler showed higher pH value than Korean native chicken and old layer (p<0.05). Korean native chicken showed higher water holding capacity value than broiler and old layer (p<0.05). However, shear force and redness values was the highest in old layer. In the sensory characteristics, broiler and Korean native chicken showed higher scores than old layer in tenderness and overall acceptability. As a result, broiler and Korean native chicken showed better meat quality characteristics compared to old layer.
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화식사료가 반추위 미생물에 의한 반추위 분해율에 미치는 영향
장연(Y. Zhang),김 마가렛 노고이(K.M. Nogoy),이예현(Y.H. Lee),강희동(H.D. Kang),정명옥(M.O.Jung),박성준(S.J.Park),최성호(S.H. Choi) 충북대학교 동물생명과학연구소 2017 동물생명과학연구 Vol.9 No.-
The in situ study was conducted to examine the effective degradability of dry matter(EDDM), crude protein(EDCP), ether extract(EDEE) and neutral detergent fiber(EDNDF) in the rumen of boiled total mixed ration(TMR) for late fattening of Hanwoo heifer in comparison with those of not boiled TMR. Three ruminally fistulated non-lactating Hanwoo cows were used in a 2 x 2 Latin square design. The cattle were fed 6.0 kg of not boiled TMR(control) or 6.0 kg(DM basis) of boiled TMR(boiled feed) twice(08:00 and 18:00) daily divided into two in an equal amount. pH, and contents of ammonia-N and total VFA in the rumen were not influenced by the experimental diet. Parameter “a” relevant to degradability of DM(p<0.001), CP(p<0.001), EE(p<0.001) of measured components were significantly higher for control feeding. But, those of NDF was significantly higher for boiled feed feeding(P<0.001). Parameter “b” relevant to degradability of DM was significantly higher in boiled feed feeding (p=0.019). But there are no difference between control and boiled feed in parameter “b” of CP, EE, and NDF. The effective degradabilities of NDF and EE were significantly higher in boiled feed feeding compared with those of control feed feeding in the rumen of Hanwoo cow. Based on these results, we concluded that boiled TMR feed is possible to increased degradation of NDF by rumen microbes.
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한우 사골, 꼬리, 우족 및 잡뼈 추출물의 이화학적 특성
이진규(J. K. Lee),정지택(J. T. Jeong),최정석(J. S. Choi1),정명옥(M. O. Jung),최양일(Y. I. Choi) 충북대학교 동물생명과학연구소 2017 동물생명과학연구 Vol.9 No.-
This study was conducted to investigate the physico-chemical characteristics of various bone extracts in Hanwoo cattle. The experimental materials are as follows; T1(Shank bone extract), T2(Tail extract), T3(Beef feet extract), and T4(The other bones extract). In the proximate composition, the T1 and T2 showed higher moisture and fat contents than those of T3 and T4(p<0.05), and the T3 had the highest protein content among the bone extracts(p<0.05). The quality properties including salinity, sugar content, turbidity and yellowness(b*) values were significantly higher in the T3 than the other bone extracts(p<0.05). However, the pH value of T3 was significantly lower than the other bone extracts. In the mineral contents, calcium contents of bone extracts were 36.33-48.57mg/kg, and the content of phosphorus was the lowest in T1(4.62mg/kg) and T2(19.88mg/kg) was the highest(p<0.05). Contents of sodium and potassium were the highest in T3(215.83mg/kg) and T2(54.59mg/kg), while the content of magnesium was the lowest in T3(12.28mg/kg). In conclusion, these results could be suggested to be the basis information for processed meat extract products industry in korea using Hanwoo bone extract.
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최정석(J. S. Choi),정지택(J. T. Jeong),이진규(J. K. Lee),최영석(Y. S. Choi),정명옥(M. O. Jung),최양일(Y. I. Choi) 충북대학교 동물생명과학연구소 2017 동물생명과학연구 Vol.9 No.-
This study was conducted to determine the effect of boiled feed on carcass characteristics in Hanwoo steers. A total of 37 Hanwoo steers(Approximately 22 months old) were randomly assigned, and the feeding trial was performed for 10 months. The experimental design consisted of control group(Non-boiled feed) and treatment group(Boiled feed) by completely randomized design. Between the control and treatment groups, the carcass weight and backfat thickness values were significantly higher in the control group than those of treatment group(p<0.05). However, the rib-eye area, yield index values(p<0.05) and incidence of A and B grades in the treatment group were higher than the control. There were no significant differences carcass quality traits including marbling, meat color, fat color, texture and maturity between the two groups. As results, feeding of the boiled feed had positive effect on the carcass grade, and was not negative on the meat quality grade in Hanwoo steers.
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