• Korean Journal of Poultry Science
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• 제29권1호
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• pp.51-57
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• 2002

This study was conducted to investigate the chemical composition in different portions of domestic broiler meat. The broilers were obtained from slaughtering house, where the scale of slaughtering was more than 50,000 heads per day. The carcasses were separated by cutting into 7 portions such as wing, drumstick, drummette, breast, skin, thigh, and tenderloin. Moisture contents of drummette and thigh were 73.37% and 73.19%, whereas those of drumstick and wing were 75.65% and 75.76%, respectively. The portions of breast parts contained 4.20% higher protein, but 4.17% lower fat than those of leg parts. Overall mineral contents were relatively high for thigh when compared with breast. The content of Fe was higher by 1.8 folds(7.3ppm) in thigh than that in tenderloin(4.0ppm) and the content of Zn was higher in drummette than that in tenderloin. For amino acid compositions, the tenderloin contained more glutamic acid and methionine than the other portion meats. The portions of drumstick(3.97mg/g) and thigh (3.24mg/g) were higher in collagen contents than the other Parts. Wing portion had the lowest collagen content of 2.64mg/g, which was due to the removal of its skin.

• Korean Journal of Poultry Science
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• 제48권4호
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• pp.239-253
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• 2021

This study investigates the metabolomic changes in breast and thigh meat from Cobb and Ross 308 chickens regarding the rearing environment. One-day-old Cobb and Ross broilers were raised for 35 days in conventional and animal welfare farms with, amongst others, different floor sizes, stock densities, and ammonia concentrations. One-dimensional ¹H nuclear magnetic resonance, orthogonal partial least squares-discriminant analysis (OPLS-DA), and pathway analyses were performed to analyze the metabolomic properties of broiler meat. For breast meat, only those from the Ross strain could be separated according to the environment in the OPLS-DA plot. Ross breast meat from animal welfare farms showed significantly higher acetate, anserine, creatine, and inosine monophosphate content than those from conventional farms (P<0.05). In contrast, for thigh meat, the Cobb strain was differentiated using OPLS-DA. The contents of five metabolites, such as glucose and lactate, were higher in thigh meat from animal welfare farms; however, nine metabolites, including seven free amino acids, were lower compared to those from conventional farms (P<0.05). Pathway analysis was performed to interpret the biological changes in chicken meat based on environmental factors. The results indicated that the animal welfare environment led to significant changes in four metabolic pathways in Ross breast meat and in 20 metabolic pathways in Cobb thigh meat (P<0.05). In conclusion, the animal welfare environment could influence the metabolomic properties of Ross breast meat and Cobb thigh meat, which may affect the sensory quality of meat.

• Food Science of Animal Resources
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• 제29권6호
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• pp.695-701
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• 2009

This study was performed to evaluate the effectiveness of biological critical control points using the genetic profile of Escherichia coli isolates from pork cutting plants. Samples were collected from carcasses, equipment (knife, table, glove, transport belt, boning and skinning machine), the environment (wall and floor), and meat cuts during the cutting process from two plants. Pulsed-field gel electrophoresis (PFGE) was used to characterize the E. coli isolates. An identical genotype was detected from the carcasses, equipment, environment, and final meat cuts, and showed that the incoming carcasses, which were contaminated during transportation from slaughterhouses, were a major source of E. coli that was spread throughout processing. Also, consistent cross-contamination due to improper cleaning and disinfection procedures was another possibility. As a result, incoming carcasses and cleaning procedures should be considered critical control points in pork cutting plants, since a heating step is not used to inactivate microorganisms. Furthermore, the high rate (59.6%) of E. coli isolation indicates E. coli can be a good indicator in livestock processing plants even though it has genetic diversity.

• KOREAN POULTRY JOURNAL
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• 제7권8호통권70호
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• pp.96-99
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• 1975

지난 5월말 현재 돈육(부분육) 수출실적은 750만불로 목표액인 900만불의 83$\%$에 이르고 있으며, 수출의 호전으로 생돈가격이 폭등되어 kg당 650원이라는 예년에 볼 수 없었던 가격을 형성하고 있는 실정이다. 이러한 호경기가 장기간 계속되리라고는 아무도 예측할 수 없으므로 수급 조절면에 세심한 주의를 기우려야 할 것이며 종자의 개량, 사양관리의 개선, 새로운 기술도입과 합리적인 경영 등을 실현하여 우리나라 양돈업의 근대화에 박차를 가해야 하겠다. 지난 수년간의 경험을 되살려 무모한 증식이나 불량돈육의 생산으로 국제시장에서의 외면 등의 불행한 사태가 생기지 않도록 서로가 협조하여 80년대를 향한 축산번영을 위하여 총력을 기울여야 겠다.

• Monthly Korean Chicken
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• 제5권3호통권45호
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• pp.2-6
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• 1999

가축수송차량 소득실시 감독 강화 - 위생 ${\cdot}$ 방연관리우수종계장인증요령 개정 고시 - 농림부, 비리신고 인터넷으로 접수 - 경제적인 계사 면적과 사육밀도 - USDA, 육류에 대한 방사선 조사규칙안 발표 - 농림부, 99년 축산발전기금 운용 계획 - 99년 EU 가금산업 전망 불투명 - 방콕, 양계 ${\cdot}$ 양돈 ${\cdot}$ 자재박람회 개최 - 가축방역사업예산 2백41억여원으로 - 미, 러시아에 닭고기 5만톤 추가 원조 발표 - 99년 세계 육류시장 전망 - 일본, 닭고기 대부분 중국에서 수입 - 닭고기 부분육 소비 비율 높아져 - 닭고기 가공품 올해 $47{\%}$ 성장 목표

• KAPE Magazine
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• 통권255호
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• pp.7-9
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• 2017

그동안 쇠고기는 부위에 따라 의무적으로 등급을 표시하여 판매하여 왔으나, 돼지고기는 자율로 등급 표시를 해 왔다. 이러한 현실에 대해 일부 생산자단체와 소비자단체에서는 돼지고기도 쇠고기처럼 소비자가 품질을 눈으로 직접 확인하며 구매할 수 있도록 제도 개선을 요구하였다. 이에 대전충남지원은 돼지고기도 소매단계 품질구분이 필요하다고 판단하여 연구를 하게 되었고 올해 초 그간의 연구결과를 활용하여 충남대학교 동물자원과학부와 함께 돼지고기 인기부위인 삼겹${\cdot}$목심에 대하여 부분육 품질구분(안)을 마련하게 되었다.

• The Korea Swine Journal
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• 제17권10호통권194호
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• pp.56-57
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• 1995

이번 시작된 불황은 일시적인 고통을 없애는 수매비축이나 수입육 방출 중단도 중요하지만 양돈업계의 근본 문제를 해결하는 기회가 되어야 한다. 지금까지 논의를 꺼려왔던 문제들을 적극적으로 토의하고, 왜 생산비가 높은 지에 대한 구체적이고 과학적인 검토와 절감될 수 있는 부분과 절감해야 할 부분을 솔직히 표현하는 것이 필요하다. 90Kg 돼지 1마리를 생산하는데 목표를 12만원으로 정하면 이를 위해서 인건비, 사료비는 얼마가 되어야 하고, 생산성은 어느 수준에 맞추어야 되는 지를 계산해 볼 필요가 있다. 그리고 이를 현실로 실천에 옮기기 위한 계획과 노력이 필요하다.

• Food Science of Animal Resources
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• 제32권2호
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• pp.212-219
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• 2012

The objective of this study was to investigate the effect of high pressure (HP) processing on shelf life, as well as the addition of phosvitin on lipid and protein oxidation stability of minced chicken leg meat. Minced chicken leg meat was mixed with yolk phosvitin at 500 or 1000 mg/kg meat levels, and divided into raw and cooked groups. Then, the samples were subjected to HP at 0.1, 300, and 600 MPa. The total aerobic bacteria, lipid and protein oxidation, along with instrumental meat color ($L^*$, $a^*$, and $b^*$value) of the samples were measured during storage for 7 d at $4^{\circ}C$. In raw meat, the number of total aerobic bacteria was decreased by HP at 300 MPa (4 Log reductions) and 600 MPa (5 Log reductions) after 7 d of storage (p<0.05). HP at 600 MPa increased lipid oxidation of samples at all storage days and protein oxidation of samples during storage at 3 and 7 d. HP induced the changes of meat color by increase of $L^*$ value and decrease of $a^*$ value (p<0.05). The total aerobic bacteria was not detected in the cooked samples, regardless of HP pressure, and the lipid or protein oxidation of the cooked sample treated by 600 MPa was higher than that of the control (0.1 MPa) on day 7 or control on day 3, respectively (p<0.05). The results suggested that HP can improve the shelf life of minced chicken leg meat. However, phosvitin might be a limited antioxidative agent for the improvement of oxidation stability induced by HP.

• Monthly Korean Chicken
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• 제3권8호통권26호
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• pp.2-8
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• 1997

닭 가슴살, 최고의 다이어트식으로 인기 - 세계 곡물 생산량, 안정세 유지 - 독일, `96년 가금육 생산 크게 증가 - 일본, 다리부분 발골작업 자동화 - 중국, 가축 생산물의 수출입 증가 - 미국, 브로일러 시장 호경기 전망 - 제5차 생산책임자회의 개최 - 2004년 닭고기 소비량 41만통, 자급율 $95{\%}$추정

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 한국축산식품학회 1999년도 정기총회 및 제23차 춘계학술발표회
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• pp.207-207
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• 1999