• Asian-Australasian Journal of Animal Sciences
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• 제32권9호
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• pp.1475-1481
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• 2019

Objective: The objective of the present study was to investigate pork quality from Hereford${\times}$Berkshire female and intact male pigs reared outdoors in an alternative production system. Methods: Berkshire purebred sows were artificially inseminated, once in the fall and again in the spring of the following year, with semen from Hereford boars and managed free of antibiotics in an outdoor hoop structure until the last month of pregnancy, after which they were moved to a pasture-based unit of 0.8 hectares with individual lots with a farrowing hut, shade, and water ad libitum. Piglets were weaned at 4 weeks of age and housed in a deep-bedded hoop structure, grouped by sex. Animals were harvested at market weight of 125 kg, approximately 200 days of age. Hot carcass weight was collected at the time of the harvest. After 24 hours of refrigeration, carcass characteristics were measured. Longissimus dorsi samples collected from the right side loin. Loins were cut into 2.54-cm thick chops and were used to measure marbling score, color score, drip loss, and ultimate pH. Sensory panel tests were conducted as well at North Carolina State University. For pork characteristics and sensory panel data, trial and sex were included in the statistical model as fixed effects. Hot carcass weight was included in the model as a covariate for backfat thickness. Results: Neither the subjective nor the objective color scores displayed any differences between the boars and the gilts. No difference was found for pH and marbling score between trials or sexes. Gilts had a thicker backfat measurement at the last lumbar and a narrower longissimus muscle area measurement when compared to the boars. The only difference in the sensory characteristics was found between the trials for texture and moisture scores. Conclusion: Consumers were not able to detect boar taint under the condition of this study, which is that the intact males were reared outdoors. Additional trials would be necessary; however, based on the results of the present study, outdoor rearing can be suggested as a solution to the issue of boar taint.

• Asian-Australasian Journal of Animal Sciences
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• 제19권11호
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• pp.1643-1648
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• 2006

To investigate the effects of feeding restricted on growth, carcass characteristics and plasma profiles in an attempt for optimum responses, a total of 108 cross-bred finishing barrows [(Landrace${\times}$Yorkshire)${\times}$Duroc]weighing an average of $46.88{\pm}0.52kg$ were assigned in a randomized complete block (RCB) design to one of four treatments with three replicates and nine pigs per pen. Feeding regimens were, 1) ad libitum from 50 kg to market weight (Ad 3/3), 2) restricted feeding from 90 kg to market weight (Ad 2/3), 3) restricted feeding from 70 kg to market weight (Ad 1/3), and 4) restricted feeding from 50 kg to market weight (Ad 0/3). During the experimental period, average daily feed intake (ADFI) was decreased from 2.53 kg (AD 3/3) to 2.09 kg (AD 0/3) with increasing restricted feeding duration of (p<0.05). Average daily gain (ADG) of AD 3/3 (0.79 kg) was significantly higher (p<0.05) than those of AD 1/3 (0.74 kg) or AD 0/3 (0.72 kg). Feed efficiency was not influenced by restriction regimens. Blood IGF-I concentrations were increased from 74.14 to 134.25 (167.36-115.66) ng/ml as body weight increased. Blood leptin concentrations were affected by feed intake level and coincided with blood IGF-I concentrations. Most of carcass characteristics were not significantly affected by restricted feeding, however cooking losses in AD 1/3 and Ad 0/3 treatment diet were higher than those in Ad 3/3 and Ad 2/3. In addition, there was a trend that backfat thickness was lowered in proportional to decreasing feed intake (p>0.05). In conclusion, restricted feeding improved feed efficiency after 50 kg body weight without deteriorating the pork quality of barrows.

• 농업과학연구
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• 제33권2호
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• pp.97-106
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• 2006

To strengthen the competitiveness of agricultural sector of the Korea, the direction of market trends on agriculture of the Malaysia was reviewed. The most dominating agricultural area in value is palm oil products, and forest products, sea products poultry products and rubber products is in order. The cultivated area of highest two top plants, oil palm and rubber, was about 4.4 million hectares in 2005, but it is decreasing year by year. Comparatively, rice field, pine apple and fruits tree cultivating area is increasing in tendency by the year. Among all the agricultural products, those items such as pork meat, poultry, egg were self-sufficient, rice, fruits, vegetables and sea products were about 70 to 80% self-sufficient, and beef meat, goat meat and milk were below 20% self-sufficient. Most of the grains, such as wheat, rice, barley, corn etc. and their processed food were imported. Also, temperate fruits such as apple, pear, and water cultivated as well as sprouting vegetables are imported. Ornamental products as cutting flowers and orchids are exported to mainly to the Singapore, but high quality temperate fruits and vegetables are imported from Australia. Oil palm exportation covers the balance of the other items imported and obtaining the foreign money as well in Malaysia.

• Journal of Animal Science and Technology
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• 제47권1호
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• pp.91-98
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• 2005

Results of meat quality, physicochemical characteristics, fatty acid and amino acid composition of the Korean Native Black Pig(70 and 90 kg of slaughter weight; KNBP) versus Landrace(110kg of slaughter) are as below. Compared with Landrace, the KNBP exhibited a greater lean meat yield, with no difference in backfat thickness between Landrace and KNBP. There were no difference in chemical composition between Landrace and KNBP, but pH, and cooking loss in the KNBP were superior value than those of the Landrace. These results, KNBP were affected in sensory property and cooking yield. Amino acid content of KNBP and Landrace were significant differences between Landrace and KNBP. Except for the methionine, essential amino acid contents of KNBP had significantly higher than those of Landrace. In the change of fatty acid composition, the Landrace had significantly higher percentages of palmitic(l6: 0), stearic(18: 0) and linolenic(18: 3) acids than that of KNBP, but linoleic acid(l8: 2) was decreased.

• 아태비즈니스연구
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• 제15권1호
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• pp.273-287
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• 2024

Purpose - This study conducts the co-occurrence analysis, one of the social network analysis using global OTA's online reviews and grades in order to understand the experience structure of foreign tourists visiting cutural tourism resources in Jeju, Korea. Design/methodology/approach - For this purpose, this study selects 6 cultural tourism resources in Jeju as the study sites, and collects qualitative review data (noun, adjectives, and verb) and quantitative grade data. Findings - The co-occurrence network analysis between words and grade of market and street shows that the grade of 5 appears the most simultaneous with pork, buy, lot, try, fresh, black, food, price, seafood, local, market, good, street, etc. and the grade of 1 connects with small, dish, better, taste, etc. And the co-occurrence network analysis between words and grade of tradition and folklore shows that the grade of 5 appears the most simultaneous with village, place, museum, visit, time, life, culture, women, diver, use, lot, etc. and the grade of 1 connects with minute, spend, room, recommend, honey, etc. Research implications or originality - The above research results are relevant in order to find out the core experience of foreign tourists using online review and grade generated by foreign tourists and use as the important information to develop the strategies related to the planning and management of cultural tourism resources.

• 대한가정학회지
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• 제18권1호
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• pp.35-40
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• 1980

This study was designed to find out the mineral content in Korean foods. The data will be used as a fundamental guide in planning sodium and potassium restricted diet in Korea. The study is part 6 sodium and potassium content in meat, eggs and fish. The previous study is s follows: part1 and part 5 on vegetables and fruit, part 2 on cereals, part 3, on milk and soft drinks and part 4 on orange juice and nectars. part 6 includes 10 beef cuts, 5 retail items of pork, 4 parts of chicken, 2 kinds of eggs and 15 individual kinds of fish were collected from the market and analyzed for the content of sodium and potassium by atomic absorption spectrophotometry. The following tables 1-5 show the result.

• 한국식품과학회지
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• 제22권2호
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• pp.145-149
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• 1990

DOA의 추출 및 분석조건과 랩 필름으로 포장된 식품의 저장 및 전자렌지로 가열 중 식품으로의 DOA의 이행량을 조사하였다. 추출용매와 방법에 대하여 실험한 결과 DOA는 carbon tetrachloride를 이용하여 약 1시간 이상 reflux시킬 때 가장 우수한 추출률을 나타냈다. 국내 시장에 유통 중인 PVC 랩은 가정용과 영업용의 경우 각각 평균적으로 약 18.9% 및 24.6%의 DOA 함량을 나타냈다. 저장시 DOA의 이행량은 돼지고기 삼겹살의 경우 저장 1일 및 3일째 각각 21% 및 26%로 조사된 식품 중 가장 높은 이행량을 나타냈다. 전자렌로 가열시에 조사된 모든 식품의 경우 랩과 직접 접촉이 안된 상태에서의 DOA 이행량은 약 5.5% 범위내로 미미하였으나 돼지고기 삼겹살의 경우 직접 접촉된 상태로 가열하였을 때는 약 49%의 DOA가 이행되었다.

• Asian-Australasian Journal of Animal Sciences
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• 제30권9호
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• pp.1207-1214
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• 2017

Since the industrialization of swine production in the late 1900s, swine farms in the United States, as well as in Europe, have largely become consolidated. Pig farms became larger in size but fewer in number, with 91% of market pigs being produced by large operations with 5,000 or more pigs on-site in the US, and only 3% of the total utilized agricultural land representing organic farming. Such change in the market made it difficult for small farmers to stay competitive, forcing them to find alternative ways to reduce the cost of production and increase profit using the outdoor production system. In contrast to the indoor confinement system, outdoor production system uses pasture-based units and/or deep-bedded hoop structures that promote animal welfare and environmental sustainability with a lower capital investment. In accord with the growing concern for animal and environmental welfare and food safety by the consumers, small farmers practicing an outdoor production system are seeing increased opportunities for marketing their products in the pork niche market. Unlike the general belief that the reproductive and growth performance measures of the outdoor sows and piglets are poorer in comparison with the animals reared indoors, studies showed that there was no significant difference in the performance measures, and some traits were even better in outdoor animals. Improved reproductive and production traits can increase the sustainability of outdoor farming. Present study reviewed the recent studies comparing the performance measures, meat quality and health of indoor and outdoor animals, as well as the efforts to improve the outdoor production system through changes in management such as hut types and breed of animals.

• 한국축산식품학회지
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• 제29권2호
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• pp.238-244
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• 2009

시판 돈육 소시지에 가압가열 처리를 하고 펩신 및 트립신을 처리한 후 ci-ELISA, SDS-PAGE 및 immunoblotting을 실시하여 시판 돈육 소시지의 항원성 변화를 살펴본 결과는 다음과 같다. A와 B 제품 소시지는 가압가열 처리에 의해 항체와의 결합력이 각각 30%, 23% 이하로 크게 감소하였다. SDS-PAGE 결과에서도 두 제품 모두 5분간 가압가열 처리에 의해 PSA band가 약화되었으며 10분 및 30분 처리 시에는 PSA band가 저분자 펩타이드로 많이 분해되었다. Immunoblotting 결과에서는 두 제품 모두 무처리구의 PSA band가 항체와 반응하였지만 가압가열 처리 후에는 항체와 반응하지 않았다. 가압가열 처리에 의한 돈육 소시지의 항원성 저감화를 확인한 후 소화효소가 감소된 시판 소시지의 항원성에 미치는 영향을 살펴보았다. Ci-ELISA를 실시하여 PSA와 p-IgG와의 결합력을 살펴본 결과 A 제품의 경우 5, 10 및 30분 가압가열 처리구가 펩신 및 트립신 처리에 의해 결합력이 약 20% 이하로 크게 감소하였으며 특히 가압가열 30분 처리구는 약 10% 이하의 가장 낮은 결합력을 나타내었다. B제품은 가압가열 30분 처리구의 경우 소화효소 처리 후에도 감소하는 경향을 보였으며 트립신 120분 처리에 의해 약 10% 이하로 결합력이 감소하였다. SDS-PAGE 결과에서는 A 제품의 경우 모든 가압가열 처리구의 PSA band가 펩신 처리 시 저분자 펩타이드로 많이 분해되었으며 10 및 30분 가압가열 처리구의 경우 PSA band가 트립신 처리에 의해 거의 소실되었다. B 제품의 가압가열 처리구는 효소처리에 의해 PSA band가 더욱 약화되었으며 특히 가압가열 30분 처리구의 PSA band는 트립신 처리 후 거의 소실되었다. Immunoblotting결과에서는 A제품의 경우 무처리구의 PSA band가 펩신 30분 처리까지 항체와 다소 강하게 반응하였지만 가압가열과 효소처리 후에는 항체와 반응하지 않았으며 B 제품은 효소처리에 의해 모든 실험구가 항체와 반응하지 않았다. 이상의 결과를 종합해 볼 때 돈육 시판 소시지는 가압가열 처리에 의해 항원성이 크게 감소하였으며 소화효소 처리 후에도 항원성이 증가하지 않고 오히려 감소하는 경향을 나타내었다. 따라서 가압가열 처리한 돈육 소시지는 섭취 후 소화, 흡수 시에도 항원성이 감소하므로 가압가열 처리가 돼지고기 알레르기 저감화에 효과적인 방법임을 확인하였다.

• Journal of Animal Science and Technology
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• 제53권4호
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• pp.377-385
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• 2011

본 연구는 시중에 유통 중인 국내산 건조-숙성햄 중 숙성기간이 24개월된 다리육(T1)과 4개월 된 목살(T2)의 성분 특성 및 이화학적 특성, 지방산, 유리 아미노산 및 관능적 특성을 비교 조사하기 위해 실시하였다. 수분 함량은 T1 (45.24%)이 T2 (32.50%) 보다 유의적으로 높았으나(p<0.05), 지방 함량은 T2 (26.42%)가 T1(16.46%) 보다 유의적으로 높게 나타났다(p<0.05). 콜레스테롤 함량은 T1이 69.47 mg/100g, T2가 54.80 mg/100g으로 T1이 T2 보다 높게 나타났다(p<0.05). 하지만, 처리구간 염농도, 염용성 단백질, 보수력 및 pH의 유의적인 차이는 나타나지 않았다. 전단력은 T1이 T2 보다 낮았으며(p<0.05), 지방산패도인 TBARS는 T2가 3.25 mgMA/kg로 T1의 0.39 mgMA/kg 보다 유의적으로 높게 나타났고(p<0.05), VBN은 T1이 134.65 mg/100 g로 T2의 47.25 mg/100 g 보다 유의적으로 높게 나타났다(p<0.05). 미생물의 경우, 모든 시험구에서 대장균 군 및 대장균은 검출되지 않았으며, T1 및 T2의 유산균수은 각각 4.31, 3.57 log CFU/g로 T1이 T2 보다 높게 나타났다(p<0.05). 적색도는 T2가 T1 보다 유의적으로 높게 나타났고(p<0.05), 황색도는 6.41~7.24 수준으로 시험구간의 유의적인 차이가 나타나지 않았다. 지방산의 경우, Palmitoleic acid 및 stearic acid의 함량이 T2가 T1 보다 유의적으로 높게 나타났으며(p<0.05), oleic acid, linoleic acid 및 단가 불포화지방산은 T1이 T2 보다 유의적으로 높게 나타났다(p<0.05). 유리아미노산의 경우, T1이 T2 보다 유리아미노산의 총량이 유의적으로 높게 나타났으며(p<0.05), T1이 T2 보다 asparagine, leucine 및 phenylalanine의 함량이 높게 나타났다(p<0.05). 이상의 결과 숙성 기간이 상대적으로 많은 T1의 연도, 단백질 변성도, 유산균수 및 유리아미노산 총량이 T2 보다 높게 나타났으나, 지방산화도는 낮게 나타나 장기간의 숙성 제품이 오히려 단기간 숙성 제품보다 낮았다.