• Food Science of Animal Resources
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• v.28 no.1
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• pp.91-98
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• 2008

This study was conducted to reveal the effects of pork consumption on the renal and hematochemical indices of workers occupationally exposed to an unclean environment for 6 weeks. Forty-five free-living volunteers were recruited from the workers employed in a car-engine part factory and a leather dyeing company in the Gyeonggi area. Volunteers were to submit a subject consent form prior to the study. They were asked to complete a questionnaire on dietary habits, and blood and urine samples were collected before and after the pork consumption trial. Pork dishes were fed twice weekly (150g per meal) as part of lunch or dinner at the work place. Urine N-Acetyl-${\beta}$-D-glucosamidase (NAG) levels were reduced after the trial, but total-cholesterol, HDL-and LDL-cholesterol levels did not change. However, triglyceride levels did increase significantly (p<0.005). The Zn, Pb, and Cd concentrations in serum tended to decrease, though without statistical significance. In conclusion, the regular consumption of pork may be beneficial for renal functions, however further research in this area is needed.

• Journal of Life Science
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• v.20 no.5
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• pp.697-702
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• 2010

Ten farrow-finish farms participated in this seromonitoring that was conducted to investigate the porcine brucellosis situation in Korea. In total, eight (80.0%) of the 10 farms and 139 (24.0%) of 578 pigs tested showed a positive response in the Rose Bengal test (RBT). Seroprevalence levels were determined using RBT according to age; 35 (14.6%) of 239 piglets, 36 (31.3%) of 115 growing pigs, and 68 (30.4%) of 224 finishing pigs and sows were positive, respectively. All positive samples in RBT were tested with the tube agglutination test (TAT) and competitive ELISA (C-ELISA), simultaneously. Although 48 samples came up positive in the TAT, all samples tested with C-ELISA were negative. Among 26 rectal swab samples from the TAT positive-pigs, Yersinia enterocolitica O:9 was isolated from seven samples (26.9%). Therefore, we speculated that the positive reaction of RBT and TAT in this study might be induced by the serologically cross-reacting bacteria with Brucella abortus.

• Journal of The Korean Society of Grassland and Forage Science
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• v.43 no.4
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• pp.240-247
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• 2023

This experiment investigated the effects of feed additives of Sasa quelpaertensis Nakai (SQN) extract on Landrace pigs on economic traits such as the quality, physiological characteristics, and productivity. Sixteen pigs with an average age of 154 days were selected as experimental subjects. The experiment was conducted by dividing the group into eight pigs for the supplementation group, feeding with SQN extract, and another eight for the control group feeding without SQN extract. Water was fed ad libitum. On the 30th day, there was no significant difference between meat quality and productivity. However, the glucose and thyroxine were statistically lower with the supplementation group than with the control group (p<0.05). Also, the levels of creatinine difference between 1.18 ± 0.12 mg/㎗ with the supplementation group and 0.70 ± 0.06 mg/㎗ with the control group (p<0.05). However, all serum biochemistry values were within a normal range, with no health problems. The present study will help solve the problem of reducing the diversity of plant species in Halla Mountain by increasing the availability of the SQN as a pig feed additive.

• Journal of the korean veterinary medical association
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• v.47 no.9
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• pp.860-863
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• 2011

최근 양돈협회 자료에 의하면 FMD가 발생하였으나 임상증상이 발현된 돼지만을 부분적으로 살처분한 양돈장이 전국적으로 558호에 약 83만두 규모로 알려져 있다. 또한 앞으로도 환절기나 동절기에 FMD가 재발할 가능성이 있다. 그렇다면 부분 살처분을 실시한 농장은 FMD증상이 어떻게 변화하고 음성화는 가능한 것일까? 기존의 부분 살처분 농장은 FMD바이러스가 농장 내 상존하여 지속적이고 반복적으로 피해를 주지 않을까? FMD가 발생하여 부분 살처분 된 농장이 하루빨리 안정화되고 음성화를 이루기 위해 어떤 조치가 필요한 것인가에 대해 합리적인 대책이 요구된다. 다음의 사례는 AI센터에서 FMD가 발생한 후 음성화 되기 까지 과정을 요약 보고한 자료이다. FMD 음성화에 작은 밑거름이 되었으면 한다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.172-173
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• 2001

젤라틴은 일반적으로 콜라겐의 가수 분해로 생성되어지는 단백질로서 대부분 동물의 결합 조직이나 피부, 배에 존재한다. 젤라틴은 젤리, 제빵 및 제과, 유화제 및 chewing gum base 등과 같은 식품용은 물론이고, 의약용, 사진용, 미생물 배양용 등으로도 사용되어 지고 있다. 젤라틴은 대부분 돼지나 소와 같은 육상 동물에서 얻어지고 있으나 최근 들어 광우병과 구제역과 같은 안전상의 문제가 대두되는 시점에서 그들의 대체 원료가 필요로 하게 되었고 이들을 대신하기 위해 어류에서 추출한 젤라틴에 많은 관심을 보이고 있다. (중략)

• Food Science of Animal Resources
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• v.27 no.2
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• pp.216-221
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• 2007

This experiment was carried out to investigate characteristics of pork quality according to various producing district. The results of whole component analysis of pork according to diverse producing district were showed high level of fat content in Jeju island-belly and shoulder loin than other pork samples. And saturated fatty acid contents of Jeju island-belly and shoulder loin of pork were showed 46.6 and 41.6%, respectively, and unsaturated fatty acid contents of Jeju island-belly and shoulder loin of pork were showed 50.3 and 58.4%, respectively. Chungbuk-pork was relatively showed high level of cholesterol content than other pork samples. On the other hand, cholesterol contents of Jeju island-belly and shoulder loin of pork were showed 565.6 and 507.6 ${\mu}g/g$, respectively. Skatole contents of Jeju island-belly and shoulder loin of pork were showed low level(0.013 and 0.065 ${\mu}g/g$) than other pork samples. This results mean that Jeju island-belly and shoulder loin of pork have less order than other pork samples. The chewiness of texture that consumers feel the biggest difference in palatability of meat showed significantly high level(376.5 g) in Jeju island-belly of pork(p<0.05). This result represent that Jeju island-belly of pork have the best sense of the texture than other pork samples. $L^*$(lightness) value of ground pork was generally showed high value in belly than shoulder-loin of pork. However, $a^*$(redness) value of ground pork showed high value in shoulder-loin than belly of pork. And there was no significant difference in $b^*$(yellowness) value among the samples(p>0.05). The results of sensory test(taste, flavor, texture and palatability) from pork according to various producing district showed good flavor and palatability in Jeju island-belly of pork but there was no significant difference among the samples(p>0.05).

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2004.10a
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• pp.231-234
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• 2004

본 연구는 도축전 계류중인 돼지에게 탄산수를 급여함으로써 기대되는 스트레스 해소 극대화를 통한 육질개선효과를 조사하기 위해 실시되었다. 도축후 $30\;{\sim}\;1hr$ 에 걸쳐 조사된 $pH_{30-1}$ Value에서는 일반음용수 및 탄산수 음용구 모두 동일한 수치를 나타내었으나 24hr 경과한 $pH_u$에서는 탄산수 음용돈에서 다소 높게 나타나 완만한 pH감소 효과를 나타나주었다(p<0.05). 측정된 근육의 온도에서는 탄산수 음용구가 일반음용구보다 뚜렷이 낮게 나타나 유의성 있는 냉각 효과를 나타내었다(p<0.05). 보수력(WHC) 측정 결과에서는 탄산수 음용구가 다소 우수하게 나타났으나 유의성 있는 뚜렷한 차이는 보여주지 않았다 가열감량(Cooking loss)에서도 보수력과 같이 대조구 및 처리구의 유사한 경향을 보여주었으나 유의성 있는 차이는 보이지 않았다.

• Journal of the Korean Society of Food Science and Nutrition
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• v.46 no.8
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• pp.903-909
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• 2017

This study was conducted to develop Helianthus tuberosus (HT) juice mixed with dried bitter melon juice and assess its hypoglycemic effect in streptozotocin (STZ)-induced diabetic rats. HT juice mixed with 5.0% dried bitter melon juice was used in this study. Male Sprague-Dawley rats were divided into four groups (eight rats per group) and drunk each sample for 4 weeks: normal water [normal control (NC) group], STZ+normal water (STZ group), STZ+HT juice (HT group), STZ+HT juice mixed with 2.5% bitter melon juice (HT2.5 group), and STZ+HT juice mixed with 5.0% bitter melon juice (HT5.0 group). HT juice was diluted to 25% in distilled water and supplied to rats. Food intake, body weight gain, and food efficiency ratio were lower in the STZ group than in the NC group. HT, HT2.5, and HT5.0 groups showed higher parameters than the STZ groups. Water intakes were higher in the STZ group than in the NC group. After 3 weeks, HT, HT2.5, and HT5.0 groups showed lower parameters than the STZ group. After 1 week, blood glucose level of the STZ group ($476.7{\pm}22.8mg/dL$) was significantly higher than those of the HT group ($376.3{\pm}25.8mg/dL$), HT2.5 group ($405.2{\pm}35.1mg/dL$), and HT5.0 group ($342.8{\pm}29.7mg/dL$). After 4 weeks, blood glucose level of the STZ group were significantly higher than those of the HT, HT2.5, and HT5.0 group. Serum insulin levels of the HT group ($3.13{\pm}0.32ng/mL$), HT2.5 group ($3.40{\pm}0.23ng/mL$), and HT5.0 group ($3.48{\pm}0.43ng/mL$) were higher than that of the STZ group ($2.72{\pm}0.53ng/mL$). These results indicate that H. tuberosus juice mixed with dried bitter melon juice helps prevent or attenuate progression of diabetes in rats with STZ-induced diabetes.

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2005.05a
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• pp.253-255
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• 2005

국내 도입 운영되고 있는 돼지 도체 냉각방법과 냉각실의 온도에 따른 PSE 발생율을 비교하여 최적의 냉각조건을 설정하고자 수행한 결과, 도체 냉각방법에 따른 PSE 발생율은 사후 초기 90분간 도체 냉각시 냉수 냉각과 급속냉각방법이 일반적으로 사용하고 있는 완만냉각 방법에 비하여 약 22%정도 PSE 발생율이 낮은 것으로 분석되었다(p<.0001). 사후 초기 90분간 냉각실 온도에 따른 PSE 발생율을 비교한 결과 냉각실 실제온도를 $-5{\sim}7^{\circ}C$로 운영한 경우가 이보다 높거나, 낮게 운영하는 것 보다 $4{\sim}14%$의 낮은 PSE발생율을 보였다(p<0.0001).도체등급판정 후 $3{\sim}5$시간에는 냉각실 온도는 유의적인 차이를 보이지 않았다. 이상의 결과에서 사후 초기 90분간의 온도관리의 중요성을 알 수 있었으며, PSE 발생율과 냉각단축을 줄이기 위해서는 초기 90분간 냉각실온도를 $-5{\sim}7^{\circ}C$로 운영하는 것이 바람직하다고 판단된다.

• Journal of Animal Science and Technology
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• v.46 no.1
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• pp.1-6
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• 2004

This study was conducted to investigate novel genetic variations of MCIR^*3 allele. In general, white spotting or white belt on a black backgroud in pigs is determined by the E$^p$ allele at the MCIR/Extention locus. E$^p$ shares a frameshift mutation with the E$^{D2}$ allele for dominant black color. An oligonucleotide primer set was designed to amplify complete coding sequence of the porcine MCIR gene. The MCIR coding sequences obtained from five breeds those were Landrace(white). Yorkshire(white), Hampshire(belt), Berkshire(spot) and Jeju native black pigs(black), were used for this study. A multiple sequence alignment of the MCIR coding region using Clustal W was performed. The total length of the MCIR coding sequence ranged from 963 to 966 base pairs(bp) among the selected breeds. The sequence analysis of the complete coding region of MCIR was revealed that Hampshire and Jeju native black pig have 3 cytosines deletion and Birkshire has 2 cytosines deletion at codon 23(nt68) in Extention loci. Besides the finding, there were three different missense mutations and a frameshift mutation in the MCIR coding region.