• Proceedings of the Zoological Society Korea Conference
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• 1995.10b
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• pp.304.1-304
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• 1995

No Abstract, See Full Text

• Korean Journal of Veterinary Service
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• v.44 no.4
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• pp.217-225
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• 2021

We investigated the effect of temperature and stock density on the collection efficiency of oral fluid in the pig farm in Korea. Three pig farms with similar breeding environmental conditions were selected and four pens of each farm (total 12 pens) were tested for the collection efficiency of oral fluid from pigs. Collection rate was considered as significant when oral fluid was collected from 70% of pigs within a pen. In the case of growing pigs, when internal temperature of pig barn increased by one designated degree (5℃), the oral fluid collection rate significantly decreased by 24.7% (P<0.05). The collection rate of oral fluid also decreased by 7.1% (P<0.05) as the density rate increase by one designated degree (12.5%). It was estimated that the collection efficiency of oral fluid decreased when the internal temperature of pig barn was 30℃ or higher, or barn density is higher 25% or high. On the other hand, in the case of stall-housing sows, unlike growing pigs, there was no significant differences according to the temperature, so oral fluid collection was considered to be efficient even in hot season.

• Korean Journal of Ichthyology
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• v.5 no.2
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• pp.208-216
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• 1993

The territorial behavior of the naked goby, Gobiosoma bosci, was observed in 80-liter aquaria. Social behavior was observed for an extended time in daily observation periods. Individuals of G. bosci, regardless of size and sex, exhibited agonistic behavior. The aggresive behaviors of approaching, threatening, attacking, and fighting were recorded as agonistic behavior. All individuals are capable of changing their color and camouflaging themselves by matching the color of bottom. Especially, the resident and the intruder are of the same size, the fighting duration was prolonged and the variability of coloration was at its peak.

• The Journal of the Korea Contents Association
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• v.18 no.6
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• pp.545-553
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• 2018

This study analyzes the animal symbolism shown in the novella by Hyoseok Lee and seeks to shed light on the consciousness of the author expressed through such symbolism. Lee used animal symbolism since 1933 which was a literary turning point for him. Animal symbolism in his novels are more than an analogical theme but is used as a core meaning and image. This has a clear intention of the author underneath. Novella which is seen as the starting point of pure literature for Lee, uses the animal pig as a key symbol. The pig serves as a symbol of the capital for poor farmers, while also serving as an amplifier for the desires of the protagonist. The death of the pig that appears at the closing of the novella stands for the tragic reality of the farmers of the time who could not seek growth in their capital or realization of their desires. As such, has characteristics of pure literature but also represents the consciousness of the author who brings attention to the tragic reality of farmers. That is, is a work that realized the unique writing style of Lee and his animal symbolism to bring to life a middle way appraoch to realism and romanticism.

• Korean Journal of Environmental Biology
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• v.34 no.4
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• pp.233-239
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• 2016

The purpose of this study is to investigate the response of the soil mesofauna and ground-dwelling arthropods to vegetation structure and composition in a mountain pasture. The pasture mainly comprised five types of plant communities; Agrostis alba - Phleum pratense community, Poa pratensis community, Festuca ovina community, Rumex acetosella community, and the shrub assemblage comprised Spiraea miyabei-Spiraea salicifolia community. Soil chemical properties including the pH, EC and nutrient levels were influenced by plant communities. Plant-specific responses were observed for bacteria-feeding and plant-feeding soil nematodes. Collembola and Oribatida having the same feeding habit were influenced differently by plants. nMDS showed that the community of ground-dwelling arthropods were separated by vegetation types. Species numbers of arthropods were different among different plant communities. Our results indicate that vegetation structure and composition can influence both abundance of diversity of terrestrial fauna.

• Journal of Environmental Impact Assessment
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• v.25 no.1
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• pp.1-14
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• 2016

With the continuous expansion of highway network and its traffics, neighboring wildlife habitats are splitted into smaller and more isolated patches. The infrastructures contribute to the wildlife-vehicle collision by creating barriers to animal movement. This kinds of traffic accidents are dangerous factors to the drivers' safety and the facilities on the highway as well as to the wildlife themselves. One of the most common ways to prevent habitat fragmentation are fauna crossings and fences. The cost of the mitigation measures to prevent wildlife-vehicle collision could be monetized. However their economic benefits are difficult to be measured. Using contingent valuation method, this study tries to estimate the economic valuation of wildlife collision prevention projects on the Korean highways. The result shows that 43.88% of Korean household had the positive willingness pay to the projects. Moreover, we found that the recognition of the project or the favourable attitude to the environmental issues could raise the willingness-to-pay. Therefore, active public relation on the project could make the friendly public opinion and increase the number of the household which has the positive willingness-to-pay on the project.

• Proceedings of the KSAR Conference
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• 2004.06a
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• pp.290-290
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• 2004

유전자재조합 소 소마토트로핀(recombinant bovine somatotropin, rBST)은 인슐린양성장인자(IGF)-1의 합성과 분비량 조절에 의해 당과 아미노산의 흡수 및 단백질합성의 촉진을 통한 체내흡수 영양소 이용효율 증가, 산유량 증진 및 증체 효과, 세포증식의 촉진작용 등이 있는 것으로 보고(Bauman, 1982; Mears, 1995; 권 등, 1997)된 바 있으며, 또한 최근에 젖소 및 육우빈우의 인공수정시 rBST를 투여하였을 때 1회 수정수태율, 혈중 progesterone 농도 및 IGF-1 농도 등에 영향을 미치는 것으로 보고하였다(Lucy 등, 1994; Bilby 등, 1999; Morales-Roura 등, 2001). (중략)

• Korean Journal of Veterinary Service
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• v.24 no.2
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• pp.161-164
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• 2001

구제역 발생시 구체적인 방역요령은 "구제역 긴급 행동지침"에 따라 방역조치가 수행되며, 이 요령에서 정하지 못하는 사항들은 행정지침으로 전달된 방법에 따라 수행하게 된다. 본 기고는 구제역 방역을 일선에서 시행한 결과를 토대로 재검토한 바, 모든 감수성 동물은 최종도착지가 도축장인 점을 감안할 때 도축장방역이 매우 중요함에도 불구하고 "구제역 긴급 행동지침"이 구체적이지 못하였으며 일선 방역 검사기관의 능력과 여건이 고려되지 않고 방역 및 검사업무는 물론 제반 행정사항을 검사원에게 일임함으로써 결과적으로 업무가중에 의한 검사처리능력의 한계점을 넘는 결과를 초래하였다 따라서 "구제역 긴급 행동지침" 및 자체 가상 시나리오 작성시 도축장 방역을 보완하여 유사시 효율적인 방역 검사가 이루어질 수 있도록 다음과 같이 제언한다. (1) 검사원의 증원방안 (2) 검사업무 보조원 확보 방안(기능직 공무원 대체) (3) 정육 및 부산물 처리장 선정(특히 오수 및 장내용물 처리방안) (4) 사법권의 적절한 활용방안

• Proceedings of the KSAR Conference
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• 2003.06a
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• pp.82-82
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• 2003

The objective of the present study was to investigate the survival effect after transplantation of pig spermatogonia cells into mouse testis. Donor cells were collected from porcine testis and the isolated spermatogonial stem cells were labeled with a fluorescent marker before transplantation and transplanted into testes of busulfan-treated recipient mice. Testes were examined for the presence and localization of labeled donor cells immediately after transplantation or every week for 4 wk. Transplanted germ cells were present in the seminiferous epithelium at 4 weeks after the transplantation, but any differentiating porcine-derived cells were not detected in mouse testis. These results indicate that porcine-derived spermatogonial stem cells can be survived in the recipient, but suggest that porcine-derived male stem cells can not proceed to further differentiating step without helping of immunosuppressor agents.

• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2009.04a
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• pp.151-156
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• 2009

발작은 대뇌겉질의 기능장애 (Cerebral cortical dysfunction)의 결과 나타나며, 다양한 임상증상을 야기하여, 임상가로 하여금 나타나는 증상이 발작인지 혼동 스럽게 한다. 그러므로, "나타나는 증상"이 진성 발작인지를 알아보기 위한 초기의 노력이 필요하다. 이는 대개 동물 보호자에게 다양하고 신중한 질문과 병력청취를 통해서 얻어진다. 일단 "발작"에 대한 진단이 이루어 지면, 동물의 품고에 기초한 감별진단 목록이 형성되어야 한다. 어린 개체 (1년이하)의 경우 감염성 병력에 의한 발작이 많고, 반면 노령성 개체 (5년 이상)의 경우 대사성 기능장애나 두개내의 종양에 의해 발작이 일어난다. 중년령의 개체(1년에서 5년사이)에서는 특발성 발작이 호발한다.