• Journal of Environmental Impact Assessment
• /
• v.29 no.1
• /
• pp.1-7
• /
• 2020

This study aims to evaluate the effect of artificial facilities constructed afterthe release of the civilian controlled zone (CCZ) in Cheorwon on the inhabitation of cranes. The study site was released from the CCZ in 2012, and several barns have been built since 2017. The average number of Red-crowned Cranes was 9.3±4.3 individuals (±Standard Deviation) in the period before the release of the CCZ from 2009 to 2012, and it decreased by ca. one third of Red-crowned Crane's average individuals were showing 3.5±0.5 individuals after release. The average number of White-naped Cranes also appeared to be decreased by ca. 90% from 63.3±24.6 to 6.0±6.0 individuals. This results suggest that the construction of greenhouses and barns after the releasing of the CCZ affected the decrease of the population of these two crane species. In the case of Red-crowned Crane, the core area tended to move away from the area where barns were built. However, the distribution range of Red-crowned Cranes did not change significantly we expected because the study area was not their favorite place since 2012 when the area was released from the CCZ. The density of the White-naped Crane was relatively high even in the area where greenhouses were built, but after 2017 when the barn was built intensively, core habitat of crane became shrink and fragmented. These results suggest that both Red-crowned Cranes and White-naped Cranes response sensitively against habitat change due to the construction of barns. Since the release of the CCZ, the construction of the greenhouse has been influenced on the distribution of cranes, but subsequently, the construction of the barn seems to have caused a bigger change in their core habitat because the passage of people to barns is more frequent than the greenhouses.

• Journal of Animal Environmental Science
• /
• v.20 no.2
• /
• pp.63-68
• /
• 2014

Environmental heat stress by global warming has a severe effect on the productivity of livestock and, in particular, on that of dairy cattle. Heat stress during high temperature environment directly and indirectly affects milk yield, milk quality and physiological response. This study was conducted to investigate the effects of heat stress on productivity and physiological responses of livestock. Temperature-humidity data logger were established inside the feedlot for measuring real time changes in the feedlot environment. Milk was collected every day for analysing the productivity of dairy cattle. Blood sample and respiration of dairy cattle were collected once in a week for investigating the physiological response factors. Blood component concentration associated with lipolysis metabolism and milk production showed change during tropical night period. Temperature humidity index (THI) of a specific location inside the feedlot showed continuously high levels.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2015.10a
• /
• pp.297-300
• /
• 2015

이 논문에서는 가축관리의 효율성을 높일 수 있는 IoT 기술 기반의 지능형 축산정보 통합관리 시스템 및 구축 방안을 제안한다. 제안한 시스템은 체온, 활동량, 군집도와 같은 개체특성 정보와 온도, 습도, CO2 농도 등의 축사환경 정보를 무선센서 네트워크를 통해 실시간으로 수집한다. 수집된 정보는 가축개체별 생애주기 사양관리 스케쥴과 연동되어 신속한 관리가 필요한 이상상황을 자동으로 인식한다. 또한, 축적된 양질의 축산지식 정보는 허가된 범위 내에서 접종사, 수정사, 수의사, 축산공무원 등 축산종사자에게 공유된다. 제안한 시스템은 대규모 축사에서 수정, 분만, 질병관리 등 사양관리 시기를 자동으로 감지하여 축주에게 알려줄 수 있기 때문에 최소한의 시간과 비용으로 가축관리 효율성과 생산성을 높일 수 있다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2014.04a
• /
• pp.819-822
• /
• 2014

본 연구에서는 비디오 감시 시스템을 기반으로 한우 축사에서 야간 승가 행위 검출을 위한 최적의 방법을 제안한다. 특히 축사 환경에서는 소들간의 겹침 등 다양한 어려움이 발생하기 때문에, 이를 극복하기 위하여 깊이 정보를 이용하여 승가하는 소의 머리를 자동으로 탐지한다. 즉, 소가 네발로 걸어다니는 통상의 경우 소의 등 높이가 1.3m 정도인데 반해 앞발을 들어 승가하는 경우에는 소의 높이가 1.7m 까지 높아짐에 착안하여, 축사 측면에 설치된 깊이 카메라로부터 소까지의 거리 차이를 이용하면 발정기 탐지를 위한 승가 행위를 자동으로 검출할 수 있음을 확인하였다.

• Korean journal of applied entomology
• /
• v.57 no.4
• /
• pp.381-392
• /
• 2018

The distribution of mosquitoes collected in the Cheongju area from 2016-2018 were compared. The collection sites were established at a residential area, migratory bird sanctuary, and cowshed using black light (BL) and BG sentinel traps. Culex pipiens was the most collected species in the residential area, and Aedes vexans was the most collected species in the migratory bird sanctuary and cowshed in all years. The BG trap collected more individuals than did the BL trap in the residential area and migratory bird sanctuary. In total, 22,679 (10 species) mosquitoes were collected in 2016, and 6,502 (8 species) and 6,803 (9 species) mosquitoes were collected in 2017 and 2018, accounting for 3.49- and 3.33-fold decreases, respectively. The relationship between meteorological conditions and mosquito density, according to various variables, was not significant different. The Chaoyang virus was found in Aedes vexans and Culex pipiens collected at the cowshed in 2016 and 2018, respectively. Based on the results of this study, it is considered that continuous surveillance of mosquitoes should be performed for controlling mosquito populations and mediating diseases spread by this vector.

• Proceedings of the Korean Society for Bio-Environment Control Conference
• /
• 2003.04a
• /
• pp.70-73
• /
• 2003

농촌지역의 인구가 급속히 감소하고 있는 가운데, 농촌인력의 노약화, 여성화가 매우 빠르게 진행되고 있다. 인력을 효율적으로 이용하고 농업생산성을 높이기 위하여 현재 온실, 축사 등 농업시설은 자동화, 대형화되어 가고 있는 추세에 있다. 이러한 농업시설의 대형화에 따른 최적환경조성의 중요성이 대두되고 있어서 이에 따른 적합한 시설환경이 요구되고 있으나 적정환기가 이루어지지 않아 생산성 향상에 어려움이 많이 있다. (중략)

• Proceedings of the Korean Society for Bio-Environment Control Conference
• /
• 2003.04a
• /
• pp.157-160
• /
• 2003

일반적인 시설농업의 경우, 광을 주된 에너지원으로 하는 온실을 제외하면, 시설내부의 주요 환경인자인 온도 유지를 위해 단열이 요구된다. 특히 곡물을 저장하는 사일로를 비롯하여 최근 증가 추세를 보이는 시설버섯 재배사, 그리고 양봉사나 축사 등의 단열은 냉방 및 난방에 소요되는 경비와 관련됨으로서 영농의 경영합리화와 직결된다. 따라서 단열의 정도를 나타내는 R-치의 적정범위와 단열처리의 시공성 등은 시설의 초기투자와 유지관리에 영향을 미치게 된다. (중략)

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.12 no.6
• /
• pp.1134-1141
• /
• 2008

As sensor network technologies developed, the sphere field of application is escalated unfortunately, the applicable size is smaller than the actual quantity of cattle in feedlot. In this paper, we simulated and evaluated biological data transmission performance of virtual cattle feedlot. Deducted conclusions show us a more efficient cattle control scenario is required and effective routing protocol design and modification are needed.

• 월간낙농육우
• /
• v.17 no.7 s.183
• /
• pp.102-105
• /
• 1997

한우를 사육하는데 있어 하절기는 생산활동을 저해하는 환경요인을 제공하고 있으므로 기온, 습도, 일사, 바람, 기압, 공기 및 흡혈곤충의 피해를 최소화 할수 있도록 노력 해야한다. 기온이 높으면 사료섭취향이 떨어지고 파리, 모기 진드기등에 의해 건강상태가 부진해지면 특히 임신우의 경우 일사병과 소화장애를 가져올수 있다. 현재 한우를 사육하고 있는 축사의 구조를 보면 계류식우사, 개방식우사, 지붕개폐식 개방식우사, 단방식우사등 여러형태를 볼수 있으며, 여름

• Journal of Korean Society of Environmental Engineers
• /
• v.34 no.8
• /
• pp.557-565
• /
• 2012

In this research, it was analyzed that the effect of the non-point source pollution that occurs in the lower reaches of the livestock area. The analysis on the hydro- and polluto-graphs showed that the concentration of pollution gradually increased as the flow rate increased and, after reaching the peak flow rate, the flow rate dropped drastically. For Event Mean Concentration (EMC), in the lower reaches of livestock area, TSS EMC was 146.80~424.95 mg/L, COD EMC 11.64~55.66 mg/L, BOD EMC 6.66~49.88 mg/L, T-N EMC 7.650~43.825 mg/L and T-P EMC 0.711~3.855 mg/L. According to the results of the analysis on the correlations between pollutants, TSS and BOD, COD, T-N and T-P had correlations at a 0.53~0.95 confidence level. In addition, according to the result of the analysis on the correlations between EMC (mg/L) and storm runoff ($m^3$), the correlation was well explained by a Cubic regression. In addition, among the determination coefficients, TSS and T-N were relatively high, at 0.767~0.835 and 0.773~0.901 respectively, which indicates that EMC goes up as the storm runoff increases. Therefore, it is expected that EMC can be forecasted according to the amount of runoff ($m^3$). The results of this research will be a practical information for the assessment of the non-point source pollution that occurs in the lower reaches of the livestock area.