• 한국동물위생학회지
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• 제30권3호
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• pp.305-312
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• 2007

The present studies was to seroepidemiological investigation with the related pneumonia due to a combination of both viral and bacterial agents. In selected herd in Jeonbuk-Iksan area of swine farms in 2006. The seroprevalence of antibody titers of PRRS, PCV-2 and mycoplasmal pneumonia were 87.2%, 69.8% and 47.4%, respectively. High seroprevalence of antibody in sow indicate that the infected sow major source of the diseases, and play an important role in circulation between production stage.

• 한국지역사회생활과학회지
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• 제26권1호
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• pp.75-85
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• 2015

This study investigates the impact of livestock diseases, including FMD(foot-and-mouth disease) and MCD(mad-cow disease), on pork demand in Korea. TV news stories about the livestock diseases were considered as negative advertising, and therefore the carry-over effect of negative advertising was combined with the pork demand model in conjunction with an exponential distributed lag function. The asymmetry hypothesis was imposed, however it was accepted that demand response does not show different sensitivities to increases and decreases in the livestock disease news. FMD news had a negative effect on pork demand, whereas MCD news had a positive effect, yet FMD news had a greater effect on pork demand than MCD news. The pork demand elasticity estimates for FMD and MCD news were -0.0071 and 0.0028, respectively. The cross-elasticity of the imported beef price to pork demand was highly inelastic, but it was elastic during the beef import embargo.

• 한국동물위생학회지
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• 제35권2호
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• pp.139-145
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• 2012

Prevalence of major legal communicable diseases in bovine and swine had been monitored in Jeonbuk province from year 2004 to 2008. At least 1 communicable disease had been reported in 687 heads from 68 bovine farms and 17 farms (25.0%) of the 68 positive farms had 1~2 additional outbreaks during the surveillance. By disease, enzootic bovine leukosis, Johne's disease and Akabane disease were occurred in 53 farms (582 heads), 14 farms (100 heads) and 1 farm (5 heads), respectively. Swine communicable diseases were occurred in 4,466 heads from 63 swine farms and 18 farms (28.6%) of the 63 positive farms had 1~2 additional outbreaks during the surveillance. By disease, Aujeszky's disease (AD), porcine epidemic diarrhea (PED), classical swine fever (CSF), porcine reproductive and respiratory syndrome (PRRS), porcine transmissible gastroenteritis (TGE), atrophic rhinitis (AR) and Japanese encephalitis in swine (JE) were occurred in 20 farms (70 heads), 20 farms (2,817 heads), 12 farms (258 heads), 6 farms (1,257 heads), 1 farm (50 heads), 1 farm (2 heads) and 1 farm (10 heads), respectively. In total, 10 communicable diseases (1 species of first-class, 3 species of second-class, and 6 species of third-class) were reported. The first-class diseases were CSF. Johne's disease, and Aujeszky's disease. JE was the second-class and Akabane disease, enzootic bovine leukosis (EBL), PED, PRRS, TGE and AR were third-class diseases.

• 융합신호처리학회논문지
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• 제23권3호
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• pp.129-136
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• 2022

스마트 축사 시스템에서 가장 중요한 부분은 내·외부 대기환경 변화에도 가축이 고품질로 성장할 수 있도록 사육환경을 유지하는 것이다. 특히 여름과 겨울에는 여러 질병이 발생하기 때문에 축사환경에서 온·습도 유지가 매우 중요하다. 이러한 환경을 관리하기 위해 축사용 스마트 시스템이 도입되고 있으나 매우 고가이다. 본 연구에서는 퍼지제어와 HMI를 기반한 저가의 시스템 설계와 제어 방법을 제안한다. 제안된 시스템의 성능을 평가하기 위해 여름철과 겨울철의 대기환경 조건을 주어 시뮬레이션 실험하였으며, 그 결과 가축이 받은 온습도 스트레스를 최소화하는 성능을 보였다. 그리고 실제의 축사에 적용했을 때도 제안된 시스템은 외부대기 환경변화에도 안정적인 제어성능을 보였다. 본 연구에서 제안한 기법이 스마트팜 제어기로 적용된다면, 축사 환경관리에 있어 효과적일 것이다.

• 한국동물위생학회지
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• 제30권1호
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• pp.85-93
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• 2007

The purpose of this study was to investigate the infection situation of several diseases (post-weaning atrophic pigs) such as porcine reproductive and respiratory syndrome (PRRS) in swine breeding complex in Jeonbuk-Iksan. From February to October in 2006, a total of 28 swine samples (6-10 week old) were collected from 6 farms and examined by polymerase chain reaction(PCR) and clinical signs. In the rate of single infection, pneumonia was top (32.1%), followed by salmonellosis (14.2%)and Glasser's disease (10.7%) and double infection pneumonia/Glasser's disease (17.8%) was detected. PCR was detected of PCV 2 from 28 (100.0%) and PPV 6 (21.4%), PRRS PORF6 10 (35.7%) and POR7 11 (39.2%), but HC and AD was not detected. The results suggest that PCV 2 is complex infection PRRS, PPV and bacterial disease.

• 대한수의학회지
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• 제39권4호
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• pp.730-737
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• 1999

A national animal health monitoring system(NAHMS) in Gyeongnam area was started from 1997 to develop statistically valid data for use in estimating disease frequencies in dairy cattle, and the associated costs. The objectives of this study were to : (1) discribe what was done to implement and maintain the system in Gyeongnam ; (2) present selected disease frequencies ; (3) discuss the epidemiological consideration of what was done and implications for the results obtained. Veterinary Medical Officers(VMOs-professors and graduate students from Gyeongsang National University, Faculty of Gyeongnam Livestock Promotion Institute, and Clinic veterinarians) served as data collectors. After training on current disease and management problems of dairy cattle, interview techniques, sampling methods, and data collection instruments, the VMOs participated in selection of the sample herds and data gathering. Forty of 167 dairy herds were selected randomly and the VMOs visited farms once a month for 12 months to collect data about management, disease, inventory, production, preventive treatment, financial and any other relevant data. Strict data quality control devices were used. Specific feed-back was developed for the producers and data collectors. Of the three age groups studied, cows had the greatest number of disease problems. The six disorders found most frequently were (from the highest to the lowest) breeding problems, clinical mastitis, birth problems, gastrointestinal problems. metabolic problems, and lameness. In young stock, respiratory, multiple system, breeding problems, and gastrointestinal problems were pre dominant, whereas in calves, gastrointestinal, respiratory, and integumental problems were major.

• 식물병연구
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• 제27권4호
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• pp.129-136
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• 2021

벼는 전 세계 30억 인구의 식량 공급원으로 아시아 인구의 약 절반이 쌀을 식량자원으로 의존하며 100개 이상의 국가에서 재배되고 있다. 따라서 벼의 병해충에 따른 경제적 손실과 수확량 감소는 식량 수요와 공급을 위협할 수 있다. 벼에 발생하는 병해충을 방제하기 위해 가장 일반적으로 사용되는 방법은 농약을 통한 화학적 방제이다. 그러나 이러한 농약을 통한 환경 오염, 잔류 독성, 내성 병원균 출현, 토양 품질 저하 및 생물 다양성 파괴 등의 문제를 야기할 수 있다. 벼의 병해를 방제하기 위한 최근의 대안으로 미생물을 포함한 환경친화적인 생물학적 방제에 대한 연구가 활발히 진행되고 있다. 미생물 작용제는 식물 병원균과의 경쟁, 항생제 효과 및 기생을 통해 식물 병을 방제 할 수 있다. 벼 근권에서 분리한 미생물들, 예를들어 Bacillus spp., Pseudomonas spp., Trichoderma sp. 등은 벼에 발생하는 다양한 곰팡이 및 세균 병들에 대한 생물 방제제로 사용가능성이 보고되었는데, 특히 벼도열병, 벼 잎집무늬마름병, 벼 흰잎마름병, 벼 깨씨무늬병 및 벼 키다리병을 방제하는 것으로 보고되었다. 이 리뷰에서는 벼에 발생하는 다양한 병에 대한 생물 방제제로서 미생물들이 적용된 연구들에 대하여 논의하였다.

• Animal Bioscience
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• 제34권7호
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• pp.1089-1099
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• 2021

With the development of sequencing technology, numerous, long noncoding RNAs (lncRNAs) have been discovered and annotated. Increasing evidence has shown that lncRNAs play an essential role in regulating many biological and pathological processes, especially in cancer. However, there have been few studies on the roles of lncRNAs in livestock production. In animal products, meat quality and lean percentage are vital economic traits closely related to adipose tissue deposition. However, adipose tissue accumulation is also a pivotal contributor to obesity, diabetes, atherosclerosis, and many other diseases, as demonstrated by human studies. In livestock production, the mechanism by which lncRNAs regulate adipose tissue deposition is still unclear. In addition, the phenomenon that different animal species have different adipose tissue accumulation abilities is not well understood. In this review, we summarize the characteristics of lncRNAs and their four functional archetypes and review the current knowledge about lncRNA functions in adipose tissue deposition in livestock species. This review could provide theoretical significance to explore the functional mechanisms of lncRNAs in adipose tissue accumulation in animals.

• Journal of Animal Science and Technology
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• 제66권2호
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• pp.266-278
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• 2024

Antibiotic resistance (AR) is a complex, multifaceted global health issue that poses a serious threat to livestock, humans, and the surrounding environment. It entails several elements and numerous potential transmission routes and vehicles that contribute to its development and spread, making it a challenging issue to address. AR is regarded as an One Health issue, as it has been found that livestock, human, and environmental components, all three domains are interconnected, opening up channels for transmission of antibiotic resistant bacteria (ARB). AR has turned out to be a critical problem mainly because of the overuse and misuse of antibiotics, with the anticipation of 10 million annual AR-associated deaths by 2050. The fact that infectious diseases induced by ARB are no longer treatable with antibiotics foreshadows an uncertain future in the context of health care. Hence, the One Health approach should be emphasized to reduce the impact of AR on livestock, humans, and the environment, ensuring the longevity of the efficacy of both current and prospective antibiotics.

• 대한수의학회지
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• 제52권4호
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• pp.285-288
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• 2012

Salmonella I 4,[5],12:i:- was a monophasic variant of Salmonella (S.) Typhimurium and notorious for re-emerging candidate which would replace S. Typhimurium DT104 for antibiotic resistance. Recently, isolation rate was increased on human and industrial animals but there was no case in domestic animals but human in Korea. This was first isolation case from domestic animals in Korea. The five isolates from feces of duck (n = 3), chicken (n = 1), and wild bird (n = 1) showed antibiotic resistance against cephems and aminoglycosides. These means that the spread of emerging bacterial pathogens to domestic animals and the need of systemic management for Salmonella I 4,[5],12:i:-.