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Efficacy of silver ions against Sacbrood virus infection in the Eastern honey bee Apis cerana
안아진,안규성,서국현,노진형,김영하,유미선,강승원,신성식 대한수의학회 2015 Journal of Veterinary Science Vol.16 No.3
Although silver is known to be a broad-spectrum biocidal agent, the effects of this metal against Sacbrood virus have not yet been investigated. In this study, we evaluated the efficacy of silver ions against natural Korean sacbrood virus (KSBV) infection of Apis (A.) cerana. TenKSBV-infected colonies containing A. cerana with similar strength and activity were selected from an apiary located in Bosung-gun (Korea). Among these, five colonies were randomly assigned to the treatment group that was fed sugar syrup containing 0.2 mg/L silver ions. The othercolonies were assigned to the untreated control group in which bees were given syrup without the silver ions. To assess the efficacy of thesilver ions, colony strength, colony activity, and the number of dead larvae per hive were measured. During the experimental period, the testgroup maintained its strength and activity until day 32 while those of bees in the control group decreased sharply after day 8 to 16. Survivalduration of the test group was significantly longer (40 days) than that of the control group (21 days). These results strongly indicated that silverions are effective against KSBV infection in A. cerana.
양봉농가에서 생산된 프로폴리스 급여에 따른 꿀벌 질병의 저감효과
김지연,최인수,안아진,정하진,장미선,조영관,김용환 한국동물위생학회 2019 한국동물위생학회지 (KOJVS) Vol.42 No.2
The study was conducted to investigate the effect of propolis on the increase of the immunity of honey-bee bees by gradually administering the bees’ propolis to bees. 0.16% and 0.3% 0.6% Propolis were administered at intervals of 2 weeks for 2 months, respectively, and 16 kinds of representative diseases of bees were tested. As a result, less bee disease was observed directly in the 0.3% propolis-ad-ministered group. In the next year, bees and a newborn bee showed a decrease in the incidence of bee disease and American foulbrood in bees administered with propolis. Based on the results of these stud-ies, it was confirmed that propolis administration in bees helps to enhance immunity of bees and is effective in controlling American foulbrood.
광주지역 내 유통 중인 반려동물 사료·간식의 미생물 오염도 및 식품첨가물 사용실태 조사
임대웅,김지연,안아진,박지영,정하진,곽진주,서두리,이재기,장미선,지태경,김용환,Lim, Daewoong,Kim, Ji Yeon,An, Ahjin,Park, Jiyeong,Jeong, Hajin,Gwak, Jinju,Seo, Doori,Lee, Jae Gi,Jang, Miseon,Ji, Taekyeong,Kim, Yonghwan 한국동물위생학회 2022 韓國家畜衛生學會誌 Vol.45 No.3
This study was conducted for safety evaluation on 130 pet food products, which are distributed in Gwangju, South Korea. The microbial contamination part and the usage of food additives part were mainly investigated. The five microorganisms that we tested were total viable cell counts (TVC), Coliforms, Salmonella spp., Campylobacter spp., pathogenic Escherichia coli and there were 15 products that exceed the microbial criteria or detected food poisoning bacteria. Specifically, Coliforms (13 products, 10%), TVC (9 products, 6.9%), Salmonella spp. (2 products, 1.5%), and E. coli (2 products, 1.5%) were followed. On the other hand, food additives such as preservatives, antioxidants and sodium nitrite were detected in 61 products. Among the preservatives, sorbic acid and benzoic acid were detected in 58 (44.6%) products. In antioxidants, Butylated hydroxytoluene (BHT) was detected in 3 (2.3%) products. In addition, preservatives and antioxidants were detected in 8 of 20 products labeled as 'additive-free'. Microbial contamination tended to occur mainly in small-scale individual homemade feed stores, while food additives were all detected in pet shops and supermarkets. Currently, the criteria for microorganisms and food additives for pet foods are insufficient in Korea. So, it is necessary to establish detailed feed standards and specifications for companion animals.
Status of selected feline infectious diseases in Gwangju, Korea
Juyeon Choi,Kyu-Sung Ahn,안아진,SungShik Shin 대한수의학회 2023 大韓獸醫學會誌 Vol.63 No.4
From 2008 to 2017, blood samples from 280 and fecal samples from 149 stray cats in Gwangju, South Korea, were examined for feline immunodeficiency virus (FIV), feline leukemia virus (FeLV), Dirofilaria immitis, and Giardia infections using commercial diagnostic tests. Overall, the combined prevalence of FeLV, FIV, D. immitis, and Giardia was 8.6%, 1.4%, 0.4%, and 2.0%, respectively. FeLV exhibited the highest prevalence rate among the 4 pathogens surveyed, both in the 2008–2009 (9.6%) and 2015–2017 (6.3%) surveys. The results of the feline Giardia study represent the first prevalence report of Giardia infection among stray cats in Korea.
광주지역에서 즉석 제조ㆍ판매하는 식육가공품의 안전성 조사
고바라다 ( Ba-ra-da Koh ),서은주 ( Eun-ju Seo ),안아진 ( Ah-jin Ahn ),정보람 ( Bo-ram Jung ),하이든 ( Yi-deun Ha ),서두리 ( Doo-ri Seo ),임진택 ( Jin-taek Lim ),김용환 ( Yong-hwan Kim ),김은선 ( Eun-sun Kim ) 한국동물위생학회 2017 한국동물위생학회지 (KOJVS) Vol.40 No.1
The main goal of this survey was to assess the current sanitation status and safety standards of meat processed products purchased at instant meat sales and processing operators. Analyses were carried out from April to September in 2016 in Gwangju area, Republic of Korea. A total number of 150 samples including seasoned meats, ground meat products, meat extract products, heated seasoned meats, sausages and hams from 35 butcher shops was collected. The number of inappropriate cases was revealed eleven cases (7.3%) in total viable count of bacteria (TVC), total coliform counts (TCC) and Listeria monocytogenes. The reported data indicate that more systemic and technical guidance is needed to monitor instant meat sales and processing operators in order to guarantee safety of meat processed products.
정하진 ( Hajin Jeong ),김지연 ( Jiyeon Kim ),최인수 ( Insu Choi ),성창민 ( Changmin Seong ),박자윤 ( Jayun Park ),박지영 ( Jiyeong Park ),안아진 ( Ahjin An ),곽진주 ( Jinju Gwak ),장미선 ( Miseon Jang ),서계원 ( Kyewon Seo ),김용환 ( 한국동물위생학회 2020 한국동물위생학회지 (KOJVS) Vol.43 No.1
Hepatitis E Virus (HEV) infection is a worldwide disease and the primary cause of acute viral hepatitis in the world. It can be isolated from many different species including pigs. HEV is a zoonotic pathogen and foodborne disease. The main animal reservoir is domestic pigs. It is usually asymptomatic in pig but it is a public health concern, causing acute hepatitis in humans of varying severity. This study focused on the presence of HEV in pig and pork product. One hundred feces and one hundred fifty serum samples were randomly collected from pigs in slaughterhouses in Gwangju from November in 2018 to February in 2020. In addtion, seventy-five pork products were collected from markets in Gwangju. Feces and pork product samples were examined for the presence of HEV RNA using an reverse-transcription realtime PCR (RT-qPCR) assay. Serum samples were tested for the presence of HEV-specific IgG antibodies using Enzyme-linked immunosorbent assay (ELISA). HEV antigen and antibody positive rates were 3.0% (3/100) and 19.3% (29/150), respectively, in Gwangju and nearby areas such as Jeonnam and Jeonbuk. However, HEV antigen was not detected from any of pork product in this study. In conclusion, the prevalence of HEV should be continuously monitored because HEV was sporadically detected in Gwangju and nearby areas.