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한국동물위생학회(구 한국가축위생학회)> 한국가축위생학회지 (KOJVS)> Identification of Korean native cattle persistently infected with BVDV using Ear-notch method

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Identification of Korean native cattle persistently infected with BVDV using Ear-notch method

Youngsik Kim , Yongkwan Kim , Sook-young Lee , Kyoung-ki Lee , Kyung-hyun Lee , Jae-chan Song , Jae-ku Oem
  • : 한국동물위생학회(구 한국가축위생학회)
  • : 한국가축위생학회지 (KOJVS) 42권2호
  • : 연속간행물
  • : 2019년 06월
  • : 117-120(4pages)

DOI


목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
ACKNOWLEDGEMENTS
ETHICAL STANDARDS
CONFLICT OF INTEREST
REFERENCES

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Bovine viral diarrhea Virus (BVDV) infections cause respiratory, gastrointestinal, and reproductive problems, such as infertility, abortion, stillbirth, and sickly offspring. Many countries have reduced the economic damage through the application of different control programmes, and some have successfully eradicated BVD. Detection and elimination of cattle persistently infected (PI) with BVDV is important for BVD eradication because PI cattle are a main source of BVD transmission. In this study, the prevalence of Korean native cattle persistently infected (PI) with BVDV was investigated and determined in 49 farms with 3,050 cattle. The all samples were collected by ear notch sampling. Korean native cattle with initial positives on antigen-ELISA (Ag-ELISA) were sampled again after 3∼4 weeks and cattle with second positives in both Ag-ELISA and immunohistochemistry (IHC) were identified as PI cattle. Among the 49 farms, 14 (28.6%) farms had at least more than one PI cow and 21 (0.69%) of 3,050 cattle were determined as PI cattle. As a result of this work, it is suggested that national BVD eradication program is required to reduce economic losses by BVDV infection in Korean cattle industries.

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  • : 농학분야  > 축산
  • : KCI등재
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  • : 계간
  • : 1225-6552
  • : 2287-7630
  • : 학술지
  • : 연속간행물
  • : 1990-2019
  • : 1080


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1벌나무(Acer tegmentosum Maxim) 추출물의 항산화 활성 및 고지방식이를 급이한 흰쥐의 지방간 개선 효과

저자 : 이수정 ( Soo-jung Lee ) , 조항희 ( Hang Hee Cho ) , 송윤오 ( Yuno Song ) , 장선희 ( Sun-hee Jang ) , 조재현 ( Jae-hyeon Cho )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 43-51 (9 pages)

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The effects on the radical scavenging activities and hepatic lipid levels in rats fed a high-fat diet (HFD) in the 70% ethanolic extract from Acer tegmentosum Maxim (ATM) were evaluated. Total phenol content of ATM was 168.60 mg catechin/g in the 70% ethanolic extract of Acer tegmentosum. The DPPH and ABTS radical scavenging activities were 18.32 mM TE/g and 32.25 mM TE/g, respectively. Food efficiency ratio was lower significantly in supplemented group with 150 mg/kg BW/day during 5 weeks (HFD+ATM) compared to HFD. Total cholesterol and triglyceride contents in liver tissue of HFD+ATM were lower significantly compared to those of the HFD. Supplementation of ATM significantly decreased lipid peroxide contents and increased radical scavenging activity in the liver tissue compared with that of HFD group. Moreover, the hepatocytes of HFD rats showed a typical fatty liver morphology showing the presence of cytoplasmic lipid droplets, whereas administration of ATM attenuated the number and the size of lipid droplets. In the liver tissue of ATM administrated HFD group, the mRNA levels of SREBP-1c, PPARγ, and FAS were decreased. Therefore, these results suggest that Acer tegmentosum extracts could have antioxidant activities and the hypolipidemic effects in liver tissue by its phenolic compounds.

2인천지역 반려견 유래 세균의 항생제 내성 모니터링 조사

저자 : 김경미 ( Kyung-mi Kim ) , 조민행 ( Min-haneng Cho ) , 이승환 ( Seung-hwan Lee ) , 김경호 ( Kyung-ho Kim ) , 이정구 ( Jung-gu Lee ) , 이성모 ( Sung-mo Lee )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 53-60 (8 pages)

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This study was performed to investigate antimicrobial resistance in bacterial isolates obtained from companion dogs in veterinary hospitals and an animal shelter in Incheon. Drug resistance was examined respectively with the isolates of Escherichia coli, Enterococcus faecalis, and Staphylococcus pseudintermedius. The prevalence of drug resistance was calculated for each bacterial species towards 163 E. coli isolates, 156 E. faecalis isolates, and 86 S. pseudintermedius isolates by using selected antimicrobials. E. coli isolates were highly resistant to ampicillin, ciprofloxacin and tetracycline (47.9%, 28.2% and 28.2%, respectively). E. faecalis isolates were highly resistant to quinupristin-dalfopristin, tetracycline, kanamycin, rifampicin (69.8%, 66.0%, 53.8% and 51.9%, respectively). Higher levels of resistance were detected for ampicillin, penicillin, tetracycline, erythromycin, trimethoprim/sulfamethoxazole, telithromycin in S. pseudintermedius isolates (83.7%∼52.6%, respectively). Occurrence of methicillin- resistant S. pseudintermedius (MRSP) was confirmed by oxacillin disc diffusion method, resulted in 23.3% occurrence among the S. pseudintermedius isolates (20/86 strains). The occurrence ratio of multidrug-resistance in the isolates of E. coli, E. faecalis, and S. pseudintermedius was 34.5%, 56.9%, and 67.9%, respectively. In this study, higher levels of antimicrobial drug resistance were observed in bacterial isolates obtained from dogs in Incheon. A regular monitoring and surveillance program should be implemented to prevent the emergence and spread of the drug-resistant bacteria carried in companion dogs.

3대구지역 집합유와 소에서 큐열 항체 보유율 조사

저자 : 임현숙 ( Hyun-sook Lim ) , 양창렬 ( Chang-ryoul Yang ) , 김환득 ( Hwan-deuk Kim ) , 김경희 ( Kyung-hee Kim ) , 도주양 ( Joo-yang Do ) , 조재근 ( Jae-keun Cho )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 61-65 (5 pages)

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Seroprevalence of Coxiella burnetii (Q fever) in bulk-tank milk and cattle in Daegu area was analyzed from 2017 to 2018 by ELISA. The prevalence of antibodies in collected bulk-tank milk from 12 dairy cattle farms was 41.7% (10/24) and the seroprevalence of 249 cows reared in the area of Daegu was 3.2% (8/249) By age, the seroprevalence was 1.9% (2/105) in less than 2 years of age, 4.2% (5/119) between 3 and 5 years of age and 4.0% (1/25) in more than 6 years of age. By breed, the seroprevalence of the Hanwoo cattle was 1.2% (2/162) and the seroprevalence of the dairy cattle was 6.9% (6/87). The result suggested that seroprevalence of C. burnetii was relatively high in both bulk-tank milk samples and dairy cattle than the Hanwoo cattle. Based on these data, it is necessary to keep monitoring the prevalence of Q fever in Daegu area.

4국내 고능력우 Holsteins 농가의 TMR 영양성분 및 대사성 질병 분석

저자 : 김선호 ( Seonho Kim ) , 조용일 ( Yong-il Cho )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 67-71 (5 pages)

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A variety of livestock feed resources were used in Korean dairy farm due to a lack of the endemic feed. However, there is inadequate real farm data to support farmers' decisions on the choice of options. The main objective of this study was to evaluate the nutritional value of total mixed ration (TMR) as well as the metabolic diseases status in Korean dairy farms. TMR samples were collected from nine feed companies and eight selected self-formulated by the dairy farms. The nutrient contents were examined by AOAC methods. The frequency of metabolic diseases such as ketosis and hypocalcemia were surveyed. The average moisture content was 36.2% although the min. and max. value were varied from 21.7% and 50.6% among farms. The mean±standard deviation of crude fiber (CF), crude ash (CA), ether extract (EE), and crude protein (CP) were 21.4±2.5, 4.6±0.4, 3.2±0.5 and 9.8±1.7, respectively. However, the average ADF and NDF was 17.3±3.7 and 31.0±5.7, respectively. The compositions of TMR were varied significantly among the dairy farms. The frequency of clinical Ketosis (CK), subclinical ketosis (SCK) and hypocalcemia were higher in early lactation period with 4.5%, 11.0% and 3.0%, respectively. Also, the frequency of SCK was higher than CK and hypocalcemia throughout the lactation. Periodic TMR nutrient analysis based on herd production or physiology change would maximize the effects of TMR feeding. Furthermore, the study results would be useful to the farm practitioner and producer for their farm management.

5Computational approaches for prediction of protein-protein interaction between Foot-and-mouth disease virus and Sus scrofa based on RNA-Seq

저자 : Tamina Park , Myung-gyun Kang , Jinju Nah , Soyoon Ryoo , Sunghwan Wee , Seung-hwa Baek , Bokkyung Ku , Yeonsu Oh , Ho-seong Cho , Daeui Park

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 73-83 (11 pages)

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Foot-and-Mouth Disease (FMD) is a highly contagious trans-boundary viral disease caused by FMD virus, which causes huge economic losses. FMDV infects cloven hoofed (two-toed) mammals such as cattle, sheep, goats, pigs and various wildlife species. To control the FMDV, it is necessary to understand the life cycle and the pathogenesis of FMDV in host. Especially, the protein-protein interaction between FMDV and host will help to understand the survival cycle of viruses in host cell and establish new therapeutic strategies. However, the computational approach for protein-protein interaction between FMDV and pig hosts have not been applied to studies of the onset mechanism of FMDV. In the present work, we have performed the prediction of the pig's proteins which interact with FMDV based on RNA-Seq data, protein sequence, and structure information. After identifying the virus-host interaction, we looked for meaningful pathways and anticipated changes in the host caused by infection with FMDV. A total of 78 proteins of pig were predicted as interacting with FMDV. The 156 interactions include 94 interactions predicted by sequence-based method and the 62 interactions predicted by structure- based method using domain information. The protein interaction network contained integrin as well as STYK1, VTCN1, IDO1, CDH3, SLA-DQB1, FER, and FGFR2 which were related to the up-regulation of inflammation and the down-regulation of cell adhesion and host defense systems such as macrophage and leukocytes. These results provide clues to the knowledge and mechanism of how FMDV affects the host cell.

6양봉농가에서 생산된 프로폴리스 급여에 따른 꿀벌 질병의 저감효과

저자 : 김지연 ( Ji Yeon Kim ) , 최인수 ( In Su Choi ) , 안아진 ( Ah Jin Ann ) , 정하진 ( Ha Jin Jeong ) , 장미선 ( Mi Sun Jang ) , 조영관 ( Young Kwan Cho ) , 김용환 ( Yong Hwan Kim )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 85-92 (8 pages)

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The study was conducted to investigate the effect of propolis on the increase of the immunity of honeybee 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-administered 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 studies, it was confirmed that propolis administration in bees helps to enhance immunity of bees and is effective in controlling American foulbrood.

7광주지역 한우 분변 내 설사병 병원체 조사

저자 : 고바라다 ( Ba-ra-da Koh ) , 김효중 ( Hyo-jung Kim ) , 오아름 ( A-reum Oh ) , 정보람 ( Bo-ram Jung ) , 박재성 ( Jae-sung Park ) , 이재기 ( Jae-gi Lee ) , 나호명 ( Ho-myoung Na ) , 김용환 ( Yong-hwan Kim )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 93-112 (20 pages)

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Calf diarrhea is a common disease in young claves and is still a major cause of productivity and economic loss in livestock farms. Fecal samples from Korean native cattle (n=100) with diarrhea from 64 farms in Gwangju area, Korea from september 2017 to December 2018 were examined for shedding of important protozoan parasitic, viral and bacterial pathogens using culture, rapid test kit and PCR methods. Of 57 (89.1%) of the 64 Korean native cattle farms examined had samples infected with at least one of the investigated pathogens. Among 100 fecal samples, 88 samples were positive for at least one the twelve pathogens and 51 samples were simultaneously positive for two or more pathogens by culture and PCR assay. Bovine group A rotavirus (BRV) was the most common pathogen, found in 43/100 (43.0%) samples on 32/64 (50.0%) farms. Subsequently, kobuvirus (30.0%), pathogenic E. coli (29.0%), bovine parvovirus (17.0%), Giardia spp. (13.0%), Eimeria spp. (10.0%), Clostridium perfringens type A (8.0%), bovine torovirus (8.0%), bovine viral diarrhea virus (6.0%), bovine coronavirus (5.0%), bovine norovirus (2.0%) and Cryptosporidium spp. (2.0%) were detected. Nebovirus, kırklareli virus, bovine adenovirus, Salmonella spp. and intestinal parasites were not detected. Of the 72 calves sampled in this age group, 64 (88.9%) samples were positive for at least one enteropathogen. BRV was identified in 34/72 (47.2%) samples from 27/48 (56.3%) farms. Subsequently, pathogenic E. coli (30.6%), kobuvirus (29.2%), BPaV (22.2%), Giardia spp. (15.3%), Eimeria spp. (9.7%), BVDV (6.9%), Cl. perfringens type A (6.9%), BCoV (4.6%) and Cryptosporidium spp. (2.8%) were detected in fecal samples. A total of ninety-six strains of E. coli were isolated from one hundred fecal samples collected from Korean native cattle with diarrhea. The presence of stx1, stx2, eaeA, LT, STa, STb, ehxA, saa, F4, F5(K99), F6, F17, F18 and F41 genes in the isolates was investigated by PCR. Out of ninety-six E. coli isolates screened for specific genes, 30 strains E. coli were identified to harbor shiga toxin-producing E. coli (STEC) 7 (7.3%), enterohemorrhagic E. coli (EHEC) 8 (8.3%), enteropathogenic E. coli (EPEC) 6 (6.3%), enterotoxigenic E. coli (ETEC) 2 (2.1%) and STEC/ETEC hybrid 7 (7.3%). This study provides epidemiological estimates of the prevalence of Korean native cattle's enteropathogens in Gwangju area, Korea, which would be used for cattle farmers and veterinarians to select appropriate therapeutic method.

8방목중인 한우에서 발생한 급성 타일레리아증 치료

저자 : 임연수 ( Yeoun-su Lim ) , 김영준 ( Young Jun Kim ) , 김종호 ( Jongho Kim ) , 공주연 ( Jooyeon Kong ) , 송근호 ( Kunho Song )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 113-116 (4 pages)

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Bovine theileriosis caused by Theileria sergenti is a tick-borne hematoprotozoan disease that is characterized by chronic anemia and fever in cattle. In this study, results of microscopic examination and PCR detection confirmed 17 Korean native cattle with emaciation and fever as acute bovine theileriosis caused by T. sergenti. Buparvaquone was injected as treatment, but was proved to be an inappropriate measure according to our study. After 6 months of injection, clinical signs and hematological values were recovered, but T. sergenti was still identified in blood sample as a result of microscopic exam and PCR. These results suggest that continuous management is necessary to control bovine theileriosis. Therefore, findings of this study may provide significant guideline on the control of bovine theileriosis.

9Identification of Korean native cattle persistently infected with BVDV using Ear-notch method

저자 : Youngsik Kim , Yongkwan Kim , Sook-young Lee , Kyoung-ki Lee , Kyung-hyun Lee , Jae-chan Song , Jae-ku Oem

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 117-120 (4 pages)

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Bovine viral diarrhea Virus (BVDV) infections cause respiratory, gastrointestinal, and reproductive problems, such as infertility, abortion, stillbirth, and sickly offspring. Many countries have reduced the economic damage through the application of different control programmes, and some have successfully eradicated BVD. Detection and elimination of cattle persistently infected (PI) with BVDV is important for BVD eradication because PI cattle are a main source of BVD transmission. In this study, the prevalence of Korean native cattle persistently infected (PI) with BVDV was investigated and determined in 49 farms with 3,050 cattle. The all samples were collected by ear notch sampling. Korean native cattle with initial positives on antigen-ELISA (Ag-ELISA) were sampled again after 3∼4 weeks and cattle with second positives in both Ag-ELISA and immunohistochemistry (IHC) were identified as PI cattle. Among the 49 farms, 14 (28.6%) farms had at least more than one PI cow and 21 (0.69%) of 3,050 cattle were determined as PI cattle. As a result of this work, it is suggested that national BVD eradication program is required to reduce economic losses by BVDV infection in Korean cattle industries.

10국내 젖소의 혈액 대사인자 프로파일 분석

저자 : 정숙한 ( Suk-han Jung ) , 정영훈 ( Young-hun Jung ) , 최창용 ( Changyong Choe ) , 도윤정 ( Yoon Jung Do ) , 조아라 ( Ara Cho ) , 오상익 ( Sang-ik Oh ) , 김은주 ( Eunju Kim ) , 하승민 ( Seungmin Ha ) , 정하연 ( Ha Yeon Jeong ) , 류재규 ( Jae Gyu Yoo ) , 김수희 ( Suhee Kim )

발행기관 : 한국동물위생학회(구 한국가축위생학회) 간행물 : 한국가축위생학회지 (KOJVS) 42권 2호 발행 연도 : 2019 페이지 : pp. 121-126 (6 pages)

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Metabolic profile test is used to evaluate nutritional imbalance and metabolic disease in dairy cows. The reference intervals of metabolic parameters may change according to nation, region, decades, and maintenance system. Despite the need to be periodically updated for the reference intervals of metabolic parameters, it has rarely been investigated in Korea. Therefore, this aim of study was to provide the reference intervals of metabolic parameters using dairy cows surveyed in Korea during recent years. A metabolic profile test was conducted for 2,976 clinically healthy dairy cows in Korea. Blood samples were collected for the analysis of serum metabolites. This study provided reference intervals of thirteen metabolic parameters (β-hydroxybutyrate [β-HB], non-esterified fatty acids [NEFA], glucose, total cholesterol [T-COL], total protein, albumin, globulin, blood urea nitrogen [BUN], aspartate aminotransferase [AST], gamma-glutamyl transferase [GGT], calcium, phosphorus, and magnesium). BUN and AST values of the current study were higher than those of previous studies. In the present study, the other metabolic parameters showed low or similar value compared to previous results. Moreover, β-HB, NEFA, T-COL, ALB, BUN, AST, and GGT values were affected by lactation period. This study provided information on the reference intervals of metabolites in healthy dairy cows in Korea. The reference intervals from the present study would be useful in managing and diagnosing disease of dairy cows. However, careful attention should be given in interpreting disease condition for metabolites affected by lactation.

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60권 8호 ~ 60권 8호

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한국축산학회지
60권 7호 ~ 60권 7호

KCI등재

동물자원연구
29권 2호 ~ 29권 2호
발행기관 최신논문
자료제공: 네이버학술정보
발행기관 최신논문
자료제공: 네이버학술정보

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