한우의 연령에 따른 혈액 및 혈청 화학치 분석

조현웅 ( Hyun Ung Cho ),고원석 ( Won Seuk Ko ),손향원 ( Hyong Won Son ),이미진 ( Mi Jin Lee ),송희종 ( Hee Jong Song ),박진호 ( Jin Ho Park ) 한국가축위생학회 2008 韓國家畜衛生學會誌 Vol.31 No.1

Investigations for hematologic and biochemical values and the differential count of WBC for Korean indigenous cattle(KIC)is rarely performed. Therefore, when the index of complete blood counts(CBC) and biochemical analysis of KIC was requested, it had many difficulties to make the results for blood condition since the standard hemato-logic and biochemical values of KIC are lacking. In the present study, we have investi-gated the hematologic and biochemical values and the differential count of WBC for blood of total 252 KIC and 17 striped cattle(SC) as a control. As a result, the mean values of RBC and platelet of KIC were significantly decreased by age (P<0.05). The mean values of RBC, HCT, MCV and MCHC between KIC and SC of the same age(2-3 years) showed the statistical significance(P<0.05). Also, in the WBC of KIC, the mean values were decreased according to the age from 12.8×103/㎕ under 1 year to 8.5×103/㎕ over 5 years. In the differential count of WBC of KIC, it showed generally the rates of 45% lymphocyte and 35% segmented neutrophil. In the biochemi-cal analysis, the mean values of BUN and globulin were significantly increased according to the age(P<0.05). Additionally, in comparative analysis between preg-nant and non-pregnant group of KIC, the mean values of Hg and HCT in pregnant group were significantly decreased (P<0.05). In conclusion, data obtained from this study may be valuable as a standard for interpretation of the results in hematologic and biochemical analysis of KIC.

전북 서부지역 송아지 설사병 원인체 조사

김광현 ( Kwang Hyun Kim ),이지영 ( Ji-young Lee ),곽길한 ( Gill-han Kwak ),조현웅 ( Hyun Ung Cho ) 한국동물위생학회(구 한국가축위생학회) 2021 韓國家畜衛生學會誌 Vol.44 No.1

This study was performed to investigate the causative agents of diarrhea disease from Korean native calves in Jeonbuk western area. A total of 273 samples were collected in 2019. Analysis of causes of diarrhea shows that BVDV 8.1% (22/273), BRVA 17.6% (48/273), BCV 7.7% (21/273), E. coli 13.6% (37/273), Clostridium 5.1% (14/273), Parasite 1.1% (3/273) and other 46.9% (128/273) were detected. For major virus diseases (according to dietary changes), less 1 month 9.1.% (2/22), 1∼3 months 18.2% (4/22), 4∼6 months 18.2% (4/22), 7∼13 months 36.4% (8/22) and over 13 months 18.2% (4/22) in BVDV, less 1 month 10.4.% (5/48), 1∼3 months 60.4% (29/48), 4∼6 months 4.2% (2/48), 7∼13 months 4.2% (2/48) and over 13 months 20.8% (10/48) in BRVA, and less 1 month 23.8% (5/21), 1∼3 months 23.8% (5/21), 4∼6 months 23.8% (5/21), 7∼13 months 19.0% (4/21) and over 13 months 9.5% (2/21) in BCV could see that the infection of the pathogen changed due to dietary changes. In particular, the infection rate of the BVDV is the highest at 36.4% (8/22) between 7∼13 months, which requires the need to build research on the PI’s that could have the effect of spreading the disease, different from those of BCV and BRVA. These results are likely to contribute to improving the productivity of raising at Korean native cattle.

전염성 F낭병 항체가 조사 및 유전자 분석

추금숙 ( Keum Suk Chu ),조현웅 ( Hyun Ung Cho ),한재철 ( Jae Cheol Han ) 한국동물위생학회 2012 韓國家畜衛生學會誌 Vol.35 No.2

The strategy for infectious bursal disease (IBD) control and its success rate under field conditions depends on hygiene management, IBD field pressure, level, and variation in maternally derived IBD antibodies. This study investigated the level of IBD-specific antibody by ELISA and the prevalence of IBD virus by PCR in broilers, white-semi broilers, and Korean native chickens raised in Jeongeup, Jeonbuk. IBD-specific maternally derived antibodies were measured from 698 chickens and the mean titers of maternal antibodies were 3,572±1,402 in broilers, 1,262±762 in white-semi broilers, and 1,932±912 in Korean native chickens. At 2 weeks after vaccination, the geometric mean antibody titers of broiler, white-semi broiler, and Korean native chicken were 582±427, 3255±1,080, and 1,023±499, respectively. According to sequence analysis of the variable virion protein 2 gene, 4 isolates were found to be very virulent IBDV, 9 isolates classical virulent, and 2 isolates intermediate plus vaccine strain.

돼지유행성설사병(PEDV) 생독과 사독백신의 면역형성 비교연구

권미순 ( Mee Soon Kwon ),조현웅 ( Hyun Ung Cho ),이은미 ( Eun Mi Lee ),이지영 ( Ji Yoog Lee ),서형석 ( Heyng Seok Seo ),임정철 ( Jeong Cheol Im ),허부홍 ( Boo Hong Hur ) 한국가축위생학회 2009 韓國家畜衛生學會誌 Vol.32 No.3

Porcine transmissible gastroenteritis virus (TGEV), porcine epidemic diarrhea virus (PEDV) and rotaviruses are considered as the most important causative agents of diarrhea in piglets. The study established 3 method vaccination programs to prevent PEDV. A (LL)group inoculated twice vaccinations on 2-weeks-interval during the late term of pregnant sows with PEDV live vaccine. The B (LKK) group was applied that one time single PEDV live vaccine at the pre-mate followed by the TGEV·PEDV combined inactivated vaccine (twice vaccination on 2-weeks interval at the third-trimester). C (KK) group was applied to sow which inoculated twice vaccination on 2-weeks-interval during the late term of pregnant sows with by the TGEV, PEDV combined inactivated vaccine. As the result of SN test on sows in the pig farm before vaccination, antibody titers was showed 9/45 (20.0%). By comparison with the serum neutralizing antibody titers against PEDV of the vaccination programs after PEDV of the vaccination, A group and B group vaccination method was higher than those of C group in sows. In the piglets up to 2 weeks of age, A group was showed antibody titers of 17/22 (81.8%) that showed 2-128, and B group was showed antibody titers of 30/37 (81.1%) that showed 2-512, and C group was showed antibody titers of 14/28 (50.0%) that showed 2-32. On the other hand, PEDV antibody titers were tested for the survey. As the results of SN test, Aujeszky`s disease survey in 54 pig farms from november 2005 to august 2006, antibody titers of 47/286 (16.4%) showed above 2. Five breeding farms were antibody titers of 38/77 (49.4%), Wanggung zone farms antibody titers of 59/85 (69.4%). In pigs farms vaccinated the first of twice PEDV live vaccine, and after 6 month, the second of twice TGEV·PEDV combined inactivated vaccine (LLKK, 256-1024 titer) method was higher than those of vaccinated twice the early term of pregnant, and twice the late term of pregnant sows of PEDV live vaccine (LLLL, 32 titer).

강원(江原) 동해안지역(地域) 도축돈(屠畜豚)의 전염성(傳染性) 관절염(關節炎)에 관한 조사(調査)

육심용 ( Sim Yong Youk ),조현웅 ( Hyun Ung Cho ),김광제 ( Kwang Jae Kim ),안현철 ( Hyun Cheol An ),김동훈 ( Dong Hoon Kim ) 한국가축위생학회 1993 韓國家畜衛生學會誌 Vol.16 No.2

This study was conducted to investigate the infectious arthritis on pigs slaughter in eastern Kangweon. During the period of between Feb. and Nov. 1992, 469 pigs were sampled at six abattoirs. Bacterial isolation and identification were perfomed from the arthritic lesions. In addition, drug susceptibility for the major isolated microoganisms were examined. The results obtained were summarized as follows: 1. From arthritic lesions bacteria were most frequently isolated, isolation rate being 21.1%. 2. The bacteria isolated from arthritic lesion, Staphylococcus spp.(33.9%), Coli form(39.3%) were most frequently isolated, while the genera of Mycoplasma were detected less frequently. 3. Antimicrobial drug susceptibility of the major organisms showed that all the isolated bacteria were susceptible to SXT(91.0%), cephalothin(82.5%), but resisted to penicillin and streptomycin.

강원 동해안 지역 돼지 폐렴에서 분리한 pasteurella multocida에 대한 조사

김광재 ( Kwang Jae Kim ),안현철 ( Hyun Cheol An ),조현웅 ( Hyun Ung Cho ),육심용 ( Sim Young Youk ),전현정 ( Hyun Jeong Jeon ),김동훈 ( Dong Hoon Kim ) 한국가축위생학회 1994 韓國家畜衛生學會誌 Vol.17 No.2

The present study was conducted to investigate the incidence of pasteurella multocida(p. muitocida) infection and some properties of the isolated organisms from the swine herds in Eastern Kangwon during the periods from March 1993 to November 1993. The results obtained were summerized as follows: 1. The lungs of 180 slaughtered pigs were sampled and p. muitocida was isolated from 38 pigs(21.1%) and cultured positive. 2. The majority of biochemical and cultural properties of the p. muitocida isolates were identical to those of the standard strains. 3. We investigated the capsular serogroup and drug susceptibility of 38 isolates of p. muitocida from pigs with pneumonic lesions 4. p. muitocida isolateds were typed for capsular serogroupes A by hyaluronidase inhibition of capsule and D by acriflavin auto agglutination. Most isolates(55.3%) were type A, 15.8% were type D, and the remaining 28.9% were untypable 5. In antimicrobial susceptibility test these isolates of p. muitocida were susceptible in order of colistin(94.7%), ampicillin(94.7%), cepalothin(92.1%), gentamicin(92.1 %), amikacin(89.5%) , but the majority of them were resistant in order of neomycin(26.3%), teracycline(23.7%), streptomycin (15.8%).

육계에서 봉입체성간염 및 전염성 F낭병 발생 증례

이지영 ( Ji Young Lee ),권미순 ( Mee Soon Kwon ),추금숙 ( Keum Suk Chu ),조현웅 ( Hyun Ung Cho ),이정원 ( Jeoung Won Lee ),서재식 ( Jae Sik Seo ),송희종 ( Hee Jong Song ) 한국가축위생학회 2007 韓國家畜衛生學會誌 Vol.30 No.3

This is a case report on the occurrence of inclusion body hepatitis(IBH) and infectious bursal disease(IBD) among the broilers in a local farm located in Wanju, Jeollabukdo. Mostly IBH could be caused by adenovirus if the bird`s immune system was first weakened by exposure to immunosupressive agents such as infectious bursal disease virus(IBDV) and chicken anemia virus(CIAV). However IBH primary occurred before IBD in this case. And recent work has demonstrated that virulent adenovirus alone can produce the disease.

전북지역 도축 출하돈 병변 조사

임미나 ( Mi Na Lim ),백귀정 ( Kui Jeong Baek ),유기홍 ( Ki Hong You ),조현웅 ( Hyun Ung Cho ) 한국동물위생학회 2015 韓國家畜衛生學會誌 Vol.38 No.2

Respiratory disease in pigs is common in modern pork production worldwide and is often referred to as porcine respiratory disease complex (PRDC). PRDC is polymicrobial in nature, and results from infection with various combinations of primary and secondary respiratory pathogens. The control of swine respiratory disease requires an understanding of the interactions between the organisms that can cause this illness, the pig and management of the environment. This study was carried out to investigate the lesion of red internal organs in slaughtered pigs and provided assistant data for pig farms. A total of 900 lung samples, 45 farms were collected randomly from slaughtered pigs in Jeonbuk province from April to December in 2014. Gross lesions such as swine enzootic pneumonia (SEP), pleuritis, pleuropneumonia, pericarditis, liver white spots were examined for the pigs. Overall prevalence of SEP was 70.8%. According to season, the incidence occurred higher in summer than winter, fall and spring. The mean SEP score was 1.4, the highest incidence occurred in fall. The prevalence of pleuropneumonia, pleuritis, pericarditis, and milk spot was 26.1%, 71.4%, 2.8%, 21.6%, respectively. In the detection of pathogens, PRRS was not detected, PCV2 was positive in 87.6%.

전북지역 도축돈 호흡기질병 조사

임미나 ( Mi-na Lim ),김철민 ( Chul-min Kim ),박영민 ( Young-min Park ),송주태 ( Ju-tae Song ),진재권 ( Jae-kwon Jin ),조현웅 ( Hyun-ung Cho ) 한국가축위생학회 2016 韓國家畜衛生學會誌 Vol.39 No.4

The present study was conducted to investigate the lesion of red internal organs in slaughtered pigs and provided assistant data for pig farms. During March to December 2015, a total of 1,160 lung samples out of 58 herds were collected randomly from pigs slaughtered in Jeonbuk province. In addition, 290 hilar lymph nodes from pig with pneumonic lung lesion (5 samples per herd) were screened for selected viral and bacterial pathogens. Gross lesions of lungs such as swine enzootic pneumonia (SEP), pleuritis, pleuropneumonia, pericarditis and liver white spots were examined. The overall prevalence of SEP was 64.3% (746/1,160). In the analysis of seasonal prevalence, there was an increase of occurrence during the spring months (287/400, 71.8%) and decrease during the fall months (93/200, 46.5%) among the whole herds. The mean number of SEP score per pig was 1.20±1.28. The prevalence of pleuropneumonia, pleuritis, pericarditis, and milk spot was 25.5% (296/1,160), 44.1% (512/1,160), 3.8% (44/1,160) and 17.6% (204/1,160), respectively. The most frequent region with lung lesion was diaphragmatic lobes (left 17.1%, right 17.3%). In the detection of viral pathogens by PCR, porcine circovirus type2 (PCV2) was positive in 86.9% (252/290), while porcine reproductive and respiratory syndrome virus (PRRSV) was not detected, In the case of bacterial pathogens, 50 microorganisms were isolated by PCR and/or microbiological test. The most frequently isolated bacteria was Streptococcus suis (20, 34.4%), followed by Pasteurella multocida (17, 29.3%), Streptococcus spp. (11, 3.4%), Actinobacillus pleuropneumoniae (2, 8.9%).