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Epidemiological characteristics of Salmonella spp. isolated from different stages of commercial swine farms
2005
Suh, D.K. (Research Institute of Health and Environment, Daegu, Republic of Korea) | Jung, S.C. (National Veterinary Research and Quarantine Service, MAF, Anyang, Republic of Korea), E-mail: jungsc@nvrqs.go.kr
Epidemiological characteristics of a total of 48 swine herd with diarrhea or a history of diarrhea in Gyeongsang-do between 1999 and 2000 were performed to evaluate the prevalence of Salmonella spp., their serotypes and antibiotic resistance patterns with respect to the different stages of swine production system. A total of 139 Salmonella spp. (21%) were isolated from 662 fecal samples and the overall herd prevalence of Salmonella spp. ranged from 12.5% to 88%. The average prevalence of Salmonella spp. from swine stages of suckling/nursery, grow/finisher and sow stage were 25.7%, 19.2% and 18.4%, respectively.
Show more [+] Less [-]Incidence of micronuclei in lymphocytes of pig in the high background radiation area (Cheongwon-gun and Boeun-gun)
2005
Lee, H.J. (Chonnam National University, Gwangju, Republic of Korea) | Kang, C.M. (Korea Institute of Radiological and Medical Science, Seoul, Republic of Korea) | Kim, I.H. (Chungbuk National University, Cheongju, Republic of Korea) | Kim, T.H. (Kyungpook National University, Daegu, Republic of Korea) | Ryu, S.Y. (Chungnam National University, Daejeon, Republic of Korea) | Jo, S.K. (Korea Atomic Energy Research Institute, Daejeon, Republic of Korea) | Kim, S.R. (Chonnam National University, Gwangju, Republic of Korea) | Lee, J.H. (Chonnam National University, Gwangju, Republic of Korea) | Kim, J.S. (Chonnam National University, Gwangju, Republic of Korea) | Kim, J.C. (Chonnam National University, Gwangju, Republic of Korea) | Kim, S.H. (Chonnam National University, Gwangju, Republic of Korea), E-mail: shokim@chonnam.ac.kr | Choi, S.Y. (Korea Institute of Radiological and Medical Science, Seoul, Republic of Korea)
Cytogenetic and hematological analysis was performed in peripheral blood obtained from pigs bred in the high background radiation areas (HBRA) (Cheongwon-gun and Boeun-gun) and a control area. The frequencies of gamma-ray induced micronuclei (MN) in the cytokinesis-blocked (CB) lymphocytes at several doses were measured in three pigs. An estimated dose of radiation was calculated by a best fitting linear-quadratic model based on the radiation-induced MN formation from the swine lymphocytes exposed in vitro to radiation over the range from 0 mGy to 1,969 mGy.
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