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Immunohistochemistry for detection of Aujeszky's disease virus antigens: immunogold-silver method in tissue sections
1988
Kim, S.B. (Kyongsang National Univ., Chinju (Korea R.). Dept. of Veterinary Medicine)
The present study was done to demonstrate ADV antigens in frozen and paraffin sections from ADV-infected pigs and cell cultures by using of the IGS method. Tissue specimens from 3 young pigs infected with ADV-phylaxia strain and of 2 healthy pigs were used. Fibroblastic cells originated from pig brain and BHK cells were grown and confluent monolayers were infected with the virus. Two monoclonal antibodies and a specific hyperimmune serum to ADV were used as the source of primary antibodies for both the IGS and immunoperoxidase methods. Application of the IGS method yielded a black fine granular reaction in positive areas, and the results were superior to those obtained using the immuno-peroxidase technique for all cases tested. The IGS method might be useful in the detection of various viral antigens in tissue sections
显示更多 [+] 显示较少 [-]Antimicrobial drug susceptibility of Bordetella bronchiseptica isolated from Youngnam swine herds
1988
Jang, H.K. | Kim, B.H. (Kyongbuk National Univ., Taegu (Korea R.). Coll. of Veterinary Medicine)
The In vitro drug susceptibility of 83 strains of Bordetella bronchiseptica recoverd from Korean pigs with atrophic rhinitis was investigated by the use of disk diffusion method. The majority of the organisms were highly resistant in order of prevalence to penicillin (98.7%), ampicillin(91.5%), streptomycin (90.3%), triple sulfa (83.1%), and trimethoprim/sulfamet-hoxazole (70.7%) while none of them were resistant to gentamicin, only 3.6% to colistin, chloramphenicol and kanamycin and 6.0% to tetracycline. The percentage of the organism resistant to bicozamycin, cephalothin and neomycin were 34.9%, 34.1% and 18.4%, respectively. A high prevalence of multiple drug resistance was observed and the 3 most common resistant patterns among 35 patterns noted were Am Pc Sm Sss Sxt(26.5%), Am Cf Pc Sm Sss Sxt(12%) and Am Bm Pc Sm Sss Sxt(9.6%) patterns
显示更多 [+] 显示较少 [-]Studies on porcine parvovirus inactivated vaccine and titration of serum neutralizing antibody
1988
Kwon, H.J. | Yeh, J.G. | Lee, C.K. (Bayer Veterinary Medicine Research Institute)
A porcine parvovirus inactivated vaccine was prepared and inoculated to 7 piglets and also 8 guinea-pigs, and their serum antibodies were titrated. Twenty-two field serum samples of unvaccinated sows were also tested by SN and HI methods. It was observed that SN test was superior over HI test. Therfore, it is suggested that the SN test could well be used in the detection of serum antibody for PPV in vaccinated pigs
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