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Factors influencing enhanced Salmonella typhimurium infection in Eimeria tenella-infected chickens.
1985
Baba E. | Fukata T. | Arakawa A.
Viral matirx inclusion bodies in myocardium of lymphoid leukosis virus-infected chickens.
1985
Gilka F. | Spencer J.L.
Studies on the antigenicity and immunogenicity of Newcastle disease virus inactivated with binary ethylenimine
1985
Park, B.K. | Jeon, Y.S. | Lee, Y.S. (Seoul National Univ., Suwon (Korea R.). Coll. of Veteinary Medicine) | Rhee, Y.O. (Rural Development Administration, Anyang (Korea R.). Veterinary Research Inst.)
Effects of binary ethylenimine (BEI) treatment on the inactivation of infectivity and hemagglutinin of Newcastle disease virus (NDV) were studied in comparison with those of formalin treatment. Immune responses of chickens vaccinated with BEI- inactivated NDV vaccines were also investigated. Complete loss of infectivity of NDV (BI) was observed at 3, 7, and 24 hrs after the treatment at 37 deg C with BEI concentrations of 0.01M, 0.005M and 0.001M, respectively
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