Effect Of Storage Temperature On Pathogenicity On Hydropericardium Syndrome Virus In Chickens
By: Arshad Dar, M
| Muhammed Akram Muneer.
Contributor(s): Muhammed | Muhammed Naeem | Faculty of Veterinary Sciences.
Material type: 
BookPublisher: 1991Subject(s): Department of MicrobiologyDDC classification: 0210,T Dissertation note: Present study was designed to work out effect of different storage temperatures, and storage periods on pathogenicity of UPS virus. Observations on demonstration of inmiunosuppresive effect of UPS virus and its antigenic relationship with viruses producing similar type of problems in meat type chickens, were also made. Results of this study have shown no significant difference in virulence upto six weeks of storage at the given temperatures. Disease induction was done in relatively younger birds. Histopathological study of different organs from morbid birds showed changes similar to those reported by other workers.
Immunosuppressive effect of HPSV was demonstrable by low titers of antibodies against NDV and UPS. Indirect haemagglutination test with sensitized human "0" positive erythrocytes for detection of antibodies against HPSV worked effectively. The test is expected to become more sensitive with use of more purified antigen. Sheep RBCs sensitized without use of chromium chloride did not work in IHA test. Slight antIgenic similarity between HPSV and IBD virus iàs demonstrable in Agar gel diffusion test.
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Thesis
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UVAS Library Thesis Section | Veterinary Science | 0210,T (Browse shelf) | Available | 0210,T |
Present study was designed to work out effect of different storage temperatures, and storage periods on pathogenicity of UPS virus. Observations on demonstration of inmiunosuppresive effect of UPS virus and its antigenic relationship with viruses producing similar type of problems in meat type chickens, were also made. Results of this study have shown no significant difference in virulence upto six weeks of storage at the given temperatures. Disease induction was done in relatively younger birds. Histopathological study of different organs from morbid birds showed changes similar to those reported by other workers.
Immunosuppressive effect of HPSV was demonstrable by low titers of antibodies against NDV and UPS. Indirect haemagglutination test with sensitized human "0" positive erythrocytes for detection of antibodies against HPSV worked effectively. The test is expected to become more sensitive with use of more purified antigen. Sheep RBCs sensitized without use of chromium chloride did not work in IHA test. Slight antIgenic similarity between HPSV and IBD virus iàs demonstrable in Agar gel diffusion test.
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