Comparative Efficacy Of Haemagglutination Inhibition Test And Enzymne Linked Immunosorbent Assay In Detection Of Antibody Response To Newcastle Disease Virus
By: Shafiq Ahmad Noori
| Muhammed Akram Muneer.
Contributor(s): Ehtisham | Muhammed Naeem | Faculty of Veterinary Sciences.
Material type: 
BookPublisher: 1991Subject(s): Department of MicrobiologyDDC classification: 0216,T Dissertation note: The present study was conducted to observe the effects of various temperatures on the immune system, growth rate and various lymphoid organs of chickens.
Five hundred day-old chicks were reared upto six weeks of -age under various temperature ranges. These birds were randomly divided into 5 groups (each consisting of 100 chicks), A, B, C, D and E. Birds in group A were kept at 25°C and given NDV vaccine, birds in group B were kept at 37°C and administered NDV vaccine, birds in group C were housed at 42°C and inoculated with NDV vaccine, birds in group D were kept at ambient temperature and given NDV vaccine and those in group E were kept at 37°C and not vaccinated with NDV.
Blood samples from all the birds were collected on days 1, 7, 14, 21, 28, 35 and 42. Live body weights of the birds were recorded on days 1, 21, 28, 35 and 42. At the termination of the study all the surviving birds were sacrificed to study the various lymphoid organs such as thymus, bursa of Fabricius, spleen and liver.
Heat stress at higher temperature enhanced the immune response of the chicken vaccinated against NDV as compared to the birds kept at lower temperature and non-vaccinated birds. The heat stress at various temperatures did not significantly affect:, the bursal and body weight gain, however, heat stress significantly affected the liver, splenic and thymic weight gain.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode | Item holds |
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Thesis
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UVAS Library Thesis Section | Veterinary Science | 0216,T (Browse shelf) | Available | 0216,T |
The present study was conducted to observe the effects of various temperatures on the immune system, growth rate and various lymphoid organs of chickens.
Five hundred day-old chicks were reared upto six weeks of -age under various temperature ranges. These birds were randomly divided into 5 groups (each consisting of 100 chicks), A, B, C, D and E. Birds in group A were kept at 25°C and given NDV vaccine, birds in group B were kept at 37°C and administered NDV vaccine, birds in group C were housed at 42°C and inoculated with NDV vaccine, birds in group D were kept at ambient temperature and given NDV vaccine and those in group E were kept at 37°C and not vaccinated with NDV.
Blood samples from all the birds were collected on days 1, 7, 14, 21, 28, 35 and 42. Live body weights of the birds were recorded on days 1, 21, 28, 35 and 42. At the termination of the study all the surviving birds were sacrificed to study the various lymphoid organs such as thymus, bursa of Fabricius, spleen and liver.
Heat stress at higher temperature enhanced the immune response of the chicken vaccinated against NDV as compared to the birds kept at lower temperature and non-vaccinated birds. The heat stress at various temperatures did not significantly affect:, the bursal and body weight gain, however, heat stress significantly affected the liver, splenic and thymic weight gain.
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