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Sero-Epidemiological Study Of Brucellosis And Leptospirosis In Cattle And Buffaloes

by Arshad, M | Dr. Muhammad Akram Munir | Dr. Mohammad Naeem | Dr. Muhammad | Faculty of Veterinary Sciences.

Material type: book Book; Format: print Publisher: 1991Dissertation note: Serum samples were coil collected from 400 buffaloes & 400 cattle maintained at Livestock Production Research Institute Bahadurr.aqar Okara The serum samples were subjected to serological test to detect the presence of antibodies against brucellae and leptospirae.. An over all 7.75 percent animals were found to harbour the antibrucella antibodies. The incidence by R8PT was 5.75 percent & 6,5 percent in cattle and buffaloes respectively whereas 7.0 percent and 8.5 percent samples were found positive to brucellae in cattle and buffaloes respectively by SAT. The incidence of leptospirosis in cattle and buffaloes was recorded to he 9.75 percent and 10.0 percent respectively with an over all incidence of 9.38 percent. Availability: Items available for loan: UVAS Library [Call number: 0354,T] (1).

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Inter-Relationship Of Haemagglutination Inhibition (Hi) Titres Against Newcastle Disease Vaccine (Mukteswar Straom) Of Dam's Serum, Egg Yolk And Serum Of The Chick

by Masood ul Hasan Javed | Dr. Mohammad Naeem | Dr. Sheikh Mohammad Amin | Faculty of Veterinary Sciences.

Material type: book Book; Format: print Publisher: 1992Dissertation note: The studies were conducted to determine the inter-relationship of HI titres against Mukteswar strain of NDV in the serum of dam, egg yolk and serum of day-old chick. These studies, helped not only to find out an agreement between the results of HI test of dam, egg yolk and day-old chick, but also for the suitability of the egg yolk for monitoring the immune stauts of laying flock. Four spaced injections of NDV vaccine were given to the experimental birds. The birds which did not receive 4th vaccination were referred as un-vaccinated control. At 21st day post-vaccination1 the antibody titre in yolk was lower than serum but from third week onward, comparable results were obtained with both the samples. Haemagglutination inhibition titre of dam's serum was comparatively stable throughout the experiment where as HI titre of egg yolk slightly fluctuated. Yolk, pepared by chloroform extraction and low-speed centrifugation, performed well in HI test for NOV. Maternal antibody level in day-old chick was related to the titre in dam and egg yolk. The GMT-HI titre of day-old chick fluctuated nearly in the same pattern as GMT-HI titre of egg yolk. Overall it was observed that both egg yolk and day-old chick serum HI antibody titres were slightly lower or equal to dam's serum HI antibody titre and a definite inter- relationship is present among HI titres of dam's serum, egg yolk and day-old chick. The results of this study also proved the suitabilty of egg yolk for HI antibody determination to NOV. Availability: Items available for loan: UVAS Library [Call number: 0363,T] (1).

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