Immunomodulatory Effect Of Brucella Abortus Vaccine Strain Rb51 In Cross Bred Cows At Private Farms In Lahore
By: Shafique, M
| Dr. Imtiaz Hussain Khan.
Contributor(s): Dr. M. Akram Munir | Dr. M. Aleem | Faculty of Veterinary Sciences.
Material type: 
BookPublisher: 1999Subject(s): Department of TheriogenologyDDC classification: 0589,T Dissertation note: This project was designed to eradicate dangerous problem (Brucellosis) facing by livestock sector. Various trials of vaccine SRB51 were conducted and serum samples were taken to see the immune status of the animals by using serum tube agglutination test
(STAT).
For this purpose 100 animals of different age groups were examined and lactating or non lactating animals were randomly selected from different private dairy farms in and around Lahore. The serum samples were collected and subjected to serological tests to detect the presence of antibodies against brucella abortus. The incidence of brucellosis by RBPT was 16% and 14% by Standard tube agglutination test (STAT) in cattle. After screening the animals, we got 30 animals which were brucella abortus free, among these some animals were pregnant. We vaccinated the animal at neck region subcut with Brucella abortus strain RB51 vaccine. After vaccination we found that antibody titer was higher at four weeks and begins to lower at eight weeks and later on, by using STAT. We also observed in this study that no animal was aborted and no premature or weak calf was delievered at parturition. So it can be said that the Brucella abortus strain RB51 vaccine is a safe vaccine and it has been used in a lot number of states of America. The results of this study have revealed an alarming prevalence of brucellosis in cattle at private farms which calls for an emergent response of experts for reappraisal and reassessment of the present brucellosis control situation, especially when the disease is an important zoonosis and potential threat to the human health.
It is anticipated that the trials would open new vistas and expose livestock (Dairy) scientists to new horizons of technical know how regarding brucellosis and associated problems. It is further hoped that the results obtained would make tangible contribution towards livestock and dairy industry.
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Thesis
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UVAS Library Thesis Section | Veterinary Science | 0589,T (Browse shelf) | Available | 0589,T |
This project was designed to eradicate dangerous problem (Brucellosis) facing by livestock sector. Various trials of vaccine SRB51 were conducted and serum samples were taken to see the immune status of the animals by using serum tube agglutination test
(STAT).
For this purpose 100 animals of different age groups were examined and lactating or non lactating animals were randomly selected from different private dairy farms in and around Lahore. The serum samples were collected and subjected to serological tests to detect the presence of antibodies against brucella abortus. The incidence of brucellosis by RBPT was 16% and 14% by Standard tube agglutination test (STAT) in cattle. After screening the animals, we got 30 animals which were brucella abortus free, among these some animals were pregnant. We vaccinated the animal at neck region subcut with Brucella abortus strain RB51 vaccine. After vaccination we found that antibody titer was higher at four weeks and begins to lower at eight weeks and later on, by using STAT. We also observed in this study that no animal was aborted and no premature or weak calf was delievered at parturition. So it can be said that the Brucella abortus strain RB51 vaccine is a safe vaccine and it has been used in a lot number of states of America. The results of this study have revealed an alarming prevalence of brucellosis in cattle at private farms which calls for an emergent response of experts for reappraisal and reassessment of the present brucellosis control situation, especially when the disease is an important zoonosis and potential threat to the human health.
It is anticipated that the trials would open new vistas and expose livestock (Dairy) scientists to new horizons of technical know how regarding brucellosis and associated problems. It is further hoped that the results obtained would make tangible contribution towards livestock and dairy industry.
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