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Uddin, Mohammed Arif
- Seroprevalence of Bovine Viral Diarrhea Virus in Crossbred Dairy Cattle in Bangladesh
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Materials and Methods: The antibody against BVDV in crossbred dairy cattle serum was detected by indirect enzyme-linked immunosorbent assay. The association of different categorical variables in the prevalence of BVDV has been studied. Blood samples were collected and analyzed to know the hematological variations in the study population.
Results: The overall seroprevalence of BVDV in the study area was 51.1% (95% confidence interval [CI], 40.5-61.5). Among different physiological stages of animals, the highest 57.1% (95% CI, 42.2-71.2) prevalence was in case of non-pregnant animals. Aborted cows were found to be significantly (p<0.05) more seropositive 77.8% (95% CI, 52.4-93.6) than the non-aborted cows (77.8%, 95% CI, 52.4-93.6, compared to 44.7%, 95% CI, 33.3-56.6, respectively). Cows having the history of retained placenta were found more positive than without the history of retained placenta (63.2%, 95% CI, 38.4-83.7, compared to 54.7%, 95% CI, 40.4-68.4, respectively). Among the animals of different age groups, BVDV seroprevalence was higher 61.3% (95% CI, 42.2-78.2) in animals of more than 3 years up to 5 years, whereas 32% was in case of 0-1-year-old. Significant variation found in different geographical areas of the study area. Hematological analyses have shown variation between the BVDV positive and negative animals.
Conclusion: Seroprevalence of BVDV found to be high in the study area is also economically important and cause significant damage to the production industry. Therefore, it is necessary to conduct effective control measures to reduce the burden of BVDV.
Authors
Mohammed Arif Uddin
1,
A. S. M. Lutful Ahasan
2,
Kamrul Islam
3,
Md. Zohorul Islam
3,
Altaf Mahmood
4,
Ariful Islam
5,
Kazi Muhammad Fakhrul Islam
6,
Abdul Ahad
3
Affiliations
1 Department of Livestock Services, Ministry of Fisheries and Livestock, Government of the People’s Republic of Bangladesh, BD
2 Department of Anatomy and Histology, Chittagong Veterinary and Animal Sciences University, BD
3 Department of Microbiology and Veterinary Public Health, Chittagong Veterinary and Animal Sciences University, BD
4 Department of Livestock and Dairy Development, Government of Punjab, Punjab, PK
5 EcoHealth Alliance, New York, US
6 Department of Physiology, Biochemistry and Pharmacology, Chittagong Veterinary and Animal Sciences University, BD
1 Department of Livestock Services, Ministry of Fisheries and Livestock, Government of the People’s Republic of Bangladesh, BD
2 Department of Anatomy and Histology, Chittagong Veterinary and Animal Sciences University, BD
3 Department of Microbiology and Veterinary Public Health, Chittagong Veterinary and Animal Sciences University, BD
4 Department of Livestock and Dairy Development, Government of Punjab, Punjab, PK
5 EcoHealth Alliance, New York, US
6 Department of Physiology, Biochemistry and Pharmacology, Chittagong Veterinary and Animal Sciences University, BD
Source
Veterinary World, Vol 10, No 8 (2017), Pagination: 906-913Abstract
Aim: The study was conducted to determine the seroprevalence of bovine viral diarrhea virus (BVDV) and hematological features in crossbred dairy cattle in Chittagong, Bangladesh.Materials and Methods: The antibody against BVDV in crossbred dairy cattle serum was detected by indirect enzyme-linked immunosorbent assay. The association of different categorical variables in the prevalence of BVDV has been studied. Blood samples were collected and analyzed to know the hematological variations in the study population.
Results: The overall seroprevalence of BVDV in the study area was 51.1% (95% confidence interval [CI], 40.5-61.5). Among different physiological stages of animals, the highest 57.1% (95% CI, 42.2-71.2) prevalence was in case of non-pregnant animals. Aborted cows were found to be significantly (p<0.05) more seropositive 77.8% (95% CI, 52.4-93.6) than the non-aborted cows (77.8%, 95% CI, 52.4-93.6, compared to 44.7%, 95% CI, 33.3-56.6, respectively). Cows having the history of retained placenta were found more positive than without the history of retained placenta (63.2%, 95% CI, 38.4-83.7, compared to 54.7%, 95% CI, 40.4-68.4, respectively). Among the animals of different age groups, BVDV seroprevalence was higher 61.3% (95% CI, 42.2-78.2) in animals of more than 3 years up to 5 years, whereas 32% was in case of 0-1-year-old. Significant variation found in different geographical areas of the study area. Hematological analyses have shown variation between the BVDV positive and negative animals.
Conclusion: Seroprevalence of BVDV found to be high in the study area is also economically important and cause significant damage to the production industry. Therefore, it is necessary to conduct effective control measures to reduce the burden of BVDV.
Keywords
Bovine Viral Diarrhea Virus, Crossbred Dairy Cattle, Enzyme-Linked Immunosorbent Assay, Seroprevalence, Bangladesh.Full Text