SERO - EPIDEMIOLOGY OF MANNHEMIA, PASTEURELLA AND BIBERSTEINIA SEROTYPES IN SMALL RUMINANTS IN TANQUA-ABERGELLE DISTRICT, TIGRAY, ETHIOPIA
| dc.contributor.advisor | Dr.Reta Duguma, Girmay W/selassie | |
| dc.contributor.author | Kassaye, Berhe | |
| dc.date.accessioned | 2020-06-18T08:36:44Z | |
| dc.date.accessioned | 2023-11-08T11:36:54Z | |
| dc.date.available | 2020-06-18T08:36:44Z | |
| dc.date.available | 2023-11-08T11:36:54Z | |
| dc.date.issued | 2014-06 | |
| dc.description.abstract | A study was conducted from November 2013 up to June 2014 on epidemiology of Mannhaemia, Pasteurella and Bibersteinia serotypes in sheep and goats in Tanqua-Abergelle district, Central Tigray of Ethiopia. Therefore, the aim of this study was to identify the current serotypes circulating, to measure their magnitude and to identify the risk factors in sheep and goats. Cross-sectional study design was employed. Accordingly, serum from 192 sheep and192 goats of jugular vein were aseptically collected and transported to National Veterinary Institute, Bishoftu, Ethiopia. Indirect haemagglutination test was used for serotyping using known antigens for 8 serotypes. Hence, eight serotypes were identified in both species, namely M. haemolytica serotype A1 (79.4%), A2 (73.7%), A7 (65.5%), B. trehalosi serotype T3 (84.4%), T4 (62.5%), T10 (41.4%), T15 (89.6%) and P. multocida type A (66.9%). Mixed serotypes co-infections were quite common in the area in this study. Majority (57%) of the studied shoats had been also infected simultaneously with 6-8 serotypes. Uni-variate logistic regression analysis was employed to screen the risk factor among the collected variables. Only species and peasant association (origin of the animals) were significantly associated to the serotypes infections. Exceptionally, for M. haemolytica serotype A1 age > 2 ½ years was a risk factor, whilst for B. trehalosi serotype T15 body weight (11-20 kg). In multi-variate logistic regression, only peasant association was a significant risk factor for majority of the serotype. However, Spp of the animals in addition to PA was a risk factor for B. trehalosi serotype T3 and T4 infection. In conclusion, shoats of the study area were infected with high overall prevalence of M. haemolytica serotypes (98.7%) and B. trehalosi serotypes (98.7%) than P. multocida type A (66.9%). Peasant association and animal species were potential risk factors for infection. Thus, the currently ongoing monovalent killed P. multocida serotype A-vaccine protection become low in the face of mixed co-infection by different serotypes and virulence factors difference. So multivalent vaccine will help to effectively prevent this disease in the study area and should be developed. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/123456789/21731 | |
| dc.language.iso | en | en_US |
| dc.subject | Epidemiology | en_US |
| dc.subject | Serotypes | en_US |
| dc.subject | Predisposing factors | en_US |
| dc.subject | Small Ruminants | en_US |
| dc.title | SERO - EPIDEMIOLOGY OF MANNHEMIA, PASTEURELLA AND BIBERSTEINIA SEROTYPES IN SMALL RUMINANTS IN TANQUA-ABERGELLE DISTRICT, TIGRAY, ETHIOPIA | en_US |
| dc.type | Thesis | en_US |
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