Prevalence and risk factors of bovine tuberculosis in dairy cattle in Eritrea

Show simple item record Ghebremariam, Michael K. Rutten, Victor P.M.G. Vernooij, J.C.M. Uqbazghi, K. Tesfaalem, T. Butsuamlak, T. Idris, A.M. Nielen, M. Michel, Anita Luise 2016-06-09T06:52:37Z 2016-06-09T06:52:37Z 2016-05-25
dc.description Additional file 1: Frequency of skin thickness (mm) after 72 h post inoculation in both the avian and bovine sites and the differences within the two (Bovine 72 h - Avian 72 h). The first two columns show the skin thicknesses on the avian site of injection after 72 h of the PPD-A inoculation and their frequencies (frq). The following four columns show the skin thicknesses on the bovine site of injection after 72 h of PPD-B inoculation and their frequencies. The following six columns show the skin thickness differences on the bovine sites versus avian sites of injection after 72 h of inoculations of both PPD-A and PPD-B (PPD-B minus PPD-A) and their subsequent frequencies. en_ZA
dc.description.abstract BACKGROUND : The prevalence of bovine tuberculosis (BTB) in dairy cattle in the three major milk producing regions of Eritrea was assessed by subjecting 15,354 dairy cattle, 50 % of Eritrea’s dairy cattle population, to the single intradermal comparative tuberculin test (SICTT). Skin test results were interpreted according to guidelines of the World Organization for Animal Health (OIE) with >4 mm as cutoff in skin thickness increase. In addition, we studied the relation between ‘physiological’ variables related to pregnancy and lactation, and the variable ‘region’ on the probability to be skin test positive. RESULTS : The BTB prevalences at animal and herd levels were: 21.5 % and 40.9 % in Maekel, 7.3 % and 10 % in Debub, and 0.2 % and 1.6 % in the Anseba region, respectively. Overall, in the regions included, prevalence was 11. 3 % (confidence interval (CI) 95 % CI, 11.29 – 11.31 %) and 17.3 % (95 % CI, 17.27–17.33 %), at animal and herd level, respectively. Considering positive herds only, the animal BTB prevalence was 36.8 %, 30.1 %, and 1.8 %, in Maekel, Debub and Anseba, respectively, and the overall animal prevalence within these herds was 32 %. In adult dairy cattle the probability of positive reactivity in the SICTT test was highest in pregnant animals as compared to the other categories. CONCLUSION : This study reports persistent prevalence of BTB as defined by positive SICTT in the dairy sector of Eritrea, especially in the regions of Maekel and Debub that are located in the central highlands of the country. To our understanding this is the first report that has encompassed all the major dairy farms in Eritrea and it will be instrumental in advocating future BTB control programs in the dairy sector. en_ZA
dc.description.department Veterinary Tropical Diseases en_ZA
dc.description.librarian am2016 en_ZA
dc.description.sponsorship NUFFIC and the Ministry of Agriculture, Eritrea. en_ZA
dc.description.uri en_ZA
dc.identifier.citation Ghebremariam, MK, Rutten, VPMG, Vernooij, JCM, Uqbazghi, K, Tesfaalem, T, Butsuamlak, T, Idris, AM, Nielen, M & Michel, AL 2016, 'Prevalence and risk factors of bovine tuberculosis in dairy cattle in Eritrea', BMC Veterinary Research, vol. 12, art. no. 80, pp. 1-7. en_ZA
dc.identifier.issn 1746-6148
dc.identifier.other 10.1186/s12917-016-0705-9
dc.language.iso en en_ZA
dc.publisher BioMed Central en_ZA
dc.rights © 2016 The Author(s). Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License. en_ZA
dc.subject Bovine tuberculosis en_ZA
dc.subject Prevalence en_ZA
dc.subject Comparative tuberculin test en_ZA
dc.subject Dairy cattle -- Diseases en_ZA
dc.subject Eritrea en_ZA
dc.subject Single intradermal comparative tuberculin test en_ZA
dc.subject BTB
dc.title Prevalence and risk factors of bovine tuberculosis in dairy cattle in Eritrea en_ZA
dc.type Article en_ZA

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