Bovine Tuberculosis in Slaughtered Cattle, Based on Post-Mortem Meat Inspection and Zeihl-Neelson Stain in Yobe State, Nigeria

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Abubakar U. B Ibrahim S Danbirni S Lawson L Abdulkadir I. A Kwaga J.P Abdulrazaq G. H Muhammad H

Abstract

Background and Aim: Tuberculosis is one of the most important infectious diseases of cattle in Nigeria and Africa. This study aimed at determining the prevalence of tuberculosis, based on post-mortem meat inspection and Zeihl-Neelson Stain in slaughtered cattle Yobe State.
Materials and Methods: The study was carried out from 10 major abattoirs/slaughter houses that supply meat to the public in Yobe State. Slaughtered cattle were subjected to details meat inspection/examination and epidemiological data such as sex, breed, age and location of lesion were observed from each carcass. These carcasses were examined visually for changes in colour, (pale yellow or gray) or morphology and then palpated before incision from the surrounding tissues. Samples were obtained and subjected to Zeihl-Neelsen staining to detect acid-fast bacilli from granulomatous tissues.
Results: A total of One Thousand Nine Hundred and Twenty Three (1923) cattle, consisting e Eight Hundred and Thirty Six (836) males and One Thousand and Eighty Seven (1087) females were Examined for gross TB lesions. The overall positives out of 1923 cattle examined were One Hundred and Sixty Seven (167) with a prevalence of (8.7%, 95%CI = 6.1-11.8). Based on sex 71(8.5%, 95%CI = 5.9-10.9) males were positives while 96(8.8%, 95%CI = 6.4-11.9) females were positives. The chi-squire (x2) test of significance based on sex shows the difference was not statistically significant at (P<0.05). This study found that breeds and age groups of cattle examined were statistically associated with prevalence of bovine tuberculosis lesions in slaughtered cattle (P<0.05).
Conclusions: In conclusion, this study highlight the importance of bovine tuberculosis and it public health implications in cattle in the study area in particular. Measures for control are also been suggested.

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