Cross sectional study of bovine and avian tuberculosis in Bangladesh Livestock Reasearch Institute (BLRI) cattle farm

Md Emtiaj Alam,Md Siddiqur Rahman,Prokash Biswas,Md Ferdousur Rahman Khan,Md Bahanur Rahman,Md Mizanur Rahman,Mohammad Moniruzzaman,Sayra Tasnin Sharmy

doi:10.3329/ajmbr.v3i3.34525

Abstract

The present study was carried out to determine the prevalence of bovine and avian tuberculosis in cattle by using bovine and avian PPDs at Bangladesh Livestock Research Institute (BLRI) Cattle Farm, Savar, Dhaka. Cattle of different breeds, ages and sexes (n=183) were tested using bovine and avian PPDs. In caudal Fold Tuberculin (CFT) test, 16 (8.74%) cases were showed positive reaction among 183 sample. The overall percentages of positive reactors to Comparative cervical tuberculin (CCT) test of bovine and avian tuberculosis were 7.10% and 1.64% respectively. An insignificant variation (P>0.05) on prevalence of bovine tuberculosis on different age group of cattle was observed. Age group >7 years showed a higher prevalence (10.91%) than those of other age groups. In CCT test, 7.55% and 4.17% positive reactors were found in female and male cattle respectively. The association between different breeds of the animal was found significant (P<0.05). The local breed showed higher prevalence (9.77%) than those of Red Chittagong and cross breed. The highest percentage (10.45%) of positive reactors in CCT test was recorded in milking cows than in dry cows (2.32%), heifer (9.52%) and calf (5.77%) were observed. Mixed infection (bovine and avian type of tuberculosis) was recorded 1.64%.Asian J. Med. Biol. Res. September 2017, 3(3): 352-356

Highlights

Bovine tuberculosis is one of the most important zoonotic diseases (Thoen et al, 2006) of cattle and other farm animals, known to exist in all part of the world
Cattle were tested by Caudal Fold Tuberculin Test (CFT) which is a single Intradermal tuberculin test using bovine Purified Protein Derivatives at the caudal fold
Among the 183 Cattle, the positive responders were further subjected to Comparative Cervical Tuberculin Test (CCT) using both bovine and avian Purified Protein Derivatives

Summary

Introduction

Bovine tuberculosis is one of the most important zoonotic diseases (Thoen et al, 2006) of cattle and other farm animals, known to exist in all part of the world. It is an infectious disease caused by Mycobacterium bovis that has a broad host range (Wedlock et al, 2002). The prevalence is 6.8% in Zambia (Munyeme et al, 2009), 7.3% in Pakistan (Aranaz et al, 1996), 10% in Kenya (Kang'ethe et al, 2007), 19% in Ethiopia (Laval and Ameni, 2004), 26.4% in Eritrea (Omer et al, 2001) and 13.2% in Tanzania (Kazwala et al, 2001)

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Discussion

Conclusion