Confounding of Brucellosis and Blue Tongue in Trans Humane Sheep Flock of Tamilnadu and other Herd Health Impact
Journal Title: Concepts of Dairy & Veterinary Sciences - Year 2018, Vol 2, Issue 1
Abstract
This present study was carried out to assess the prevalence of brucellosis and blue tongue in a trans humane sheep flock of Tamil Nadu, India. This Sheep flock had a history of inconsistent abortion, repeat breeder, poor fertility rate and higher prevalence of still birth. Serum samples were collected from sheep by random sampling. Serum samples were subjected to Rose Bengal Plate agglutination test (RBT) and ELISA. The risk factors like pregnancy, abortion, age and sex were correlated to the Brucella seropositivity. This study also assessed for the presence of Bluetongue in aborted sheep. It was found that ELISA could be the choice of test for testing of Brucellosis (with the percentage of 57.14). Clinically healthy rams were found to be with brucellosis seropositivity and posed infertility to ewes. It was observed that in trans humane flocks. Brucellosis and Blue tongue has a confounding phenomenon for ovine abortions. Brucellosis is a bacterial zoonosis caused by microorganisms belonging to Brucella, a genus of gram-negative bacteria that behave as facultative intracellular pathogens of ruminants, suidae, canids, and several wildlife species (OIE, 2008). B melitensis is the foremost etiological agent of brucellosis in sheep and goats. It is also the main agent responsible for human brucellosis known as Malta fever. Abortion and infertility are the predominant clinical signs in small ruminants. B. melitensis infection in sheep and goats has been neglected for long time, because small ruminant production was considered as a represents generally low-income activity practiced by landless farmers and marginalized communities in the developing countries. For these reasons the trans humane farming systems continue to have served disease challenges and pose major hurdles in, the control and eradication of many infections. The reasons for such high prevalence may also be result of socio cultural factors, which were compounded by the lack of adequate control measures being applied in small ruminant production systems as per the observations of WHO [1]. The Rose Bengal Plate Agglutinations Test (RBT) was developed originally for the diagnosis of bovine brucellosis and despite a scant information on its usage for Sheep and Goat is available, it is also recommended for the screening of B. melitensis infection in small ruminants [2].
Authors and Affiliations
S Kirshna Kumar, P Selvaraj V Maroudam, M Ranjith Kumar, M Raja, Y Krishna mohan Reddy
Keywords
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- EP ID EP592675
- DOI 10.32474/CDVS.2018.02.000126
- Views 80
- Downloads 0
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