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Year 2017 - Volume 37, Number 6
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Occurrence of caprine arthritis encephalitis virus (CAEV) in dairy goats produced in an intensive confined system in the state of Minas Gerais, Brazil, 37(6):577-581
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ABSTRACT.- Nascimento-Penido P.M.P., Penido A.O., Galinari G.C.F, Heinemann M.B. & Leite R.C. 2017. [Occurrence of caprine arthritis encephalitis virus (CAEV) in dairy goats produced in an intensive confined system in the state of Minas Gerais, Brazil.] Ocorrência do vírus da artrite encefalite caprina (CAEV) em cabras leiteiras produzidas em sistema intensivo confinado no estado de Minas Gerais. Pesquisa Veterinária Brasileira 37(6):577-581. Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Cx. Postal 5675, Campus da Pampulha, Belo Horizonte, MG 31270-901, Brazil. ,E-mail: paulampn@gmail.com
The objective of the present study was to identify the occurrence of caprine arthritis encephalitis virus (CAEV) infection in dairy goat farms with intensive system in Minas Gerais State. Five properties were evaluated, totaling 1072 animals, being 48 males and 1024 females of different ages and breeds (Toggenburg, Saanen and Alpine). The diagnostic method used was the agar gel immunodiffusion (AGID) test, to detect antibodies anti-CAEV, which is the diagnostic test recommended by World Organization for Animal Health - OIE. The occurrence of anti-CAEV antibodies in the properties was 49.5% (531/1072), however varied according to the farm. The anti-CAEV antibodies detection varied according to the property: Farm 1 = 69.6% (156/224); farm 2 = 41.5% (47/113); farm 3 = 40.3% (63/156); farm 4 = 24.6% (18/73) and farm 5 = 48.8% (247/506). Of the total sampled males, 14.5% (7/48) were serologically positive. According to the results, there is a high occurrence rate of CAEV-seropositive animals in Minas Gerais, which has one of the largest Brazilian dairy goat herds. Therefore, it is essential to adopt strategies for CAE control, such as a routine of diagnostics tests in the properties and the separation of healthy from infected goats. The elimination of positive breeding goats in the properties is also a measure of control, because it has been shown that these are an important route of CAEV transmission in dairy farms. |
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