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Effect of a Live Reovirus Vaccine on Reproductive Performance of Broiler Breeder Hens and Development of Viral Tenosynovitis in Progeny

J. J. Giambrone, T. L. Hathcock and S. B. Lockaby
Avian Diseases
Vol. 35, No. 2 (Apr. - Jun., 1991), pp. 380-383
DOI: 10.2307/1591193
Stable URL: http://www.jstor.org/stable/1591193
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Effect of a Live Reovirus Vaccine on Reproductive Performance of Broiler Breeder Hens and Development of Viral Tenosynovitis in Progeny
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Abstract

A live commercial reovirus vaccine, Enterovax®, was administered to adult broiler breeder hens via the drinking water to determine its efficacy in stimulation of circulating antibody. This vaccine was compared with a commerical inactivated reovirus vaccine. Only the inactivated product resulted in increased antibody as measured by a commercial enzyme-linked immunosorbent assay. However, the live reovirus vaccine caused diarrhea in the hens and decreased eggshell quality, fertility, and hatchability. In addition, the live vaccine virus was vertically transmitted from hens to their progeny, resulting in increased embryonic mortality and viral tenosynovitis. /// Para determinar su eficacia en la estimulación de anticuerpos circulantes, se administró en el agua de bebida una vacuna comercial a virus vivo contra reovirus, Enterovax®, en gallinas reproductoras de engorde adultas. Esta vacuna fue comparada con otra vacuna comercial a base de virus inactivado. Sólo el producto inactivado generó un incremento de los anticuerpos cuyo nivel fue evaluado mediante la prueba de inmunoadsorción con enzimas asociadas. Sin embargo, la vacuna a virus vivo contra reovirus indujo el desarrollo de diarrea en las gallinas y también una disminución de la calidad del cascarón, de la fertilidad y del índice de nacimientos. Además, el virus de la vacuna a virus vivo fue transmitido verticalmente a la progenie, dando como resultado un incremento en la mortalidad embrionaria y tenosinovitis viral.

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