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Journal Article

Decreased Egg Production in Commercial Laying Hens Fed Zearalenone- and Deoxynivalenol-Contaminated Grain Sorghum

S. L. Branton, J. W. Deaton, W. M. Hagler, Jr., William R. Maslin and J. M. Hardin
Avian Diseases
Vol. 33, No. 4 (Oct. - Dec., 1989), pp. 804-808
DOI: 10.2307/1591164
Stable URL: http://www.jstor.org/stable/1591164
Page Count: 5

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Topics: Grains, Egg production, Sorghum, Aflatoxins, Poults, Corn, Mycotoxins, Salivary glands, Toxicity, Laying hens
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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.
Decreased Egg Production in Commercial Laying Hens Fed Zearalenone- and Deoxynivalenol-Contaminated Grain Sorghum
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Abstract

In an experiment to determine the effect of corn vs. grain sorghum on performance of laying hens, egg production decreased significantly in the grain sorghum-fed hens in each of two trials starting 24 weeks after the trials began. Necropsy of chickens fed both diets revealed buccal ulceration at the ventral aspect of the oral cavity and squamous metaplasia of the esophageal glands and submaxillary salivary glands. Lesions were much more severe in the sorghum-fed birds than in the corn-fed birds. Analysis of the grain sorghum and corn revealed the presence of mycotoxins. Zearalenone and deoxynivalenol were present in the grain sorghum, and a lower amount of deoxynivalenol and a trace of aflatoxin B1 were found in the corn. Although mycotoxin levels were low, interaction between these mycotoxins and others may have decreased egg production. /// En un experimento para determinar el efecto del maíz vs. el sorgo sobre el rendimiento de ponedoras comerciales, se encontró en dos pruebas que la producción de huevos disminuyó significantemente en las gallinas alimentadas con el sorgo. Las diferencias en producción empezaron 24 semanas después del inicio de las pruebas. A la necropsia de las gallinas alimentadas con ambas dietas se encontró ulceración bucal en la parte ventral de la cavidad oral y metaplasia escamosa de las glándulas salivares esofágicas y submaxilares. Las lesiones fueron mucho más severas en las aves alimentadas con el sorgo que en aquellas alimentadas con el maíz. El análisis de los granos de sorgo y maíz mostró la presencia de micotoxinas. La zearalenona y el desoxinivalenol estaban presentes en los granos de sorgo. Cantidades más bajas de desoxinivalenol y trazas de aflatoxina B1 fueron encontradas en el maíz. Aunque los niveles de micotoxinas fueron bajos, la interacción entre estas micotoxinas y otras pueden haber causado la disminución en la producción de huevos.

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