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Ceramic Powder Made from Chicken Feces: Anti-Viral Effects against Avian Influenza Viruses

Kazuaki Takehara, Omoto Chinen, Alam Jahangir, Yuki Miyoshi, Yuichi Ueno, Shuhei Ueda, Yukako Takada, Sakchai Ruenphet, Ken-ichiro Mutoh, Masashi Okamura and Masayuki Nakamura
Avian Diseases
Vol. 53, No. 1 (Mar., 2009), pp. 34-38
Stable URL: http://www.jstor.org/stable/25599065
Page Count: 5
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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.
Ceramic Powder Made from Chicken Feces: Anti-Viral Effects against Avian Influenza Viruses
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Abstract

Ceramic powder prepared by sintering of chicken feces, when mixed with avian influenza viruses or an avian adenovirus, inactivated these organisms to below detection levels. When the ceramic powder was mixed with double-distilled water, the pH of the water rose to 10 but the aqueous phase did not show any antivirus activity. After 10 washings with water or five washings with 1M Tris-HCl (pH 8.0), the ceramic powder still retained antivirus activity. Antivirus activity was not affected by the presence of organic material (33% fetal calf serum). When chicks were fed food containing 5% ceramic powder, there was no difference in body weight between normal feeding and the ceramic-mixture feeding. The mode of action of the ceramic powder remains unknown, but it possibly works by adsorbing the virus. These results show that the ceramic powder has antiviral activities and is a potentially useful tool against avian influenza on poultry farms. /// Cuando se mezclaron los virus de la influenza aviar o adenovirus aviares con cerámicas en polvo preparadas mediante la sinterización de excretas fecales, dichos organismos se inactivaron por debajo de los niveles de detección. Cuando la cerámica en polvo fue mezclada con agua bidestilada, el pH del agua se incrementó a 10 pero la fase acuosa no mostró actividad antiviral. Después de diez lavados con agua o cinco lavados con Tris-HCl (pH 8.0), la cerámica conservó su actividad antiviral. La actividad antiviral no se afectó por la presencia de material orgánico (5% de suero de ternero). Cuando se alimentaron pollos con alimento que contenía la cerámica en polvo a un nivel del 33%, no se observó diferencia en el peso corporal entre los pollos alimentados con cerámica o sin la inclusión de la misma. El modo de acción de esta cerámica en polvo aún no se ha determinado, pero es posible que funcione mediante la adsorción del virus. Estos resultados muestran que la cerámica en polvo tiene actividades antivirales y puede ser un recurso potencialmente útil para controlar la influenza aviar en las granjas avícolas.

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