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Se examinan las características fundamentales de la elaboración y desarrollo de un sistema nosológico desde la perspectiva ontológica. Aplicado a la historia reciente del Manual Diagnóstico y Estadístico de Trastornos Mentales (DSM-5), de la Asociación Psiquiátrica Americana, este análisis formula, luego de un breve esbozo histórico, los planteamientos de diversos pensadores e investigadores a lo largo de los dos últimos siglos. Temas de discusiones significativas han sido, entre otros, la definición de enfermedad mental, etiopatogenia, confiabilidad y validez, justificación y propósitos de eventuales cambios, aspectos éticos y tensiones persistentes entre ciencia y humanismo, teorías heurísticas en psiquiatría y la práctica clínica concreta. Se formula la esperanza de una deseable convergencia y resultados beneficiosos del proceso para pacientes, familiares, profesio...

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The aim of this study was to evaluate the effect of a natural anticoccidial based on saponins from Yucca schidigera and Trigonella foenum-graecumen in the control of coccidiosis in broilers. It was used 75 1-day-old chicks from the Cobb 500 line, randomly distributed in three treatments: DBSA (base diet without addition of anticoccidial), DBAN (base diet with addition of natural anticoccidial), DBQI (base diet with addition of chemical anticoccidial - ionophore) with five repetitions and five chicks per experimental unit. The birds were inoculated on day 14 with 15 times the recommended dose of the live vaccine (Coccivac-D) which contains Eimeria acervulina, E. maxima, E. mivati, E. tenella, E. necatrix, E. brunetti, E. hagani and E. praecox to induce the disease. The variables oocyst count per gram of faeces (ROpgh), intestinal lesions and various productive parameters were evaluated. T...

The aim of this study was to evaluate the effect of a natural anticoccidial based on saponins from Yucca schidigera and Trigonella foenum-graecumen in the control of coccidiosis in broilers. It was used 75 1-day-old chicks from the Cobb 500 line, randomly distributed in three treatments: DBSA (base diet without addition of anticoccidial), DBAN (base diet with addition of natural anticoccidial), DBQI (base diet with addition of chemical anticoccidial - ionophore) with five repetitions and five chicks per experimental unit. The birds were inoculated on day 14 with 15 times the recommended dose of the live vaccine (Coccivac-D) which contains Eimeria acervulina, E. maxima, E. mivati, E. tenella, E. necatrix, E. brunetti, E. hagani and E. praecox to induce the disease. The variables oocyst count per gram of faeces (ROpgh), intestinal lesions and various productive parameters were evaluated. T...

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