Meta-análisis: efecto de la suplementación dietaria de selenio en la concentración tisular en cerdos


  • Jimmy Quisirumbay-Gaibor Doctorado en Ciencia Animal, Escuela de Posgrado, Universidad Nacional Agraria La Molina. Facultad de Medicina Veterinaria y Zootecnia, Universidad Central del Ecuador, Ciudadela Universitaria, Jerónimo Leiton s/n y Gatto Sobral. Quito-Ecuador.
  • Carlos Vílchez-Perales Facultad de Medicina Veterinaria y Zootecnia, Universidad Central del Ecuador, Ciudadela Universitaria, Jerónimo Leiton s/n y Gatto Sobral. Quito-Ecuador.


Palabras clave:

suplementación dietaria, concentración tisular, selenio, inorgánico, orgánico.


Se desarrolló un meta-análisis del efecto de la suplementación de selenio sobre la concentración tisular en cerdos. Se utilizaron 13 artículos científicos, que incluyeron 2114 animales. Bajo el modelo de efectos aleatorios se determinó tamaño de efecto, heterogeneidad y meta-regresiones. La suplementación genera una mayor concentración de selenio en riñón (2,51 ppm) y en menor cuantía en sangre (0,151 ppm); músculo (0,189 ppm) e hígado (0,564 ppm) presentan valores intermedios. Adicionalmente el selenio inorgánico ocasionó mayor concentración en riñón (2,74 ppm) y sangre (0,157 ppm), y la forma orgánica permitió concentrar más selenio en hígado (0,568 ppm) y músculo (0,237 ppm). Sin embargo, el efecto no fue consistente entre los estudios el cual es reflejado por valores altos en la prueba de inconsistencia (>72%). La concentración de selenio se ve afectado por el número de repeticiones, animales por unidad experimental, individuos muestreados por unidad experimental y por el nivel de selenio suplementado. De este trabajo se concluye que las fuentes orgánicas e inorgánicas de selenio favorecen la retención tisular del mismo; sin embargo, la concentración de este mineral se ve afectada significativamente por los factores anteriormente mencionados.

Biografía del autor/a

Jimmy Quisirumbay-Gaibor, Doctorado en Ciencia Animal, Escuela de Posgrado, Universidad Nacional Agraria La Molina. Facultad de Medicina Veterinaria y Zootecnia, Universidad Central del Ecuador, Ciudadela Universitaria, Jerónimo Leiton s/n y Gatto Sobral. Quito-Ecuador.

Carlos Vílchez-Perales, Facultad de Medicina Veterinaria y Zootecnia, Universidad Central del Ecuador, Ciudadela Universitaria, Jerónimo Leiton s/n y Gatto Sobral. Quito-Ecuador.


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Received February 25, 2019.

Accepted September 9, 2019.

Corresponding author: (J. Quisirumbay-Gaibor).




Cómo citar

Quisirumbay-Gaibor, J., & Vílchez-Perales, C. (2019). Meta-análisis: efecto de la suplementación dietaria de selenio en la concentración tisular en cerdos. Scientia Agropecuaria, 10(3), 369-375.



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