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Efecto de una fitasa en la digestibilidad y actividad de tripsina y quimiotriposina en cerdos destetados

Authors: C. Romero-Núñez; M. Salas-Ramírez; A. C. García-Contreras; G. Mendoza-Martínez; F. X. Plata-Pérez; M. Cervantes-Ramírez; T. Viana-Castrillón; +1 Authors

Efecto de una fitasa en la digestibilidad y actividad de tripsina y quimiotriposina en cerdos destetados

Abstract

Se realizaron dos experimentos para evaluar el efecto de la adición de fitasa fungal (Aspergillus niger) en la actividad de tripsina y quimotripsina y digestibilidad de nutrientes en cerdos cruzados (Yorkshire x Landrace, 11,5 kg peso vivo). En ambos experimentos se empleó una dieta base formulada con sorgo y pasta de soya; los tratamientos (T) fueron los siguientes: T1, dieta base, y T2, base adicionada con 500 unidades de actividad fitásica (FTU) por kg de alimento. En el exp. 1 se utilizaron seis cerdos canulados en conducto pancreático, los cuales fueron adaptados a las dietas durante 5 d, previo a la colecta de muestras. La colección de jugo pancreático se hizo a intervalos de 15 min, de 08:00 a 20:00 h, durante 5 d. El alimento se ofreció dos veces al día (08:00 y 20:00 h). En el exp. 2 se utilizaron 20 cerdos alimentados con dietas similares del exp. 1 para estimar la digestibilidad total aparente de MS, MO, FDN, P, Ca, Mg, Zn y Fe. La fitasa no tuvo efectos en el peso y la longitud del páncreas, ni tampoco en la actividad de la tripsina y de la quimotripsina. La adición de fitasa incrementó la digestibilidad de la proteína (p<0,10) de 78,81 a 81,60% y la de la FDN (p<0,11) de 81,87 a 85,54%. No se observaron diferencias en la digestibilidad del Ca, P y Fe. La digestibilidad de Mg y Zn tampoco se afectó por la adición de fitasa. En conclusión, estos resultados indican que la adición de fitasa fungal a dietas para cerdos no afecta la actividad de tripsina y quimotripsina ni la digestibilidad en tubo digestivo total de minerales en cerdos.

Keywords

Piglets, Páncreas, Enzimas, Digestión, Digestion, Lechones, Veterinaria, Pancreas, Enzymes

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citations
The total number of citations received by all articles of the researcher of interest.
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
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