[Some methodical problems in the determination of the true amino acid digestibility in swine]

Five castrated males bridge-fistulated at the end of the small intestine and fed a wheat-casein ration were used to study the influence of the microflora in the determination of the true amino acid digestibility applying the fecal analysis method. The experimental results allow to conclude that the influence of the microflora may be regarded as a very small one if certain parameters are taken into account in applying the fecal analysis methods.