[Use of xylanases in pig and poultry feeding]

additif aux aliments des animaux aditivos de piensos bile bilis broiler chickens cerdo cereales forrajeros digestibilidad digestibility engorde engraissement enzyme preparations fattening feed additives feed cereals feed conversion efficiency feed intake flora microbiana flore microbienne gain de poids ganancia de peso glicosidasas glycosidase glycosidases hidrolasas hydrolase hydrolases intestin intestines intestinos microbial flora nutrientes nutrients pentosane pentosanos pentosans piglets pollo de engorde porcelet porcin poulet de chair prise alimentaire (animaux) substance nutritive swine weight gain