Performance of laying hens as affected by the supplementation of a barley-based diet with a crude enzyme preparation from Trichoderma viridae

agua aliment pour animaux barley besoin en eau beta-glucan cebada chickens consommation consumo consumption eau enzimas enzyme enzymes feeds females femelle glucane glucano glucans hembra necesidades de agua orge piensos pollo poulet suplementos supplements trichoderma viride water water requirements