2 documents found, page 1 of 1
Xylo-oligosaccharides display a prebiotic activity when used to supplement whea...
Ribeiro, T.; Cardoso, V.; Ferreira, L. M. A.; Lordelo, M. M. S.; Coelho, E.; Moreira, A. S. P.; Domingues, M. R. M.; Coimbra, M. A.; Bedford, M. R.It is now well established that exogenous β-1,4-xylanases improve the nutritive value of wheat-based diets for poultry. Among other factors, the mechanism of action of exogenous enzymes may involve a microbial route resulting from the generation of prebiotic xylo-oligosaccharides (XOS) in the birds' gastro-intestinal (GI) tract. In a series of three experiments, the effect of XOS on the performance of broilers ...
Crop beta-glucanase activity limits the effectiveness of a recombinant cellulas...
Ponte, Patrícia I. P.; Lordelo, M. M. S.; Chaveiro-Soares, Manuel António; Crespo, J. P.; Crespo, D. G.; Prates, José António Mestre1. The supplementation of diets rich in soluble polysaccharides with microbial cellulases and hemicellulases decreases digesta viscosity and promotes broiler performance. 2. In contrast, recent experiments suggest that polysaccharidases are ineffective for improving the nutritive value of pasture biomass used by free-range broilers. However, the feasibility of using cellulases and hemicellulases to improve the ...