6 documents found, page 1 of 1
The effects of restricting enzyme supplementation in rye-based diets for broilers
Santos, C.I.; Ribeiro, T.; Ponte, P.I.P.; Fernandes, V.O.; Falcão-Cunha, L.; Freire, J.P.B.; Prates, J.A.M.; Ferreira, L.M.A.; Fontes, C.M.G.A.The purpose of the current study was to restrict enzyme addition in order to evaluate if supplementation throughout the broiler production cycle is required. Here we analyze the possibility of circumscribing xylanase supplementation in rye-based diets to the earliest periods of the life of the broiler. In the current experiment, 1-day-old chicks were divided into 5 treatments and fed a rye-based diet supplement...
The effects of restricting enzyme supplementation in wheat-based diets to broilers
Figueiredo, A.A.; Correia, B.A.; Ribeiro, T.; Ponte, P.I.P.; Falcão-Cunha, L.; Freire, J.P.B.; Prates, J.A.M.; Ferreira, L.M.A.; Fontes, C.M.G.A.The performance of broilers fed on xylanase supplemented diets for part or all of the production cycle was evaluated in two experiments. In a preliminary experiment, 1-day-old chicks were fed a wheat-based diet supplemented with a commercial xylanase for the entire duration of the experiment of 28 days, or during the last 21, 14, or 7 days of the trial. In experiment 2, the growth period was extended to 36 days...
A family 11 carbohydrate binding module (CBM) improves the efficacy of a recomb...
Lordelo, M.M.; Ribeiro, T.; Ponte, P.I.P.; Guerreiro, C.I.P.D.; Santos, H.M.; Falcão, L.; Freire, J.P.B.; Ferreira, L.M.A.; Prates, J.A.M.1. Exogenous microbial -1,3-1,4-glucanases and hemicellulases contribute to improving the nutritive value of cereals rich in soluble non-starch polysaccharides for poultry. 2. In general, plant cell wall hydrolases display a modular structure comprising a catalytic module linked to one or more non-catalytic carbohydrate-binding modules (CBMs). Based on primary structure similarity, CBMs have been classified in ...
A family 11 carbohydrate-binding module (CBM) improves the efficacy of a recomb...
Ribeiro, T.; Ponte, P.I.P.; Guerreiro, C.I.P.D.; Santos, H.M.; Falcão, L.; Freire, J.P.B.; Ferreira, L.M.A.; Prates, J.A.M.; Fontes, C.M.G.A.1. Exogenous microbial -1,3-1,4-glucanases and hemicellulases contribute to improving the nutritive value of cereals rich in soluble non-starch polysaccharides for poultry. 2. In general, plant cell wall hydrolases display a modular structure comprising a catalytic module linked to one or more non-catalytic carbohydrate-binding modules (CBMs). Based on primary structure similarity, CBMs have been classified in ...
Crop -glucanase activity limits the effectiveness of a recombinant cellulase us...
Lordelo, M.M.; Ponte, P.I.P.; Guerreiro, C.I.P.D.; Soares, M.C.; Mourão, J.L.; Crespo, J.P.; Crespo, D.G.; Prates, J.A.M.; Ferreira, L.M.A.1. 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 ...
Role of a family 11 carbohydrate-binding module in the function of a recombinan...
Lordelo, M.M.; Guerreiro, C.I.P.D.; Ribeiro, T.; Ponte, P.I.P.; Falcão, L.; Freire, J.P.B.; Ferreira, L.M.A.; Prates, J.A.M.; Fontes, C.M.G.A.Cellulases and xylanases display a modular architecture that comprises a catalytic module linked to one or more non-catalytic carbohydrate-binding modules (CBMs). CBMs have been classified into 52 different families, based on primary structure similarity. These non-catalytic modules mediate a prolonged and intimate contact of the enzyme with the target substrate eliciting efficient hydrolysis of the target poly...