Carbohydrase inclusion in a corn-soybean diet improves broiler growth performance
Simões, Flávio Eduardo de Souza; Mello, Heloisa Helena de Carvalho; Stringhini, José Henrique; Leandro, Nadja Susana Mogyca; Mascarenhas, Alessandra Gimenez; Martins, Julyana Machado da Silva; Café, Marcos Barcellos.
Acta sci., Anim. sci;
45: e58738, 2023. tab
Artigo
em Inglês
| VETINDEX
| ID: biblio-1418493
Resumo
An experiment was conducted to evaluate the effect of diets with reduced energy level content, supplemented with carbohydrase, on broiler performance and the coefficient of metabolizability of nutrients. A total of 720 one-day-old male Cobb-500 chicks were distributed in a completely randomized design, with six treatments, eight repetitions of 15 birds each. The treatments were: (1) a positive control, basal diet to meet the requirements of broiler chickens (PC); (2) a negative control, basal diet with a reduction of 80 kcal kg-1 (NC); (3) NC + alphagalactosydase; (4) NC + xylanase; (5) NC + xylanase and alphagalactosydase, and (6) NC + enzymatic blend (alphagalactosydase, xylanase, pectinase and amylase). The nutrient digestibility was not improved by use of enzymes. At 7 days of age, the broilers which were fed diets supplemented with enzymes showed a lower feed intake (FI) and better feed conversion ratio (FCR) than the broilers fed on PC. Both the NC and enzymatic blend resulted in a worse performance of the broilers at 21, 35 and 42 days old. The use of alphagalactosydase and xylanase, isolated or in combination, in a corn-soybean meal-based diet is effective in improving the growth performance of broilers fed energy-reduced diets.(AU)
Biblioteca responsável:
BR68.1
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