Evaluation of liquid xylanase and phytase added after broiler feed pelletization.
2023
TOBIAS, G. P. | FABIANI, L. M. | PAGNUSSATT, H. | DAL SANTO, A. | LIMA. M. de | LEITE, F. | FACCHI, C. S. | ZACCARON, G. | HOINOSKI, G. | ANIECEVSKI, E. | ALVES, M. V. | GALLI, G. M. | STEFANI, L. M. | TAVERNARI, F. de C. | PETROLLI, T. G. | GÉSSICA PAULA TOBIAS, Universidade do Oeste de Santa Catarina/Xanxerê; LEONARDO MIGUEL FABIANI, Universidade do Oeste de Santa Catarina/Xanxerê; HELOÍSA PAGNUSSATT, Universidade do Oeste de Santa Catarina/Xanxerê; ALICIA DAL SANTO, Universidade do Oeste de Santa Catarina/Xanxerê; MARCOS DE LIMA, Universidade do Oeste de Santa Catarina/Xanxerê; FELIPE LEITE, Universidade do Oeste de Santa Catarina/Xanxerê; CAROLINE SCHMIDT FACCHI, Universidade do Oeste de Santa Catarina/Xanxerê; GUSTAVO ZACCARON, Universidade do Oeste de Santa Catarina/Xanxerê; GABRIEL HOINOSKI, Universidade do Oeste de Santa Catarina/Xanxerê; EDEMAR ANIECEVSKI, Universidade do Oeste de Santa Catarina/Xanxerê; MAURÍCIO VICENTE ALVES, Universidade do Oeste de Santa Catarina/Xanxerê; GABRIELA MIOTTO GALLI, Universidade Federal do Rio Grande do Sul; LENITA MOURA STEFANI, Universidade do Estado de Santa Catarina/Florianópolis; FERNANDO DE CASTRO TAVERNARI, CNPSA; TIAGO GOULART PETROLLI, Universidade do Oeste de Santa Catarina/Xanxerê.
Abstract: The objective of this study was to evaluate whether the addition of the enzymes phytase and xylanase, isolated or associated, in the liquid form after feed pelletization could improve energy utilization and digestibility of calcium and phosphorus by broiler chickens. Three experiments were performed using 120 birds each, divided into five treatments with eight replicates per group (n = 3), identified as: experiment 1 (xylanase: control, 1000 IU, 1500 IU, 2000 IU, 2500 IU), experiment 2 (phytase: control, 500 FTU, 1000 FTU, 1500 FTU, 2000 FTU), experiment 3 (xylanase + phytase: control, 3000 IU + 500 FTU, 3000 IU + 1000 FTU, 3000 IU + 1500 FTU, 3000 IU + 2000 FTU). Samples for digestibility tests were collected at 14 to 21 days of age. Therefore, the inclusion of liquid phytase and liquid phytase + xylanase after pelletization in broiler diets has become a relevant way to reduce the inclusion of inorganic P, which can reduce the cost of feed and P excretion in the environment. Furthermore, it is an interesting strategy to avoid enzyme denaturation in the pelleting process.
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