Performance responses of broilers and pigs fed diets with β-mannanase
Marcos Kipper, Inês Andretta, Vinícius Rodrigues de Quadros, Bruna Schroeder, Paula Gabriela da Silva Pires, Carolina Schell Franceschina, Felipe Hickmann, Ismael França
Abstract
This study was developed using meta-analysis to evaluate the effect of β-mannanase on both poultry and pig performance. Two databases were constructed using information from previous studies that evaluated the β-mannanase supplementation in diets for broilers (30 papers; 19,643 birds) and pigs (20 papers; 5,319 animals). The meta-analysis followed three sequential analyses: graphical, correlation, and variance-covariance. The effect of β-mannanase supplementation on performance considerably varied in both databases. Data analysis considering the study effect showed that β-mannanase supplementation did [...]