Fig. 4

Effects of dietary supplementation with MA and MAP on the growth performance of broilers. A Illustration of pellet size. B Release test of blank pellets in vitro. C–F The 21–45 d cumulative feed intake (C), average daily feed intake (D), average daily gain (E) and F/G (F) of broilers. The values are presented as the mean ± SEM (n = 30). * and ** indicate differences of P ≤ 0.05 and P ≤ 0.01, respectively