Broilers fed 200 g or 300g had reduced feed conversion compared with broilers fed either the control diet or 100 g, and broilers fed 100g had reduced feed conversion compared with broilers fed the control diet (P < 0.05).As butyric acid inclusion
increased in the diet, BW gain increased linearly
(P = 0.025), and feed conversion decreased linearly
(P = 0.001)