In contrast, main effects of phytase addition on increasing feed intake ( P = 0.06) and BW gain ( P = 0.051) approached significance compared with birds fed diets without phytase inclusion.
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Effects of phytase supplementation and increased nutrient density on growth performance, carcass characteristics, and hypothalamic appetitive hormone expression and catecholamine concentrations in broilers from 1 to 43 days of age.
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