Effect of broiler chicken age on ileal digestibility of corn germ meal
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Universidade Estadual de Maringá
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The objective of this research study was to eval uate the effect of age on the apparent ileal digestibility coefficient of nutrients, gross energy and di gestible energy of corn germ meal for broilers. Four digestibility trials were conducted using 280 broilers (Cobb 500) distributed in a completely randomized design with two treatments and five replications, re peated at four ages (10, 20, 30 and 40 days). The number of birds used in the tests was 10, 8, 6 and 4 bi rds per experimental unit at the different ages. The results were analyzed considering as dependent variable the apparent ileal digestibility of dry matter, crude protein, ether extract and gross energy, digestible dry matter, digestible crude protein, lipid and digestible energy; and ages (10, 20, 30 and 40 da ys) as the independent variable. Th e results for the variables showed that bird age exerted influence only in the ileal dige stibility of dry matter and gross energy. The digestible energy of corn germ meal increased by about 13 kcal kg -1 day -1 up to the evaluated age (40 days).
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