The effects of supplementary bacterial phytase on dietary energy and total tract amino acid digestibility when fed to young chickensReport as inadecuate




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Abstract : Abstract 1. Four diets were offered to broiler chickens from 7 to 17 days of age; these included a phosphorus-adequate positive control PC 4.7 g-kg available P, a sub-optimal P negative control NC, 2.5 g-kg available P with 500 and 12500 FTU-kg and without phytase. Dietary apparent metabolisable energy AME, dietary net energy for production NEp, the efficiency of AME retention Kre, heat production and total tract amino acid digestibility coefficients were determined. The determination of NEp involved a comparative slaughter technique in which growing chickens were fed the experimental diets ad libitum. 2. Feed intake, weight gain and feed conversion efficiency increased P



Author: Vasil Pirgozliev -

Source: https://hal.archives-ouvertes.fr/



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