Influence of Broiler Age on the Apparent Metabolizable Energy of Cereal Grains Determined Using the Substitution Method

The present study investigated the influence of broiler age on the AMEn of wheat, sorghum, barley, and corn using the substitution method at six different ages (days 7, 14, 21, 28, 35, and 42). A corn-soybean meal basal diet was formulated and, the test diets were developed by replacing ( / ) 300 g/...

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Bibliographic Details
Published in:Animals (Basel) 2022-01, Vol.12 (2), p.183
Main Authors: Khalil, Mahmoud M, Abdollahi, Mohammad Reza, Zaefarian, Faegheh, Chrystal, Peter V, Ravindran, Velmurugu
Format: Article
Language:English
Subjects:
Age
apparent metabolizable energy
Barley
Birds
broilers
Corn
Diet
Energy
Feed formulation
Feed industry
Formulations
Grain
grains
Hatching
Ingredients
Nitrogen
Poultry
Proteins
Retention
Sorghum
Soybeans
Substitutes
substitution
Sustainable use
Vegetables
Wheat
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Summary:The present study investigated the influence of broiler age on the AMEn of wheat, sorghum, barley, and corn using the substitution method at six different ages (days 7, 14, 21, 28, 35, and 42). A corn-soybean meal basal diet was formulated and, the test diets were developed by replacing ( / ) 300 g/kg of the basal diet with wheat, sorghum, barley, or corn. Bird age influenced ( < 0.001) the AMEn of wheat and sorghum but had no effect ( > 0.05) on those of barley and corn. The AMEn of wheat increased with age ( < 0.001) from 12.53 MJ/kg DM in week 1 to 14.55 MJ/kg DM in week 2, then declined subsequently, but no linear or quadratic responses were observed. The AMEn of sorghum demonstrated a quadratic response ( < 0.05), increasing from 12.84 MJ/kg DM in week 1 to 13.95 MJ/kg DM in week 2, and then plateauing to week 6. Overall, the present results suggest that the effect of broiler age on the AMEn varies depending on the grain type. The current data suggest that the application of age-dependent AME or AMEn of wheat and sorghum will lead to more precise feed formulations.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani12020183