engleski

Influence of the corn endosperm type on the in vitro starch digestion rate in the small intestine of broiler chickens

The objective of this study was to investigate differences among twelve commercial corn hybrids in the proportion of horny and floury endosperm and in vitro kinetics of starch digestion in the small intestine of broiler chicken. In vitro starch digestion procedure simulates the consecutive digestion processes in the different parts of the small intestine of the broiler. The overall content of horny endosperm was ranging from 58.27% to 85.16% among corn hybrids, and was higher in flint (75.41%) than in dent types (64.20%). The rapidly digestible starch was higher in dent (72.94%) than in flint (69.57%) corn. On contrary, resistant starch content was higher in flint (8.22%) than in dent (6.03%) corn. The rate of starch digestion for corn kernels could accurately predicted using kernel endosperm characteristics.

Corn endosperm type; in vitro starch digestion; small intestine; broiler

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