Studies on the biological assay for metabolizable energy in poultry feed ingredients effect of amount of feed intake and feeding frequency on metabolizable energy

Yamazaki, M.; Aizawa, T.

Japanese Journal of Zootechnical Science 57(5): 390-394

1986


Accession: 006513843

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Abstract
Two experiments were conducted with chicks and laying hens to study the effect of amount of feed intake and feeding frequency on metabolizable energy (ME) value. In experiment 1, a starter or a layer diet was used as a basal diet and test diets were made by replacing 40% of each basal diet with ground corn. The ME values were determined by feeding the diets at the amount of 100, 75 or 50% of ad libitum feeding. The results with chicks showed that the ME values of corn as well as the basal and test diets were not significantly affected by the amount of feed intake but the results with hens showed that the ME value of corn tended to decrease with decreasing feed intake though not significantly. In experiment 2, the test diets were made by replacing 40% of the basal diet with ground corn or soybean meal. Ninety g of the diets was separately fed to hens at one (9:00), twice (9:00, 13:00), or three times (9:00, 13:00, 17:00) a day. The results showed that the ME values of corn and soybean meal were not significantly affected by feeding frequency.