Apparent and true metabolizable energy of hulls rich and partly dehulled sunflower meal in balance experiments with roosters

Sashka Chobanova, Dimo Penkov

Abstract: With the help of standardized methods for balance experiments with poultry the apparent (AMЕn-o)
and the true (TMЕn-o) nitrogen corrected metabolizable energy of two batches of sunflower meal –
high cellulose (35% СP in DM) and partly dehulled (40% СP in DM) have been established. The
experiments were conducted separately with intact and caecoectomized roosters. The following
levels (J/g DM) have been established: high cellulose meal: (AMЕn-o): intact: 6654, caecoectomized:
4915, mean: 5785; (TMЕn-o): intact: 7911, caecoectomized: 6153, mean: 7032. For the partly dehulled
fodder, the results were: 7548, 7993, mean – 7771 and 8781, 9093, mean – 8937 J/g DM respectively.

Keywords: apparent metabolizable energy; roosters; sunflower meal; true metabolizable energy

Date published: 2022-04-26