Dynamic of heat production partitioning in rooster by indirect calorimetry.

Objective: The objective of this study was to describe a methodological procedure to quantify the heat production (HP) partitioning in basal metabolism or fasting heat production (FHP), heat production due to physical activity (HPA), and the thermic effect of feeding (TEF) in roosters.

Methods: Eighteen 54-wk-old Hy Line Brown roosters (2.916±0.