Figure

Fig. 1.2. Matching the energy in a feed (measured in a bomb calorimeter) with the energy required by the animal (measured in a calorimetry chamber). The ‘bomb’ calorimeter (right-hand box) measures the temperature rise in 1 L of water when the feed is burned (‘bombed’). This is the number of kilocalories contained in the feed. The animal’s energy production (left-hand box) can be measured in a calorimeter as heat produced directly, or indirectly from the rate of oxygen consumption, which is closely related to heat production.