The energetic cost of various behaviors in the laboratory mouse

Practical aspects of estimating energy components in rodents

“…More specifically, the basic assumption of TEE decomposition is that—for successive measurements taken in the same subject—the intensity of PA has a strong linear correlation with the AEE $\text{AEE}(t)=\text{CCA}(t)·\text{PA}(t)+e(t)$ with CCA the caloric cost of activity, which is the relative amount of energy needed for an activity bout, and e the residual energy expenditure, which is assumed to be a normally distributed random variable with zero mean. Since different types of activity can have different caloric costs (Meyer and Guillot, 1986; Heglund and Taylor, 1988), the CCA is time dependent. The CCA is an interesting variable in itself and has been suggested as a measure of the mechanical efficiency of an organism and the coupling between oxygen consumption and ATP production in muscles (Even and Nadkarni, 2012).…”

Practical aspects of estimating energy components in rodents

“…More specifically, the basic assumption of TEE decomposition is that—for successive measurements taken in the same subject—the intensity of PA has a strong linear correlation with the AEE $\text{AEE}(t)=\text{CCA}(t)·\text{PA}(t)+e(t)$ with CCA the caloric cost of activity, which is the relative amount of energy needed for an activity bout, and e the residual energy expenditure, which is assumed to be a normally distributed random variable with zero mean. Since different types of activity can have different caloric costs (Meyer and Guillot, 1986; Heglund and Taylor, 1988), the CCA is time dependent. The CCA is an interesting variable in itself and has been suggested as a measure of the mechanical efficiency of an organism and the coupling between oxygen consumption and ATP production in muscles (Even and Nadkarni, 2012).…”

Energy Cost of Wheel Running in House Mice: Implications for Coadaptation of Locomotion and Energy Budgets

“…The solid line describing a relation between running speed (on treadmill) and metabolic rate is an average of predictions from three regression lines for house mice (average body mass 28 g) from Taylor et al (1982; Table 1). Resting metabolic rate (RMR) is an average of values given by Taylor et al (1970) and Meyer and Guillot (1986), scaled for a 28-g mouse (assuming 0.7 exponent of the relation between metabolic rate and body mass). This value (23 kJ/d) is 4.5% higher than basal metabolic rate reported by Dohm (1994; also scaled for body mass of 28 g).…”

Energetic costs of feeding in 12 species of small-bodied primates

“…Understanding the role of energetic costs in the feeding system is important for relating selective pressures to morphology and behaviour and facilitates broader comparisons between biomechanical systems. While feeding energetics have been the subject of numerous studies [1][2][3][4][5][6][7][8][9][10][11][12][13][14], there are no comparative, empirical studies of the energetic costs of feeding in mammals. Here, we test how the energetic costs of feeding vary in relation to body mass and jawadductor muscle mass and with food properties in a comparative sample of 12 non-human primate species ranging in size from 0.08 to 4.2 kg.…”

Practical aspects of estimating energy components in rodents

“…More specifically, the basic assumption of TEE decomposition is that—for successive measurements taken in the same subject—the intensity of PA has a strong linear correlation with the AEE $\text{AEE}(t)=\text{CCA}(t)·\text{PA}(t)+e(t)$ with CCA the caloric cost of activity, which is the relative amount of energy needed for an activity bout, and e the residual energy expenditure, which is assumed to be a normally distributed random variable with zero mean. Since different types of activity can have different caloric costs (Meyer and Guillot, 1986; Heglund and Taylor, 1988), the CCA is time dependent. The CCA is an interesting variable in itself and has been suggested as a measure of the mechanical efficiency of an organism and the coupling between oxygen consumption and ATP production in muscles (Even and Nadkarni, 2012).…”

Energy Cost of Wheel Running in House Mice: Implications for Coadaptation of Locomotion and Energy Budgets

“…The solid line describing a relation between running speed (on treadmill) and metabolic rate is an average of predictions from three regression lines for house mice (average body mass 28 g) from Taylor et al (1982; Table 1). Resting metabolic rate (RMR) is an average of values given by Taylor et al (1970) and Meyer and Guillot (1986), scaled for a 28-g mouse (assuming 0.7 exponent of the relation between metabolic rate and body mass). This value (23 kJ/d) is 4.5% higher than basal metabolic rate reported by Dohm (1994; also scaled for body mass of 28 g).…”

Energetic costs of feeding in 12 species of small-bodied primates

“…Understanding the role of energetic costs in the feeding system is important for relating selective pressures to morphology and behaviour and facilitates broader comparisons between biomechanical systems. While feeding energetics have been the subject of numerous studies [1][2][3][4][5][6][7][8][9][10][11][12][13][14], there are no comparative, empirical studies of the energetic costs of feeding in mammals. Here, we test how the energetic costs of feeding vary in relation to body mass and jawadductor muscle mass and with food properties in a comparative sample of 12 non-human primate species ranging in size from 0.08 to 4.2 kg.…”

Practical aspects of estimating energy components in rodents

“…More specifically, the basic assumption of TEE decomposition is that—for successive measurements taken in the same subject—the intensity of PA has a strong linear correlation with the AEE $\text{AEE}(t)=\text{CCA}(t)·\text{PA}(t)+e(t)$ with CCA the caloric cost of activity, which is the relative amount of energy needed for an activity bout, and e the residual energy expenditure, which is assumed to be a normally distributed random variable with zero mean. Since different types of activity can have different caloric costs (Meyer and Guillot, 1986; Heglund and Taylor, 1988), the CCA is time dependent. The CCA is an interesting variable in itself and has been suggested as a measure of the mechanical efficiency of an organism and the coupling between oxygen consumption and ATP production in muscles (Even and Nadkarni, 2012).…”

Energy Cost of Wheel Running in House Mice: Implications for Coadaptation of Locomotion and Energy Budgets

“…The solid line describing a relation between running speed (on treadmill) and metabolic rate is an average of predictions from three regression lines for house mice (average body mass 28 g) from Taylor et al (1982; Table 1). Resting metabolic rate (RMR) is an average of values given by Taylor et al (1970) and Meyer and Guillot (1986), scaled for a 28-g mouse (assuming 0.7 exponent of the relation between metabolic rate and body mass). This value (23 kJ/d) is 4.5% higher than basal metabolic rate reported by Dohm (1994; also scaled for body mass of 28 g).…”

Energetic costs of feeding in 12 species of small-bodied primates

“…Understanding the role of energetic costs in the feeding system is important for relating selective pressures to morphology and behaviour and facilitates broader comparisons between biomechanical systems. While feeding energetics have been the subject of numerous studies [1][2][3][4][5][6][7][8][9][10][11][12][13][14], there are no comparative, empirical studies of the energetic costs of feeding in mammals. Here, we test how the energetic costs of feeding vary in relation to body mass and jawadductor muscle mass and with food properties in a comparative sample of 12 non-human primate species ranging in size from 0.08 to 4.2 kg.…”