Which factor is multiplied by RER to estimate daily energy needs for maintenance?

Which factor is multiplied by RER to estimate daily energy needs for maintenance?

• A. 1.0
• B. 2.0
• C. 0.5
• D. 0.25

Answer: (A)

The amount of energy a healthy adult animal needs for daily maintenance is obtained by multiplying its resting energy requirement by a factor that reflects activity and life stage. For a typical maintenance scenario with normal activity, that factor is 1.0, so daily maintenance energy equals the resting energy requirement (RER). The other options would represent higher energy needs (2.0 for more activity or growth) or lower energy needs (0.5 or 0.25 for reduced activity or weight loss), which are not appropriate for standard maintenance. So the correct multiplier is 1.0.

The amount of energy a healthy adult animal needs for daily maintenance is obtained by multiplying its resting energy requirement by a factor that reflects activity and life stage. For a typical maintenance scenario with normal activity, that factor is 1.0, so daily maintenance energy equals the resting energy requirement (RER). The other options would represent higher energy needs (2.0 for more activity or growth) or lower energy needs (0.5 or 0.25 for reduced activity or weight loss), which are not appropriate for standard maintenance. So the correct multiplier is 1.0.