According to a famous article by Max Kleiber*, the scaling of the metabolic rate

Question

According to a famous article by Max Kleiber*, the scaling of the metabolic rate or energy consumption for mammals P_metab (measured in kcal/day) with the body mass M_b (measured in kilograms) is O_metab = 70 M_b 0.75. *M. Klieber, "Body size and metabolism," Hilgardia 6,315(1932) What is the specific metabolic rate, i.e. the metabolic rate per kilogram of body mass for the following animals? a mouse whose mass is 30 g Give your answer to three significant figures. What is the specific metabolic rate, i.e. the metabolic rate per kilogram of body mass for the following animals? a cow whose mass is 300 kg Give your answer to three significant figures.

Explanation / Answer

part A) specific metabolic rate= Pmetab/m

= 70*0.030^0.75 /0.030

= 168 kcal/day-kg

part B) specific metabolic rate= Pmetab/m

= 70*300^0.75 /300

= 16. 8 kcal/day-kg

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