Aerobic and Anaerobic Scope for Activity in the Giant Toad, Bufo marinus
- 1 April 1980
- journal article
- research article
- Published by University of Chicago Press in Physiological Zoology
- Vol. 53 (2), 170-175
- https://doi.org/10.1086/physzool.53.2.30152580
Abstract
Maximum rates of oxygen consumption and lactate accumulation in hind limb muscles of Bufo marinus acclimated at 15 C or 25 C and LD 12:12 were determined in an experiment designed to test the relative effectiveness of electric shocks and mechanical rotation in eliciting burst-activity metabolism; no differences in oxygen consumption or in lactate production due to the method of stimulation were found. Mean max for toads at 15 C (mean mass = 359 g) was 0.60 ± 0.069 ml O₂ g⁻¹ h⁻¹ and for toads at 25 C (mean mass = 266 g), 1.44 ± 0.098 ml O₂ g⁻¹ h⁻¹. At 15 C toads had 0.36 ± 0.067 mg lactate g⁻¹ muscle and at 25 C, 0.69 ± 0.109 mg lactate g⁻¹ muscle following 3 min forced activity. At both 25 C and 15 C, oxygen consumption accounted for more than 85% of the total ATP produced during a 3-min bout of activity.This publication has 16 references indexed in Scilit:
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