Abstract
Summary
Oxygen consumption and aerobic and anaerobic lactate production of testes from prepuberal and adult rats in the presence and in the absence of different substrates were studied. Oxygen consumption was greater at the prepuberal age. Aerobic lactate production was similar in both groups but anaerobic lactate production was greater in prepuberal animals. Only the testes from adult animals were able to oxidize exogenous substrates (glucose, pyruvate, or glutamate). The Pasteur effect was observed in the adult gland whereas the Crabtree effect appeared only in immature testes.
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