using histochemical procedures for the detection of lactate dehydrogenase ( ldh ) , succinate dehydrogenase ( sdh ) , and cytochrome c oxidase ( cytox ) , we investigated the levels of these enzymes of the energy metabolism in postimplantation rat embryos ( 9.5-12.5 days of gestation ) .
C0010760
cytochrome c oxidase
C0014272
energy metabolism