A study made on rat epididymidis (Vermouth et al.), showed that the transit of spermatozoa through the ductus was accompanied by a reduction of LDH activity from the caput to the corpus, and was not significant compared to the cauda epididymidis. The changes in LDH reported for the rat (Vermouth et al.), were suggestive of a reduced capacity of spermatozoa for glucose oxidation while spermatozoa matured along the luminal epididymidis transit.
The last observations and our results in Golden hamster epididymidis showed that LDH activity gradually decreased from the initial segment to the corpus epididymidis, and afterwards increased in the cauda epididymidis. These findings were in agreement with those reported for other species (Zinkham et al., 1964).