between the testis and caput epididymis washed spermatozoa lost about 86 % ( bull ) , 60 % ( boar ) or 32 % ( rat ) in ache activity while between the caput and cauda epididymides , a further loss of 28 , 10 , and 27 % in the enzyme activity occurred in the respective species .
C0014533
epididymis
C0228024
cauda epididymides