the efferent ductules constituted the largest proportion of the tubular components of the organs in the three birds ( 35.3 % for the chicken , 56 % for the quail and 61.9 % for the guinea-fowl ) , while the ductus epididymidis formed only 7.6 % , 2.4 % and 1.8 % of the total epididymal volume in the domestic fowl , quail and guinea-fowl respectively .
C0458632
ductus epididymidis
C0014533
epididymal