A continuous sampling model of the seminal vesicle fluid in rat

A continuous sampling model of the fluid excreted from the unilateral seminal vesicle was devised in the rat. Each 12 hr change in the volume was measured in 14 sexually mature male rats by use of tubing. If we assume the excretion of a small volume (less than 4 microliters) as the resting level, 3 of 14 rats showed only the resting level. The excretion of a large volume was sometimes observed in the 11 other rats both in daytime and nighttime. This model would be promising for investigations of the seminal vesicles from new aspects.