Thirty-two healthy female rabbits having reproductive ability were selected and used for the experiment. They were divided into two groups, one of which was occluded by Silicone Rubber Based suppository in both oviducts, while the other was occluded only in the right side, and the left side was. left as a control. The drug plug, while, in the rabbit's oviduct, does not affect the weight, normal physiologycal activities (ingestion, excretion, action and state of vigour), oestrous cycle and ovulation of the ovary. The drug plug has a marked sterility effect when its lenght is over 2. 5 cm and it...
