A semiautomated procedure for rapid intrarectal instillation of fluids in the guinea pig

A penumatic operated semiautomatic system was developed for the intrarectal instillation of solutions in the guinea pig. The apparatus permitted one person to inject large numbers of animals at considerable savings in time compared to manually operated syringe techniques. The procedure was shown to be both rapid and safe for administering solutions intrarectally in the guinea pig.