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CANNULATION OF THE VAS DEFERENS IN THE BOAR

White, Larsen & Wales (1959) obtained semen from the epididymis of the ram by establishing a fistula into the vas deferens. This method enabled the authors to make observations on epididymal semen without contamination by other accessory gland secretions and allowed them to carry out comparative studies on normally ejaculated spermatozoa. The technique was subsequently improved by Ewy & Bielaski (1962). Bennett & Rowson (1963) developed a technique for cannulating the vas deferens in the bull, which was modified by Amann, Hokanson & Almquist (1963) and used in further studies on the output of spermatozoa in the ram by Bielaski & Ewy (1966), Tischner (1966, 1967) and Zetobriuch, oginowa & Manuiow (1966). This communication describes a technique for cannulation of the vas deferens in the boar.

Three Landrace boars were used. Their ages