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For oestrus detection in sheep while in flocks, limited exposure is given to rams with tied apron in front of their prepucial opening. For better and un-feared use of rams for oestrus detection and for effect of , ram exposure on postpartum reproductive characteristics of ewes, rams before the attainment of puberty and those sexually mature (adult rams) were operated for lateral deviation of prepuce and penis. The operations were successful, no post operative complications were recorded and these rams exhibited normal libido and were found efficient for oestrus detection in ewes.