Article Text

'Tail-stump' defect affecting the spermatozoa of two Charolais bulls
  1. G Williams
  1. Milk Marketing Board Cattle Breeding Centre, Welshpool, Powys.

Abstract

A specific spermatozoal defect was found in two apparently sterile Charolais bulls. Eighty to 90 per cent of the spermatozoa had a stump, or a droplet-like appendage, instead of a normal tail.

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