Misalliance or Termination of Pregnancy in Bitches: Incidence, Risk Factors, Diagnosis and Treatment

Introduction

Mismating, sometimes known as termination of pregnancy, is an unintentional mating (misalliance) in which the health of the dam may be seriously jeopardized throughout pregnancy and parturition, or in which the animal's owners do not wish the pregnancy to proceed. Dogs go through an approximately nine-day oestrus, followed by a lengthy mating period that lasts for approximately one week, during which time conception can occur (Tsutsui T, 1989). As a result, there is a high chance of conception when misalliance happens.