Maternal recognition of pregnancy in some domestic animals: A review

Introduction: Maternal Recognition of Pregnancy (MRP) is a physiological process whereby the conceptus signals its presence to the maternal organism and prolongs the lifespan of the corpus luteum. MRP is critical to homeostasis of pregnancy. Many cases of pregnancy losses have been attributed to the failure of MRP. One of such cases is early embryonic mortality, a leading cause of infertility in animals. The purpose of this review is to highlight the general mechanisms of MRP and the specie-specific differences in some domestic animals. Method: A search was conducted with the exploration and filtration of databases and repositories of Google Scholars, Scopus, PubMed and ResearchGate for scientific publications. Results: This article explains mechanisms of MRP in different domestic species of animals. Significance: The concept would provide a better insight in understanding a major aetiology to pregnancy losses, which has an implication on production and the agrarian economy.