Reproductive performance of a cohort of Standardbred mares under a commercial breeding system.

Jasmine C. Tanner and Graham K. Barrell

Summary

Background: Despite being a large commercial breeding industry there is little published data on reproductive success of Standardbred mares.

Objectives: To quantify reproductive performance of Standardbred mares under artificial breeding systems in a commercial setting and determine the incidence of early embryonic and other pre-partum losses.

Study design: Retrospective cohort study

Methods: Data from four commercial farms were collected across four breeding years, and all mares were bred via artificial insemination. A total of 3,995 mares contributed 7,229 mare