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

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

Objectives: To quantify the 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.