Estrus based on pedometer activity was defined as a 1.5-fold increase in the number of steps over the average number of steps for the previous 2 weeks. The duration of estrus was defined as the period of increased step rate
Estrus based on pedometer activity was defined as a 1.5-fold increase in the number ofsteps over the average number of steps for the previous2 weeks. The duration of estrus was defined as the periodof increased step rate