Fertility in Gyr Cows (Bos indicus) with Fixed Time Artificial Insemination and Visual Estrus Detection Using a Classification Table

Figure 1

Treatment protocols and characteristics of cow groups. SP—sponge placed, SR—sponge removal, After SR—after sponge removal, FTAI—fixed time artificial insemination, AI—artificial insemination, PPA—postpartum anestrus, CN—calving number, BCIA—body condition at AI time, and GD—gestation diagnosis. *—significant differences (), Lutalyse and Folligon (pregnant mare serum gonadotropin (eCG)) and VO—visual observation.