Follicle diameter during proestrus (Fig. 2) did not differ
by treatment or response to GnRH-1 and no treatment by
response to GnRH-1 interaction was detected. The size of
the ovulatory follicle was similar between treatments but
greater (P < 0.05) in cows that responded to GnRH-1 than
those that failed to respond to GnRH-1 (Table 1).