The frequency of male reproductive behaviors exhibited in serving capacity tests. Rams were placed with two sexually receptive ewes and behaviors recorded for 20 min on 9 separate occasions. Data represent the mean ± SEM frequencies on the final 3 tests (n=6 rams per group). *, P < 0.05 control versus Flu ram. Abbreviations: GS, anogenital sniffs; kicks, foreleg kicks; Flehm, flehmen; Vocal, vocalizations; Mnts, mounts; Ejacs, ejaculations.