Relationship between the sexual performance of bulls and their behavioral responses to non-sexual novel stimuli.

Individual differences in the sexual reaction times and ejaculation rates (serving capacity) of 14 beef bulls were compared with their behavioral responses to a novel arena and to novel non-sexual visual and auditory stimuli. Correlation coefficients for ejaculation rates were consistently low and nonsignificant, but bulls that were most inhibited by the novel environment/stimuli exhibited the longest latencies for first mount and ejaculation. The emotional reactivity of bulls may be more closely related to their sexual inhibitions than to measures of reproductive success.
(Copyright © 1990. Published by Elsevier B.V.)