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. 2001 Feb;42(2):116–120.

Effects of epidural lidocaine anesthesia on bulls during electroejaculation.

A J Falk 1, C L Waldner 1, B S Cotter 1, J Gudmundson 1, A D Barth 1
PMCID: PMC1476483  PMID: 11272454

Abstract

Two experiments were conducted to determine whether caudal epidural lidocaine anesthesia reduces a stress response to electroejaculation. In the 1st experiment, changes in cortisol and progesterone concentrations in serial blood samples were used to assess the stress response to restraint (control), transrectal massage, caudal epidural injection of saline, electroejaculation after caudal epidural injection of lidocaine, and electroejaculation without epidural lidocaine. In the 2nd experiment, behavioral responses were subjectively scored in bulls that were electroejaculated with or without caudal epidural lidocaine anesthesia. Cortisol and progesterone concentrations were significantly elevated after electroejaculation, whether or not bulls received caudal epidural anesthesia. Elevations in cortisol and progesterone were lower and fewer bulls vocalized during electroejaculation when given caudal epidural anesthesia; however, the differences were not significant.

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Selected References

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