1. Aversive conditioning of periodic spontaneous erection adversely affects sexual behavior and semen in stallions;McDonnell;Anim Reprod Sci,2005
2. Bachelor and harem stallion behavior and endocrinology;McDonnell;Biol Reprod Monogr,1995
3. The equid ethogram: practical field guide to horse behavior;McDonnell,2003
4. How to select and fit a breeding dummy mount for stallions;McDonnell;AAEP Proceedings,2001
5. Conditioned suppression of sexual behavior in stallions and reversal with diazepam;McDonnell;Phyiol Behav,1985