| 英文描述 | Some stallions show normal sexual behavior but fail to ejaculate or have difficulty with intromission, coupling, or thrusting. They might mount dozens of times before ejaculating or before ceasing to attempt to mate. A related ejaculatory failure is dismount during or before ejaculation. In another form of ejaculatory failure the stallion fails to emit semen or emits accesory gland fluid void of spermatazoa despite appearing to have a normal ejaculation. Failure to ejaculate in dogs has been attributed to sexual immaturity, drug therapy, psychologic factors, idiopathic causes, or secondary neuropathy. |
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