Unidad Académica de Fisiología, Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República (UdelaR), Ruta 8 km 18, 13000, Montevideo, Uruguay.
Unidad Académica de Reproducción Animal, Departamento de Producción Animal y Salud de los Sistemas Productivos, Facultad de Veterinaria, Universidad de la República (UdelaR), San José, 80100, Libertad, Uruguay.
Trop Anim Health Prod. 2023 Sep 23;55(5):318. doi: 10.1007/s11250-023-03724-y.
The aim of this study was to determine if ejaculation modifies the testicular and accessory sex glands' blood flow after ejaculation, and if those changes differ according to the process that leads to ejaculation. Twelve adult Corriedale rams were used and assigned at random to the four procedures that lead to ejaculation: (G1) electroejaculation; (G2) artificial vagina; (G3) transrectal ultrasound-guided massage of the accessory sex glands; (G4) natural mating. Hemodynamic characteristics evaluation of the male reproductive system was conducted immediately before and at 30 and 90 min after ejaculation. The internal iliac artery peak systolic velocity (PSV) decreased (P=0.01) and supratesticular artery PSV increased (P=0.042) 90 min after ejaculation in all groups. In conclusion, ejaculation modifies the reproductive system's blood flow, with slight variations depending on the studied ejaculation methods. Additionally, ejaculation altered the internal iliac and supratesticular arteries PSV, and the supratesticular artery end-diastolic velocity (EDV) in rams. The supratesticular artery PSV was the only studied variable that differed according to the procedure that triggered the ejaculation.
本研究旨在确定射精是否会改变射精后睾丸和附属生殖腺的血液流动，如果这些变化因导致射精的过程而异。使用了 12 只成年 Corriedale 公羊，并随机分配到导致射精的四个程序中：（G1）电刺激射精；（G2）人工阴道；（G3）经直肠超声引导的附属生殖腺按摩；（G4）自然交配。射精前和射精后 30 分钟和 90 分钟立即对男性生殖系统的血液动力学特征进行评估。所有组的髂内动脉收缩期峰值速度（PSV）在射精后 90 分钟均降低（P=0.01），而睾丸上动脉 PSV 增加（P=0.042）。总之，射精会改变生殖系统的血液流动，具体取决于所研究的射精方法的轻微差异。此外，射精改变了公羊的髂内动脉和睾丸上动脉 PSV 以及睾丸上动脉的舒张末期速度（EDV）。研究的唯一变量是导致射精的过程。
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