Transcervical Insemination
Dr. Lechten travelled to Wisconsin to the MiniTube facility where Dr. Verstegen was teaching a hands on lab about the newest procedure of semen implantation.
Transcervical insemination is an alternative method of inseminating frozen semen but for fresh semen, chilled semen, etc this method is widely recommended and generally successful. When frozen canine semen is placed into vaginal tract, the conception rate is lower then for transcervical insemination and surgical implant.
The bitch should have her rear end elevated for the artificial insemination procedure. This positioning facilitates the semen's deposition and flow to the cervical opening, a necessary for the semen being in position to be "pumped" into the uterus. The inseminator should digitally stoke the roof of the vaginal tract for 1-2 minutes after insemination. This technique simulates the tie of a natural breeding. The bitch's rear should be elevated for 2-3 minutes post-insemination.
The necessity to bypass the cervix and place the semen into the uterine lumen is beneficial in improving the conception rates in numerous situations. These include the use of frozen semen, fresh cooled semen, poor semen quality and in situations where examination of the bitch's uterus is desired.
Two methods are used to achieve the intrauterine deposition of semen, the transcervical insemination and the surgical insemination. These techniques each have their own usage guidelines and one does not replace the other as has been mistakenly represented to dog breeders.
The transcervical insemination (TCI) is performed with the bitch in a standing position. No sedation nor anesthesia is required. A fiber optic cystourethoscope is used vaginally to visualize the opening to the cervix. A flexible catheter is maneuvered through the cervix into the uterus. It is important that the breeder realize that the veterinarian is not visualizing the inside of the uterus and this technique does not allow for evaluation of the uterus.
The TCI procedure is visualized on a television monitor and does allow for examination of the vaginal tract, however. The semen is gently pushed through the catheter from a syringe. The veterinarian can visualize that the semen flows easily into the uterus and does not flow back into the vaginal tract.
The transcervical insemination does not replace the surgical insemination as it does not allow for uterine evaluation, but is a significant improvement over the vaginal method of artificial insemination. The TCI is recommended for any type semen, especially frozen and fresh-cooled and can significantly increase conception when poor quality semen and lowered sperm numbers are used.
The bitch should have her rear end elevated for the artificial insemination procedure. This positioning facilitates the semen's deposition and flow to the cervical opening, a necessary for the semen being in position to be "pumped" into the uterus. The inseminator should digitally stoke the roof of the vaginal tract for 1-2 minutes after insemination. This technique simulates the tie of a natural breeding. The bitch's rear should be elevated for 2-3 minutes post-insemination.
The necessity to bypass the cervix and place the semen into the uterine lumen is beneficial in improving the conception rates in numerous situations. These include the use of frozen semen, fresh cooled semen, poor semen quality and in situations where examination of the bitch's uterus is desired.
Two methods are used to achieve the intrauterine deposition of semen, the transcervical insemination and the surgical insemination. These techniques each have their own usage guidelines and one does not replace the other as has been mistakenly represented to dog breeders.
The transcervical insemination (TCI) is performed with the bitch in a standing position. No sedation nor anesthesia is required. A fiber optic cystourethoscope is used vaginally to visualize the opening to the cervix. A flexible catheter is maneuvered through the cervix into the uterus. It is important that the breeder realize that the veterinarian is not visualizing the inside of the uterus and this technique does not allow for evaluation of the uterus.
The TCI procedure is visualized on a television monitor and does allow for examination of the vaginal tract, however. The semen is gently pushed through the catheter from a syringe. The veterinarian can visualize that the semen flows easily into the uterus and does not flow back into the vaginal tract.
The transcervical insemination does not replace the surgical insemination as it does not allow for uterine evaluation, but is a significant improvement over the vaginal method of artificial insemination. The TCI is recommended for any type semen, especially frozen and fresh-cooled and can significantly increase conception when poor quality semen and lowered sperm numbers are used.
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