Author, Donkey, Bureaucrats, Administrators
53,803
edits
Changes
Artificial Insemination - Anatomy & Physiology (view source)
Revision as of 13:47, 5 July 2012
, 13:47, 5 July 2012no edit summary
[[Image:Artificial Insemination pig.jpg|thumb|right|150px|<p>Artificial Insemination of the Sow</p><sup>Courtesy of Proff.Watson ©RVC 2008</sup>]]
[[Image:Artificial Insemination pig.jpg|thumb|right|150px|<p>Artificial Insemination of the Sow</p><sup>Courtesy of Proff.Watson ©RVC 2008</sup>]]
== Semen Evaluation ==
== Semen Evaluation ==
* Determine [[Reproductive_Behaviour_-_Copulatory_Behaviour_- Anatomy & Physiology#Ejaculation|ejaculate]] volume.
* Determine [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|ejaculate]] volume.
* Estimate the percentage displaying progressive motility (linear motion) at 37◦C.
* Estimate the percentage displaying progressive motility (linear motion) at 37◦C.
* Determine sperm concentration.
* Determine sperm concentration.
== Seminal Extenders ==
== Seminal Extenders ==
* Extend the number of sperm in the original [[Reproductive_Behaviour_-_Copulatory_Behaviour_- Anatomy & Physiology#Ejaculation|ejaculate]].
* Extend the number of sperm in the original [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|ejaculate]].
* Extend the life of sperm.
* Extend the life of sperm.
* Must be '''isotonic'''
* Must be '''isotonic'''
* The ewe has a convex [[Cervix - Anatomy & Physiology|cervix]] with overlapping folds. Insemination is into the internal os of the [[Cervix - Anatomy & Physiology|cervix]].
* The ewe has a convex [[Cervix - Anatomy & Physiology|cervix]] with overlapping folds. Insemination is into the internal os of the [[Cervix - Anatomy & Physiology|cervix]].
* 0.25 ml or less is delivered by pipette.
* 0.25 ml or less is delivered by pipette.
* 70-75% conception rate is achieved with fresh semen, but only 5-15% with frozen semen due to the site of delivery being so far from the site of [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Fertilisation- Anatomy & Physiology|fertilization]].
* 70-75% conception rate is achieved with fresh semen, but only 5-15% with frozen semen due to the site of delivery being so far from the site of [[Fertilisation - Anatomy & Physiology|fertilization]].
* Minimum volume 25-50ml
* Minimum volume 25-50ml
* Normally 80ml is delivered through the [[Cervix - Anatomy & Physiology|cervix]] to reach the [[Female_Reproductive_Tract_-The_Uterus_- Anatomy & Physiology|uterus]] by gravitational flow.
* Normally 80ml is delivered through the [[Cervix - Anatomy & Physiology|cervix]] to reach the [[Uterus - Anatomy & Physiology|uterus]] by gravitational flow.
* Uses 2-3 billion sperm per insemination (60 billion in a normal ejaculate), so is relatively inefficient only giving ~20 inseminations per [[Reproductive_Behaviour_-_Copulatory_Behaviour_- Anatomy & Physiology#Ejaculation|ejaculate]].
* Uses 2-3 billion sperm per insemination (60 billion in a normal ejaculate), so is relatively inefficient only giving ~20 inseminations per [[Copulatory Behaviour - Anatomy & Physiology#Ejaculation|ejaculate]].
[[Category:Reproductive System]]
[[Category:Reproductive Technologies]]
[[Category:Bullet Points]]