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Semen Collection - Anatomy & Physiology (view source)
Revision as of 11:58, 21 July 2008
, 11:58, 21 July 2008no edit summary
* [[Semen Collection -Artificial Vagina - Anatomy & Physiology|Artificial Vagina]]
* [[Semen Collection -Artificial Vagina - Anatomy & Physiology|Artificial Vagina]]
* [[Semen Collection -Electroejaculation - Anatomy & Physiology|Electroejaculation]]
* [[Semen Collection -Electroejaculation - Anatomy & Physiology|Electroejaculation]]
= Artificial Vagina =
== Introduction ==
* Simulates the [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology|vaginal conditions]] of a female in oestrus.
* Generally consist of
** Outer casing of reinforced rubber
** Rubber liner that can be lubricated
* Temperature and pressure are controlled by water placed between the casing and liner.
* One end is attached to a funnel-like cone that is attached to a collection vessel, usually a non-breakable test tube.
* The desgin of the artificial vagina should accomplish the following:
** Provide a suitable environment for stimulation of the glans penis.
** Provide an environment that prevents damage to the penis.
** Provide an environment that maximizes sperm recovery and minimizes sperm insult.
== Advantages and Disadvantages of Using a Surrogate Stimulus ==
* Males need training to [[Reproductive_Behaviour_-_Copulatory_Behaviour_-_Anatomy_%26_Physiology#Mounting|mount]] a surrogate animal or 'dummy'.
* '''Advantages''' of a surrogate animal:
** Ease of cleaning
** Minimizes risk of injury
** Minimizes risk of disease transmission
** Surrogate animals do not require feed input, housing or labour for maintenance.
** Size can be easily adjusted to accommodate various males.
** Can be mobile, so location can be changed with ease. This avoids changing location of the male - which is more dangerous, especially with Bulls.
* '''Disadvantages''' of a surrogate animal:
** Changing the location of teasers is difficult.
** Requires previous training of the male
== Species Differences ==
* '''Stallion''':
** Leather outer casing equiped with a port to drain water.
** Collection vessel and protective covering
** Ideally, [[Reproductive_Behaviour_-_Copulatory_Behaviour_-_Anatomy_%26_Physiology#Ejaculation|ejaculation]] takes place in a collection cone so that most semen drains directly into the collection vessel.
** Surrogate stimulus used to collect semen from the Stallion is referred to as a ''''phantom''''.
*** Phantom has a biting belt to provide the stallion with a surface to bite during [[Reproductive_Behaviour_-_Copulatory_Behaviour_-_Anatomy_%26_Physiology#Mounting|mounting]] thus providing a means for natural behaviour.
* '''Bull''':
** Black casing
** Rubber liner
** Collection cone and collection vessel
** Water is placed between the casing and the liner.
** Proper temperature critical for successful [[Reproductive_Behaviour_-_Copulatory_Behaviour_-_Anatomy_%26_Physiology#Ejaculation|ejaculation]].
** Protective covering placed over the cone and collection vessel to prevent [[Reproductive_Technologies_-Artificial_Insemination_-_Anatomy_%26_Physiology#Seminal_Extenders|cold shock]] of the semen.
* '''Boar''':
** Bulb that can apply pressure to the artificial vagina.
*** High pressure is obligatory for stimulation of the glans penis and [[Reproductive_Behaviour_-_Copulatory_Behaviour_-_Anatomy_%26_Physiology#Ejaculation|ejaculation]] in the boar.
** Outer casing and liner
** Protective covering that houses the collection vessel.
* '''Ram and Buck''':
** Rubber casing with a valve through which water can be added or emptied.
** Rubber liner and collection vessel.
** Protective covering