Difference between revisions of "Semen Collection - Anatomy & Physiology"

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* [[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

Revision as of 11:58, 21 July 2008

BACK TO REPRODUCTIVE SYSTEM
BACK TO REPRODUCTIVE TECHNOLOGIES




Artificial Vagina

Introduction

  • Simulates the 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 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, 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 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 ejaculation.
    • Protective covering placed over the cone and collection vessel to prevent 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 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
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