Difference between revisions of "Pre-copulatory Behaviour - Anatomy & Physiology"

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(New page: == Search for Sexual Partner == == Courtship == == Sexual Arousal == == Erection == == Penile Protrusion ==)
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== Search for Sexual Partner ==
 
== Search for Sexual Partner ==
  
{| style="width:75%; height:200px" border="1"
 
 
!'''Species'''
 
!'''Bull'''
 
!'''Stallion'''
 
!'''Ram'''
 
!'''Boar'''
 
!'''Dog'''
 
!'''Tom'''
 
|-
 
| '''Searching Behaviour'''
 
| Approach Sexually Active group of Females,Test for Lordosis,Flehmen
 
| Visual Search,Flehmen
 
| Sniffing & Licking of Ano-Genital Region,Nudging Ewe,Flehmen
 
| Moving among Females
 
| Roaming around Territory
 
| Prowling
 
|-
 
|}
 
 
----
 
 
== Tactile Stimulation ==
 
 
* Tactile stimuli from males is important in provoking sexual postures or standing postures by females.
 
** Stallion: Bites the neck or withers of the mare
 
** Tom: Bites the neck of the Queen
 
** Bull: Chin rests on the back of the cow just prior to mounting
 
 
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== [[Vomeronasal Organ]]==
 
 
* Vomeronasal organ is an '''accessory olfactory''' organ.
 
* Connected to two small openings in the anterior roof of the mouth just behind the upper [[Lips|lip]].
 
* Fluid-borne, less volatile chemicals enter the vomeronasal organ through the [[Alimentary_- Anatomy & Physiology#Oral_Cavity|oral cavity]] by means of nasopalatine (incisive) ducts.
 
 
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== Flehmen Response ==
 
 
[[Image:Flehmen Response.jpg|thumb|right|150px|<p>The Flehmen Response'</p><sup> Courtesy of Anna Schultz.</sup>]]
 
 
[[Image:Flehmen Response Horse.jpg|thumb|right|150px|<p>The Flehmen Response in the Horse</p><sup> Courtesy of Anna Schultz.</sup>]]
 
 
* Some [[Attractivity Behaviour - Anatomy & Physiology#Pheramones|pheromones]] are less volatile and need to be detected by the '''vomeronasal organ'''.
 
** Bull, ram, stallion, some extent the boar.
 
* Male closely approaches the source of [[Attractivity Behaviour - Anatomy & Physiology#Pheramones|pheromones]] and will nuzzle the female genital region.
 
* Flehmen behaviour is characterized by:
 
** Head elevation
 
** Curling of the upper [[Lips|lip]].
 
* Curling of the upper [[Lips|lip]] closes the '''nostrils''' and allows negative pressure to form in the '''nasopalatine duct'''.
 
* Flehmen behaviour allows less volatile pheromones to be examined by sensory neurons in the '''vomeronasal organ'''.
 
 
 
* As in the males, females will display flehmen to novel compounds such as fluids associated with the [[Placenta - Anatomy & Physiology|placenta]], newborn animals and other volatile materials.
 
* Frequently displayed by post-parturient females as they make identity discriminations between their own versus other's neonates.
 
 
 
 
 
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== Courtship ==
 
== Courtship ==
  
{| style="width:75%; height:200px" border="1"
 
 
!'''Species'''
 
!'''Bull'''
 
!'''Stallion'''
 
!'''Ram'''
 
!'''Boar'''
 
!'''Dog'''
 
!'''Tom'''
 
|-
 
| '''Courtship Behaviour'''
 
| Nuzzling & licking of perineal region, chin resting, testing for lordosis
 
| High Degree of Excitement
 
| Neck Outstretched,Head held Horizontally
 
| Nuzzling,Teeth Grinding,Foams at Mouth
 
| Sniffing,Licking of Vulva
 
| Biting Queen on Dorsal Neck
 
|-
 
|}
 
 
----
 
  
 
== Sexual Arousal ==
 
== Sexual Arousal ==
  
{| style="width:75%; height:200px" border="1"
 
 
!'''Species'''
 
!'''Bull'''
 
!'''Stallion'''
 
!'''Ram'''
 
!'''Boar'''
 
!'''Dog'''
 
!'''Tom'''
 
|-
 
| '''Consummation Behaviour'''
 
| Penile Protrusion,Dribbling of Seminal Fluid with few Spermatozoa,Erection,Attempted Mounts
 
| Penile Protrusion,No Preejaculatory Expulsion of Seminal Fluid
 
| Repeated Dorsal Elevation of Scrotum,Penile Protrusion,Dribbling of Seminal Fluid
 
| Penile Protrusion,Shallow Pelvic Thrusts, Attempted Mounting
 
| Erection,Protrusion of Penis,Mounting
 
| Mounting
 
|-
 
|}
 
 
----
 
  
== [[Erection - Anatomy & Physiology|Erection]] ==
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== Erection ==
  
  
[[Category:Reproductive Behaviour]]
+
== Penile Protrusion ==
[[Category:Bullet Points]]
 

Revision as of 14:48, 8 July 2008

Search for Sexual Partner

Courtship

Sexual Arousal

Erection

Penile Protrusion