Difference between revisions of "Avian Semen - Anatomy & Physiology"
Jump to navigation
Jump to search
m (→Introduction) |
m |
||
| Line 1: | Line 1: | ||
| − | + | {{toplink | |
| − | + | |backcolour =EED2EE | |
| − | + | |linkpage =Reproductive System - Anatomy & Physiology | |
| − | + | |linktext =Reproductive System | |
| − | + | |maplink = Reproductive System (Content Map) - Anatomy & Physiology | |
| − | + | |pagetype =Anatomy | |
| − | < | + | |sublink1=Exotics - Avian Reproductive Anatomy and Physiology - Anatomy & Physiology |
| − | + | |subtext1=AVIAN REPRODUCTIVE | |
| − | + | }} | |
| − | + | <br> | |
| − | |||
== Introduction== | == Introduction== | ||
Spermatogenesis and spermiation occur in much the same way as in mammals. For more information on these processes click here. | Spermatogenesis and spermiation occur in much the same way as in mammals. For more information on these processes click here. | ||
| − | |||
== Sperm Maturation== | == Sperm Maturation== | ||
| Line 23: | Line 21: | ||
** Seminal plasma composition can vary among species. | ** Seminal plasma composition can vary among species. | ||
| − | |||
== Sperm Storage == | == Sperm Storage == | ||
| Line 30: | Line 27: | ||
* In Passeriformes, semen is also stored in the seminal glomulus/receptacle (enlarged terminal end of the ductus deferens). | * In Passeriformes, semen is also stored in the seminal glomulus/receptacle (enlarged terminal end of the ductus deferens). | ||
| − | |||
== 'Transparent Fluid' == | == 'Transparent Fluid' == | ||
| Line 36: | Line 32: | ||
* Lymph-like fluid called 'transparent fluid' originates in the proctodeum and mixes with the semen during ejaculation. | * Lymph-like fluid called 'transparent fluid' originates in the proctodeum and mixes with the semen during ejaculation. | ||
** Function of transparent fluid is uncertain, but it contains blood clotting agents that are deleterious to sperm. | ** Function of transparent fluid is uncertain, but it contains blood clotting agents that are deleterious to sperm. | ||
| − | |||
| − | |||
== Semen == | == Semen == | ||
| Line 46: | Line 40: | ||
** Watery semen may indicate a high volume of 'transparent fluid'. | ** Watery semen may indicate a high volume of 'transparent fluid'. | ||
* Normal semen is white and milky. | * Normal semen is white and milky. | ||
| − | |||
| − | |||
Revision as of 13:56, 3 September 2008
|
Introduction
Spermatogenesis and spermiation occur in much the same way as in mammals. For more information on these processes click here.
Sperm Maturation
- Spermatozoa undergo maturation and become fully fertile in the ductus deferens.
- Time required for sperm to pass from the testes to the distal ductus deferens is ~1-4 days.
- Seminal plasma, formed in the effent ducts and ductules of the epididymis, accompanies spermatozoa.
- Seminal plasma composition can vary among species.
Sperm Storage
- In most birds, semen is stored in the ductus deferens.
- In Passeriformes, semen is also stored in the seminal glomulus/receptacle (enlarged terminal end of the ductus deferens).
'Transparent Fluid'
- Lymph-like fluid called 'transparent fluid' originates in the proctodeum and mixes with the semen during ejaculation.
- Function of transparent fluid is uncertain, but it contains blood clotting agents that are deleterious to sperm.
Semen
Semen can be collected for artificial insemination, to evaluate reproductive potential, to detect disease and to distinguish species or subspecies.
- Consistency of normal semen ranges from watery to heavy cream.
- Watery semen may indicate a high volume of 'transparent fluid'.
- Normal semen is white and milky.