Difference between revisions of "Avian Semen - Anatomy & Physiology"
Jump to navigation
Jump to search
m (→Introduction) |
|||
| (4 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
| + | <big><center>[[Reproductive System|'''BACK TO REPRODUCTIVE SYSTEM''']]</center></big> | ||
| + | |||
| + | <big><center>[[Reproductive_System#Exotics|'''BACK TO EXOTICS''']]</center></big> | ||
| + | |||
| + | <big><center>[[Exotics_-_Avian_Reproductive_Anatomy_and_Physiology_-_Anatomy_%26_Physiology|'''BACK TO AVIAN REPRODUCTIVE ANATOMY & PHYSIOLOGY''']]</center></big> | ||
| + | |||
| + | <big><center>[[Exotics_-_Reproduction_in_the_Male_Avian_-_Anatomy_%26_Physiology|'''BACK TO MALE AVIAN REPRODUCTIVE ANATOMY & PHYSIOLOGY''']]</center></big> | ||
| + | |||
| + | |||
| + | |||
| + | |||
== 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 11: | Line 23: | ||
** Seminal plasma composition can vary among species. | ** Seminal plasma composition can vary among species. | ||
| + | ---- | ||
== Sperm Storage == | == Sperm Storage == | ||
| Line 17: | Line 30: | ||
* 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 22: | Line 36: | ||
* 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 31: | Line 47: | ||
* Normal semen is white and milky. | * Normal semen is white and milky. | ||
| − | + | ---- | |
| − | |||
| − | |||
| − | |||
Revision as of 23:54, 25 August 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.