Difference between revisions of "Chipmunk Reproduction - Anatomy & Physiology"
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| − | + | <big><center>[[Reproductive System|'''BACK TO REPRODUCTIVE SYSTEM''']]</center></big> | |
| − | + | <big><center>[[Reproductive_System#Small_Domestic_Mammals|'''BACK TO SMALL DOMESTIC MAMMALS''']]</center></big> | |
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| + | * [[Chipmunk -Male- Anatomy & Physiology|Male]] | ||
| + | * [[Chipmunk -Female- Anatomy & Physiology|Female]] | ||
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| + | == Penis == | ||
* Os penis lies within the tissue of the penis. | * Os penis lies within the tissue of the penis. | ||
| + | ---- | ||
| − | + | == Testes == | |
* Two testes in an external scrotum. | * Two testes in an external scrotum. | ||
| − | * Testes descend into the scrotum | + | * Testes descend into the scrotum in January and begin spermatogenesis. |
* Open inguinal canals throughout life. | * Open inguinal canals throughout life. | ||
** Allows testes to shrink and return to the abdomen in the non-breeding season. | ** Allows testes to shrink and return to the abdomen in the non-breeding season. | ||
| − | + | ---- | |
| + | |||
| + | == Puberty and Sexual Maturity == | ||
* Sexually mature at 6-7 weeks. | * Sexually mature at 6-7 weeks. | ||
| + | ---- | ||
| − | + | == Mammary Gland == | |
* Teats are absent. | * Teats are absent. | ||
| + | ---- | ||
| + | |||
== Female == | == Female == | ||
| − | + | * [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Anatomical_Types_of_Uteri|Bicornate uterus]] | |
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| − | * [[ | ||
** Short uterine body | ** Short uterine body | ||
| − | ** Single [[ | + | ** Single [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology|cervix]] |
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| − | * | + | * '''Seasonally polyoestrous'''* Spontaneous ovulators |
| + | * Breeding season March-September | ||
| + | * '''Oestrus''' lasts three days | ||
| + | * Advertises willingness to mate with persistent chipping noise on the second day. | ||
| − | + | * 4 pairs of teats | |
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Revision as of 13:18, 18 July 2008
Penis
- Os penis lies within the tissue of the penis.
Testes
- Two testes in an external scrotum.
- Testes descend into the scrotum in January and begin spermatogenesis.
- Open inguinal canals throughout life.
- Allows testes to shrink and return to the abdomen in the non-breeding season.
Puberty and Sexual Maturity
- Sexually mature at 6-7 weeks.
Mammary Gland
- Teats are absent.
Female
- Bicornate uterus
- Short uterine body
- Single cervix
- Seasonally polyoestrous* Spontaneous ovulators
- Breeding season March-September
- Oestrus lasts three days
- Advertises willingness to mate with persistent chipping noise on the second day.
- 4 pairs of teats