Difference between revisions of "Chipmunk Reproduction - Anatomy & Physiology"
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| + | {{toplink | ||
| + | |backcolour =EED2EE | ||
| + | |linkpage =Reproductive System - Anatomy & Physiology | ||
| + | |linktext =Reproductive System | ||
| + | |maplink = Reproductive System (Content Map) - Anatomy & Physiology | ||
| + | |pagetype =Anatomy | ||
| + | |sublink1=Reproductive System - Anatomy & Physiology#Small Domestic Mammals | ||
| + | |subtext1=SMALL DOMESTIC MAMMALS | ||
| + | }} | ||
| + | <br> | ||
== Male == | == Male == | ||
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=== Reproductive Tract === | === Reproductive Tract === | ||
| − | * [[ | + | * [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Anatomical_Types_of_Uteri|Bicornate uterus]] |
** Short uterine body | ** Short uterine body | ||
| − | ** Single [[ | + | ** Single [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology|cervix]] |
| Line 40: | Line 50: | ||
* Spontaneous ovulator. | * Spontaneous ovulator. | ||
* Breeding season is March-September. | * Breeding season is March-September. | ||
| − | * Length of [[ | + | * Length of [[Female_Reproductive_Tract_-Oestrous_Cycle_-_Anatomy_%26_Physiology|oestrous cycle]]: 14 days |
* '''Oestrus''' lasts three days. | * '''Oestrus''' lasts three days. | ||
* Advertises willingness to mate with persistent chipping noise on the second day of oestrus. | * Advertises willingness to mate with persistent chipping noise on the second day of oestrus. | ||
| Line 48: | Line 58: | ||
==== Gestation ==== | ==== Gestation ==== | ||
| − | * Gestation period 28-32 days. | + | * [[Reproductive System - Anatomy & Physiology#Gestation|Gestation]] period 28-32 days. |
==== Litter ==== | ==== Litter ==== | ||
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* 4 pairs of teats. | * 4 pairs of teats. | ||
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Revision as of 14:06, 3 September 2008
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Male
Penis
- Os penis lies within the tissue of the penis.
Testes
- Two testes in an external scrotum.
- Testes descend into the scrotum at the beginning of the mating season (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
Reproductive Tract
- Bicornate uterus
- Short uterine body
- Single cervix
Puberty and Sexual Maturity
- Sexually mature at 12 months.
Oestrous Cyclicity
- Seasonally Polyoestrous.
- Spontaneous ovulator.
- Breeding season is March-September.
- Length of oestrous cycle: 14 days
- Oestrus lasts three days.
- Advertises willingness to mate with persistent chipping noise on the second day of oestrus.
Gestation and Offspring
Gestation
- Gestation period 28-32 days.
Litter
- Litter size 2-6
- Altricial young
- Weaned at 6-7 weeks
Mammary Gland
- 4 pairs of teats.