Difference between revisions of "Chipmunk Reproduction - Anatomy & Physiology"
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<big><center>[[Reproductive_System#Small_Domestic_Mammals|'''BACK TO SMALL DOMESTIC MAMMALS''']]</center></big> | <big><center>[[Reproductive_System#Small_Domestic_Mammals|'''BACK TO SMALL DOMESTIC MAMMALS''']]</center></big> | ||
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* Os penis lies within the tissue of the penis. | * Os penis lies within the tissue of the penis. | ||
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== Testes == | == Testes == | ||
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** 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. | ||
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== Puberty and Sexual Maturity == | == Puberty and Sexual Maturity == | ||
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* Sexually mature at 6-7 weeks. | * Sexually mature at 6-7 weeks. | ||
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== Mammary Gland == | == Mammary Gland == | ||
* Teats are absent. | * Teats are absent. | ||
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---- | ---- | ||
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| + | = FEMALE = | ||
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| + | == Reproductive Tract == | ||
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| + | * [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Anatomical_Types_of_Uteri|Bicornate uterus]] | ||
| + | ** Short uterine body | ||
| + | ** Single [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology|cervix]] | ||
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| + | == Puberty and Sexual Maturity == | ||
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| + | * Sexually mature at 12 months. | ||
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| + | == Oestrous Cyclicity == | ||
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| + | * Seasonally Polyoestrous. | ||
| + | * Spontaneous ovulator. | ||
| + | * Breeding season ia March-September. | ||
| + | * Length of [[Female_Reproductive_Tract_-Oestrous_Cycle_-_Anatomy_%26_Physiology|oestrous cycle]]: 14 days | ||
| + | * '''Oestrus''' lasts three days. | ||
| + | * Advertises willingness to mate with persistent chipping noise on the second day of oestrus. | ||
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| + | == Gestation and Offspring == | ||
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| + | * [[Reproductive_System#Gestation|Gestation]] period 28-32 days. | ||
| + | * Litter size 2-6 | ||
| + | * Altricial young | ||
| + | ** Weaned at 6-7 weeks | ||
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| + | |||
| + | == Mammary Gland == | ||
| + | |||
| + | * 4 pairs of teats. | ||
Revision as of 11:35, 21 July 2008
MALE
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
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 ia 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 period 28-32 days.
- Litter size 2-6
- Altricial young
- Weaned at 6-7 weeks
Mammary Gland
- 4 pairs of teats.