Difference between revisions of "Guinea Pig Reproduction - Anatomy & Physiology"
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− | + | <big><center>[[Reproductive System|'''BACK TO REPRODUCTIVE SYSTEM''']]</center></big> | |
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+ | <big><center>[[Reproductive_System#Small_Domestic_Mammals|'''BACK TO SMALL DOMESTIC MAMMALS''']]</center></big> | ||
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+ | = Male = | ||
− | + | * Known as the Boar. | |
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− | + | == Penis == | |
* Os penis | * Os penis | ||
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− | + | == Testes == | |
* Two testes | * Two testes | ||
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* Inguinal canal remains open throughout life. | * Inguinal canal remains open throughout life. | ||
* In mature, breeding boars the large testes lie in the scrotum either side of the genital opening. | * In mature, breeding boars the large testes lie in the scrotum either side of the genital opening. | ||
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+ | == Accessory Glands == | ||
− | + | * Several accessory glands | |
+ | ** '''Vesicular glands''': long and coiled | ||
+ | ** '''Prostate gland''' | ||
+ | ** '''Coagulating glands''' | ||
+ | ** '''Bulbourethral glands''' | ||
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− | + | == Mammary Gland == | |
* Pair of long inguinal nipples. | * Pair of long inguinal nipples. | ||
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− | + | ---- | |
− | + | = Female = | |
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− | + | * Known as the Sow | |
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− | + | == Reproductive Tract == | |
− | + | * [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Anatomical_Types_of_Uteri|Bicornate uterus]] | |
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− | * [[ | ||
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** Two uterine horns | ** Two uterine horns | ||
− | ** Single [[ | + | ** Single [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology|cervix]] |
− | ** Single [[ | + | ** Single [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology|vagina]] |
− | *** Membrane covers [[ | + | *** Membrane covers [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology|vaginal]] opening except at oestrus and during [[Reproductive_System#Parturition|parturition]]. |
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− | + | == Oestrous Cyclicity == | |
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− | + | * Polyoestrous | |
+ | * Spontaneous [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulator]] | ||
+ | * [[Female_Reproductive_Tract_-Oestrous_Cycle_-_Anatomy_%26_Physiology|Oestrous cycle]] length:15-16 days | ||
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− | + | == Gestation and Offspring == | |
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+ | * Long [[Reproductive_System#Gestation|gestation]] period: 59-72 days (depending on litter size) | ||
* Litter size: 1-6 | * Litter size: 1-6 | ||
** Precocious offspring | ** Precocious offspring | ||
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* No nest | * No nest | ||
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+ | == Mammary Gland == | ||
* Pair of long inguinal nipples. | * Pair of long inguinal nipples. | ||
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Revision as of 11:16, 21 July 2008
Male
- Known as the Boar.
Penis
- Os penis
- Caudoventral to the urethral opening is a pouch containing two horny styles (projections).
- Evert externally during erection of the penis.
Testes
- Two testes
- Inguinal canal remains open throughout life.
- In mature, breeding boars the large testes lie in the scrotum either side of the genital opening.
Accessory Glands
- Several accessory glands
- Vesicular glands: long and coiled
- Prostate gland
- Coagulating glands
- Bulbourethral glands
Mammary Gland
- Pair of long inguinal nipples.
Female
- Known as the Sow
Reproductive Tract
- Bicornate uterus
- Two uterine horns
- Single cervix
- Single vagina
- Membrane covers vaginal opening except at oestrus and during parturition.
Oestrous Cyclicity
- Polyoestrous
- Spontaneous ovulator
- Oestrous cycle length:15-16 days
Gestation and Offspring
- Long gestation period: 59-72 days (depending on litter size)
- Litter size: 1-6
- Precocious offspring
- Fully furred at birth
- Eyes open
- Able to eat solid food as well as suckle from the mother.
- Weaned at 3 weeks.
- Precocious offspring
- No nest
Mammary Gland
- Pair of long inguinal nipples.