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Gerbil Reproduction - Anatomy & Physiology (view source)

Revision as of 11:54, 21 July 2008

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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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* [[Gerbil-Male- Anatomy & Physiology|Male]]
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* [[Gerbil -Female- Anatomy & Physiology|Female]]
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* 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|Bicornuate uterus]]
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* Two channels of the [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology|cervix]] separated almost to the single entrance into the [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology|vagina]].
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== Puberty and Sexual Maturity ==
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* Sexual maturity is at ~9-12 weeks.
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== Oestrous Cyclicity ==
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* Polyoestrous
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* [[Female_Reproductive_Tract_-Oestrous_Cycle_-_Anatomy_%26_Physiology|Oestrous cycle]] length: 4-6 days
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* Post-parturient oestrus
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* Spontaneous [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulator]].
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== Breeding Characteristics ==
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* Monogamous (in contrast to [[Small_Mammals_-Rat-_Anatomy_%26_Physiology|rats]] and [[Small_Mammals_-Mouse-_Anatomy_%26_Physiology|mice]]).
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* Mating usually occurs in the evening.
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* Copulation plug is small and lies deep in the [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology|vagina]], so cannot easily be detected.
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== Gestation and Offspring==
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* [[Reproductive_System#Gestation|Gestation]] period is 22-26 days.
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* Mean litter size is 4-5.
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* May produce a litter every 30-40 days and can produce a total of 10 litters.
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* Maximum breeding age is 20 months, but usually the time between the first and last litter is ~1 year.
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* Pseudopregnancy may occur.
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* Altricial offspring.
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** Hairless, blind and virtually helpless.
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** Ears open at 5 days.
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** Eyes open at 16-17 days.
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** Cannibalisation/abandoment is rare.
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== Mammary Gland ==
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* 4 pairs of teats.
Lwilkie
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