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Reproductive System Overview - Anatomy & Physiology (view source)

Revision as of 12:41, 4 September 2008

1,500 bytes removed ,  12:41, 4 September 2008
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== Small Domestic Mammals ==
 
== Small Domestic Mammals ==
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* [[Small Mammals -Reference Table of Reproductive Characteristics for Small Domestic Mammals- Anatomy & Physiology|Reference Table of Reproductive Characteristics for Small Domestic Mammals]]
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!'''Species'''
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!'''Rabbit'''
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!'''Chinchilla'''
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!'''Chipmunk'''
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!'''Gerbil'''
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!'''Guinea Pig'''
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!'''Golden Hamster'''
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!'''Mouse'''
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!'''Rat'''
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|-  
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| '''Reproductive Pattern'''
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| No True Oestrous Cycle
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| Seasonally Polyoestrous:Breeds November-March
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| Seasonally Polyoestrous:Breeds March-September
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| Polyoestrous
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| Polyoestrous
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| Polyoestrous
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| Polyoestrous
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| Polyoestrous
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|-
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| '''Length of Oestous Cycle'''
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| Every 4 days
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| 30-35 days
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| 14 days
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| 4-6 days
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| 15-16 days
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| Every 4 days
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| 4-5 days
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| 4-5 days
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|-
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| '''Type of Ovulation'''
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| Induced:Occurs Within 10 hours of Mating
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| Spontaneous
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| Spontaneous
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| Spontaneous
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| Spontaneous
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| Spontaneous
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| Spontaneous
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| Spontaneous
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|-
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| '''Gestation Period'''
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| 28-32 days
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| 111 days
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| 28-32 days
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| 24-26 days
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| 63 days
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| 15-18 days
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| 19-21 days
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| 20-22 days
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|-
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| '''Average Litter Size'''
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| 2-7
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| 2-3
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| 2-6
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| 3-6
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| 2-6
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| 3-7
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| 6-12
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| 6-12
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|-
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| '''Type of Young at Birth'''
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| Altricial
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| Precocial
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| Altricial
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| Altricial
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| Precocial
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| Altricial
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| Altricial
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| Altricial
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|-
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| '''Weaning Age'''
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| 4-6 weeks
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| 6-8 weeks
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| 6-7 weeks
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| 3-4 weeks
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| 3-4 weeks
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| 3-4 weeks
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| 18 days
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| 3 weeks
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|-
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| '''Age of Sexual Maturity'''
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| 5-8 months
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| 8 months
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| 12 months
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| 10-12 weeks
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| 6-10 weeks
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| 6-10 weeks
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| 3-4 weeks
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| 5-6 weeks
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|
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|}
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''Key Words''
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* '''Altricial''': newly born young are relatively immobile, have closed eyes, lack hair, and must be cared for by the adults. Altricial young are born helpless and require care for a comparatively long time.
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* '''Precocial''': young have open eyes, have hair, large brains and are immediately mobile and somewhat able to defend themselves against predators.
       
Lwilkie
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