COL – La Collection Aléatoire  ☾

Statistics

Breeding statistics

Breeding activity period	2006–2009 (3 years)

Declared litters	3 litters, 27 pups
⨽ internal (born in the rattery)	⨽ 3 litters, 27 pups
⨽ external (other contributed litters)	⨽ 0 litter, no pup

All rat records	27 rats
⨽ females	⨽ 11 females (40.7 %)
⨽ males	⨽ 16 males (59.3 %)

Litter statistics

Average mother age	194 days (6.4 months)
Average father age	535 days (17.5 months)
Average litter size	9 pups per litter
Average sex ratio	1.455 (about 16 males for 11 females)

Lifespan statistics

Bred rats recorded as deceased	27 rats (100 % of recorded bred rats)
⨽ declared with known date	⨽ 14 rats (51.9 %)
⨽ presumed dead	⨽ 13 rats (48.1 %)

Average lifespan of bred rats	20.2 months (♀: 21.6 months – ♂: 19 months)
⨽ infant mortality excluded	⨽ 20.2 months (♀: 21.6 months – ♂: 19 months)
⨽ accidents excluded	⨽ 23.3 months (♀: 25.8 months – ♂: 21.2 months)

Oldest bred rat	COL Arles (deceased at 2 years, 10 months, 9 days)

Death causes statistics

Primary death causes by decreasing frequency

21.43 %	Accidents, traumas, poisonings
21.43 %	Respiratory
21.43 %	Other
14.29 %	Neurological (brain, spinal cords, nerves)
14.29 %	Unknown cause
7.14 %	Old age, natural death (from 24 month old minimum)

Secondary death causes by decreasing frequency

14.29 %	Undetermined tumor (affected organ unknown)
14.29 %	Undetermined cause (known date)
14.29 %	Domestic accident (crush, door...)
14.29 %	*Respiratory
7.14 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
7.14 %	Bronchitis, pneumonia
7.14 %	Stroke
7.14 %	Undetermined infection or abscess
7.14 %	Epilepsy
7.14 %	*Old age, natural death (from 24 month old minimum)

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	14/09/2009	COL Tyrane	RAS Wolverine	8
✓	01/11/2008	RAF-BFC Delacroix	IND Barnabé de chez David	11
✓	23/08/2006	INC Moneypenny	INC Vatican	8

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	COL10917M	COL	Baron Samedi †		14/09/2009	– ?? –	No information	♂
✓	COL10919F	COL	Starbuck †	Shoah	14/09/2009	32 mo	Undetermined tumor	♀
✓	COL10543M	COL	Pruneau †	Spiderwick	01/11/2008	31 mo	Respiratory	♂
✓	COL10921M	COL	Quarante-Deux †	Cayenne	14/09/2009	18 mo	Respiratory	♂
✓	COL10534F	COL	Tyrane †		01/11/2008	24 mo	Undetermined infection or abscess	♀
✓	COL10532F	COL	Zaad †	Fable	01/11/2008	23 mo	Undetermined tumor	♀
✓	COL10915M	COL	Comte Zaroff †		14/09/2009	– ?? –	No information	♂
✓	COL10533F	COL	Dr Zoidberg †		01/11/2008	16 mo	Stroke	♀
✓	COL10918F	COL	Pandemie †		14/09/2009	– ?? –	No information	♀
✓	COL2217M	COL	Volpiccino †	Milan	23/08/2006	19 mo	Bronchitis, pneumonia	♂