RAN – Rats des Anges Noirs  ☾

Statistics

Breeding statistics

Breeding activity period	2009–2011 (2 years, 1 month)

Declared litters	4 litters, 30 pups
⨽ internal (born in the rattery)	⨽ 3 litters, 28 pups
⨽ external (other contributed litters)	⨽ 1 litter, 2 pups

All rat records	30 rats
⨽ females	⨽ 11 females (36.7 %)
⨽ males	⨽ 19 males (63.3 %)

Litter statistics

Average mother age	75 days (2.5 months)
Average father age	N/A
Average litter size	7.5 pups per litter
Average sex ratio	1.727 (about 19 males for 11 females)

Lifespan statistics

Bred rats recorded as deceased	28 rats (100 % of recorded bred rats)
⨽ declared with known date	⨽ 13 rats (46.4 %)
⨽ presumed dead	⨽ 15 rats (53.6 %)

Average lifespan of bred rats	20.7 months (♀: 21.6 months – ♂: 20 months)
⨽ infant mortality excluded	⨽ 20.7 months (♀: 21.6 months – ♂: 20 months)
⨽ accidents excluded	⨽ 20.7 months (♀: 21.6 months – ♂: 20 months)

Oldest bred rat	RAN Pêche (deceased at 3 years, 1 month, 13 days)

Death causes statistics

Primary death causes by decreasing frequency

38.46 %	Unknown cause
30.77 %	Other
23.08 %	Old age, natural death (from 24 month old minimum)
7.69 %	Neurological (brain, spinal cords, nerves)

Secondary death causes by decreasing frequency

38.46 %	Undetermined cause (known date)
30.77 %	Undetermined tumor (affected organ unknown)
23.08 %	*Old age, natural death (from 24 month old minimum)
7.69 %	Stroke

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	05/09/2011	SOS Meï	Unknown	11
✓	07/07/2010	INC Nouka	Unknown	2
✓	31/01/2010	SOS Pandora	Unknown	7
✓	02/08/2009	INC Bella	Unknown	10

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	RAN28982F	RAN	Alya †		05/09/2011	2 mo	Undetermined cause	♀
✓	RAN16133M	RAN	Kawaïi †		02/08/2009	30 mo	Old age, natural death	♂
✓	RAN29067M	RAN	Etanin †		05/09/2011	18 mo	Undetermined cause	♂
✓	RAN28978M	RAN	Hydor †		05/09/2011	27 mo	Undetermined tumor	♂
✓	RAN16132F	RAN	Pêche †		02/08/2009	37 mo	Old age, natural death	♀
✓	RAN28981F	RAN	Atria †		05/09/2011	12 mo	Undetermined cause	♀
✓	RAN16028M	RAN	Echo †		02/08/2009	– ?? –	No information	♂
✓	RAN16131F	RAN	Plume †		02/08/2009	35 mo	Old age, natural death	♀
✓	RAN28983F	RAN	Khara †	Yuki	05/09/2011	– ?? –	No information	♀
✓	RAN29064M	RAN	Skat †	Scrat	05/09/2011	– ?? –	No information	♂