PEX – Raterie Les Ptits Explorateurs  ☾

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Statistics

Breeding statistics

Breeding activity period	2009–2021 (12 years, 3 months)

Declared litters	9 litters, 49 pups
⨽ internal (born in the rattery)	⨽ 6 litters, 36 pups
⨽ external (other contributed litters)	⨽ 3 litters, 13 pups

All rat records	49 rats
⨽ females	⨽ 26 females (53.1 %)
⨽ males	⨽ 23 males (46.9 %)

Litter statistics

Average mother age	229 days (7.5 months)
Average father age	520 days (17.1 months)
Average litter size	5.4 pups per litter
Average sex ratio	0.885 (about 9 females for 8 males)

Lifespan statistics

Bred rats recorded as deceased	34 rats (94.4 % of recorded bred rats)
⨽ declared with known date	⨽ 30 rats (88.2 %)
⨽ presumed dead	⨽ 4 rats (11.8 %)

Average lifespan of bred rats	26.1 months (♀: 26.9 months – ♂: 25 months)
⨽ infant mortality excluded	⨽ 26.1 months (♀: 26.9 months – ♂: 25 months)
⨽ accidents excluded	⨽ 26.4 months (♀: 27.3 months – ♂: 25.3 months)

Oldest bred rat	PEX-PVC Sexy Hairless (deceased at 3 years, 1 month, 12 days)

Death causes statistics

Primary death causes by decreasing frequency

33.33 %	Other
20 %	Unknown cause
16.67 %	Old age, natural death (from 24 month old minimum)
10 %	Accidents, traumas, poisonings
10 %	Neurological (brain, spinal cords, nerves)
6.67 %	Respiratory
3.33 %	Cardiovascular

Secondary death causes by decreasing frequency

20 %	Undetermined cause (known date)
16.67 %	*Old age, natural death (from 24 month old minimum)
13.33 %	Undetermined tumor (affected organ unknown)
10 %	Undetermined infection or abscess
10 %	Stroke
6.67 %	*Other
3.33 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
3.33 %	Other heart or vascular problem
3.33 %	Domestic accident (crush, door...)
3.33 %	Bronchitis, pneumonia
3.33 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
3.33 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
3.33 %	*Respiratory

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	26/12/2021	LPM CRAKOTTE	LPM Kouing Amann	4
✓	08/06/2021	LPM-PEX Citrouille	LPM Philo	2
✓	12/11/2020	PEX Soa	FDC-LPM Canabïs	5
✓	18/02/2020	FDC-LPM Halva	LPM-FDC London	3
✓	20/01/2016	PVC W'oompie	PVC Pyro	13
✓	12/11/2015	CRV-PVC Cool Dawn	PEX-PVC Absolem	2
✓	03/04/2014	PEX-LPM Sarabi	IND Hypso	7
✓	30/08/2013	IND-HYR Sawéli	LPM Darty	9
✓	24/09/2009	AR. Réxy	ETR White Twix	4

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	PEX46194M	PEX-PVC	Wise †	Buldir	20/01/2016	14 mo	Other heart or vascular problem	♂
✓	PEX56087F	PEX-LPM	Gazelle †		08/06/2021	28 mo	Undetermined cause	♀
✓	PEX55769M	PEX-LPM	Coffee †		08/06/2021	26 mo	Undetermined tumor	♂
✓	PEX54877M	PEX	Undo †		18/02/2020	18 mo	Undetermined cause	♂
✓	PEX39239M	PEX-PVC	Tekokota †	Zad	03/04/2014	– ?? –	No information	♂
✓	PEX54876F	PEX	Soa		18/02/2020	52 mo	– alive –	♀
✓	PEX54878M	PEX	Sanka		18/02/2020	52 mo	– alive –	♂
✓	PEX46180F	PEX-PVC	Tanaga †		20/01/2016	26 mo	Undetermined infection or abscess	♀
✓	PEX46186F	PEX-PVC	Maé †	Shémya	20/01/2016	22 mo	Virus, epidemic outbreak, etc.	♀
✓	PEX46193M	PEX-PVC	Tamagotchi †	Bobrof	20/01/2016	36 mo	Undetermined tumor	♂