HPM – Hope au pays des merveilles 

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Statistics

Breeding statistics

Breeding activity period	2023–2025 (2 years, 6 months)

Declared litters	5 litters, 61 pups
⨽ internal (born in the rattery)	⨽ 5 litters, 61 pups
⨽ external (other contributed litters)	⨽ 0 litter, no pup

All rat records	74 rats
⨽ females	⨽ 43 females (58.1 %)
⨽ males	⨽ 31 males (41.9 %)

Litter statistics

Average mother age	230 days (7.6 months)
Average father age	508 days (16.6 months)
Average litter size	12.2 pups per litter
Average sex ratio	0.721 (about 7 females for 5 males)

Lifespan statistics

Bred rats recorded as deceased	24 rats (32.4 % of recorded bred rats)
⨽ declared with known date	⨽ 24 rats (100 %)
⨽ presumed dead	⨽ No rat (0 %)

Average lifespan of bred rats	18.5 months (♀: 19.6 months – ♂: 16.3 months)
⨽ infant mortality excluded	⨽ 20.2 months (♀: 20.9 months – ♂: 18.7 months)
⨽ accidents excluded	⨽ 22.1 months (♀: 20.9 months – ♂: 25.6 months)

Oldest bred rat	HPM-LPM Monty (deceased at 2 years, 7 months, 16 days)

Death causes statistics

Primary death causes by decreasing frequency

29.17 %	Respiratory
12.5 %	Old age, natural death (from 24 month old minimum)
8.33 %	Eye, ear, mouth, face
8.33 %	Neurological (brain, spinal cords, nerves)
8.33 %	Accidents, traumas, poisonings
8.33 %	Other
8.33 %	Reproductive system
8.33 %	Infant mortality (up to 6 week old)
4.17 %	Digestive
4.17 %	Unknown cause

Secondary death causes by decreasing frequency

16.67 %	Bronchitis, pneumonia
12.5 %	*Old age, natural death (from 24 month old minimum)
8.33 %	Uterine tumor
8.33 %	*Respiratory
8.33 %	*Infant mortality (up to 6 week old)
4.17 %	Undetermined cause (known date)
4.17 %	Generalized cancer, leukemia, lymphoma
4.17 %	Facial abscess (excluding teeth and Zymbal gland)
4.17 %	Domestic accident (crush, door...)
4.17 %	Pituitary tumor
4.17 %	Zymbal gland tumor
4.17 %	Other respiratory trouble
4.17 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
4.17 %	Progressive spinal cord damage, degenerative paralysis
4.17 %	Other tumor (salivary, spleen, adrenal, thyroid...)
4.17 %	Digestive hemorrhage

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✗	28/08/2025	HPM April	HPM-DEL Django	14
✓	21/01/2025	RB. Ellie	CHC Déimos	12
✓	17/11/2024	HPM-DEL Azelia	HPM-LPM Murphy	7
✓	31/03/2024	HDL Mumière	DEL-LVM Vélociraptor	17
✓	16/02/2023	LPM Perle	LPM-PEX Hiboo	15
✓	14/02/2023	LPM Aïoli	LPM-PEX Pampelune	10

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	HPM59666M	HPM-DEL	Manjari	Manjari	31/03/2024	18 mo	– alive –	♂
✗	HPM59502F	HPM-LPM	Willow †	Raven	14/02/2023	32 mo	Veterinary accident	♀
✓	HPM59507M	HPM-LPM	Simba	Miller	14/02/2023	32 mo	– alive –	♂
✓	HPM59506M	HPM-LPM	Maximus	Jackson	14/02/2023	32 mo	– alive –	♂
✓	HPM61751F	HPM-RMJ	Jesse Jones		28/08/2025	1 mo	– alive –	♂
✓	HPM61747F	HPM-RMJ	Véra Custer		28/08/2025	1 mo	– alive –	♀
✓	HPM59503M	HPM-LPM	Monty †		14/02/2023	31 mo	Old age, natural death	♂
✓	HPM61748F	HPM-RMJ	Suzy Lafayette		28/08/2025	1 mo	– alive –	♀
✓	HPM61749F	HPM-RMJ	Rose Doolan		28/08/2025	1 mo	– alive –	♀
✓	HPM61750M	HPM-RMJ	Sam le vautour		28/08/2025	1 mo	– alive –	♂