HPM – Hope au pays des merveilles 

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Statistics

Breeding statistics

Breeding activity period	2023–2026 (3 years, 5 months)

Declared litters	9 litters, 107 pups
⨽ internal (born in the rattery)	⨽ 7 litters, 83 pups
⨽ external (other contributed litters)	⨽ 2 litters, 24 pups

All rat records	107 rats
⨽ females	⨽ 52 females (48.6 %)
⨽ males	⨽ 55 males (51.4 %)

Litter statistics

Average mother age	231 days (7.6 months)
Average father age	536 days (17.6 months)
Average litter size	11.9 pups per litter
Average sex ratio	1.058 (about 1 male for 1 female)

Lifespan statistics

Bred rats recorded as deceased	35 rats (42.2 % of recorded bred rats)
⨽ declared with known date	⨽ 32 rats (91.4 %)
⨽ presumed dead	⨽ 3 rats (8.6 %)

Average lifespan of bred rats	20 months (♀: 20.4 months – ♂: 19.3 months)
⨽ infant mortality excluded	⨽ 21.3 months (♀: 21.5 months – ♂: 20.9 months)
⨽ accidents excluded	⨽ 22.4 months (♀: 20.9 months – ♂: 24.8 months)

Oldest bred rat	HPM-LPM Lincoln (deceased at 2 years, 8 months, 11 days)

Death causes statistics

Primary death causes by decreasing frequency

31.25 %	Respiratory
9.38 %	Accidents, traumas, poisonings
9.38 %	Old age, natural death (from 24 month old minimum)
9.38 %	Unknown cause
9.38 %	Eye, ear, mouth, face
6.25 %	Other
6.25 %	Reproductive system
6.25 %	Digestive
6.25 %	Infant mortality (up to 6 week old)
6.25 %	Neurological (brain, spinal cords, nerves)

Secondary death causes by decreasing frequency

15.63 %	Bronchitis, pneumonia
9.38 %	Other respiratory trouble
9.38 %	Undetermined cause (known date)
9.38 %	*Old age, natural death (from 24 month old minimum)
6.25 %	Zymbal gland tumor
6.25 %	Uterine tumor
6.25 %	*Infant mortality (up to 6 week old)
6.25 %	*Respiratory
3.13 %	Generalized cancer, leukemia, lymphoma
3.13 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
3.13 %	Domestic accident (crush, door...)
3.13 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
3.13 %	Progressive spinal cord damage, degenerative paralysis
3.13 %	Other tumor (salivary, spleen, adrenal, thyroid...)
3.13 %	Digestive hemorrhage
3.13 %	Facial abscess (excluding teeth and Zymbal gland)
3.13 %	Digestive tumor (stomach, liver, pancreas, intestines...)
3.13 %	Pituitary tumor

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	05/08/2026	HDL Suzie Poo	HPM Earl	11
✓	13/05/2026	HPM-RMJ Elena Fuente	HDL Saparazar	8
✓	18/02/2026	CHC Syanna	HPM-DEL Jivara	13
✓	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
✓	HPM61755M	HPM-RMJ	Doc Holiday †		28/08/2025	13 mo	Zymbal gland tumor	♂
✓	HPM59662M	HPM-DEL	Sky †	Oriado	31/03/2024	30 mo	Digestive tumor	♂
✓	HPM61175F	HPM	Mika †	Mika - Happy Ending	21/01/2025	17 mo	Undetermined cause	♀
✓	HPM61754M	HPM-RMJ	Durin	Lucky Duke	28/08/2025	14 mo	– alive –	♂
✓	HPM59660F	HPM-DEL	Azelia	Azelia	31/03/2024	31 mo	– alive –	♀
✓	HPM59661F	HPM-DEL	Tanariva	Tanariva	31/03/2024	31 mo	– alive –	♀
✓	HPM59676F	HPM-DEL	Fleur de Cao	Fleur de cao	31/03/2024	31 mo	– alive –	♀
✓	HPM62510M	HPM-HDL	Feirge		13/05/2026	6 mo	– alive –	♂
✓	HPM62511M	HPM-HDL	Teine		13/05/2026	6 mo	– alive –	♂
✓	HPM62505F	HPM-HDL	Andarna		13/05/2026	6 mo	– alive –	♀