HPM – Hope au pays des merveilles 

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Statistics

Breeding statistics

Breeding activity period	2023–2026 (3 years)

Declared litters	6 litters, 75 pups
⨽ internal (born in the rattery)	⨽ 6 litters, 75 pups
⨽ external (other contributed litters)	⨽ 0 litter, no pup

All rat records	76 rats
⨽ females	⨽ 45 females (59.2 %)
⨽ males	⨽ 31 males (40.8 %)

Litter statistics

Average mother age	229 days (7.5 months)
Average father age	509 days (16.7 months)
Average litter size	12.5 pups per litter
Average sex ratio	0.689 (about 13 females for 9 males)

Lifespan statistics

Bred rats recorded as deceased	31 rats (41.3 % of recorded bred rats)
⨽ declared with known date	⨽ 28 rats (90.3 %)
⨽ presumed dead	⨽ 3 rats (9.7 %)

Average lifespan of bred rats	19.8 months (♀: 20.3 months – ♂: 18.9 months)
⨽ infant mortality excluded	⨽ 21.3 months (♀: 21.6 months – ♂: 20.8 months)
⨽ accidents excluded	⨽ 22.6 months (♀: 20.9 months – ♂: 25.7 months)

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

Death causes statistics

Primary death causes by decreasing frequency

35.71 %	Respiratory
10.71 %	Accidents, traumas, poisonings
10.71 %	Old age, natural death (from 24 month old minimum)
7.14 %	Infant mortality (up to 6 week old)
7.14 %	Eye, ear, mouth, face
7.14 %	Neurological (brain, spinal cords, nerves)
7.14 %	Other
7.14 %	Reproductive system
3.57 %	Digestive
3.57 %	Unknown cause

Secondary death causes by decreasing frequency

17.86 %	Bronchitis, pneumonia
10.71 %	Other respiratory trouble
10.71 %	*Old age, natural death (from 24 month old minimum)
7.14 %	Uterine tumor
7.14 %	*Respiratory
7.14 %	*Infant mortality (up to 6 week old)
3.57 %	Progressive spinal cord damage, degenerative paralysis
3.57 %	Other tumor (salivary, spleen, adrenal, thyroid...)
3.57 %	Digestive hemorrhage
3.57 %	Undetermined cause (known date)
3.57 %	Facial abscess (excluding teeth and Zymbal gland)
3.57 %	Generalized cancer, leukemia, lymphoma
3.57 %	Pituitary tumor
3.57 %	Domestic accident (crush, door...)
3.57 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
3.57 %	Zymbal gland tumor
3.57 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✗	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
✓	HPM59664M	HPM-DEL	Gianduja †	Gianduja	31/03/2024	23 mo	Other respiratory trouble	♂
✓	HPM59507M	HPM-LPM	Simba †	Miller	14/02/2023	– ?? –	No information	♂
✓	HPM59506M	HPM-LPM	Maximus †	Jackson	14/02/2023	– ?? –	No information	♂
✓	HPM59642F	HPM-LPM	Clarke †	Clarke	16/02/2023	– ?? –	No information	♀
✓	HPM61745F	HPM-RMJ	Taffyta Muttonfudge	Molly Stark	28/08/2025	7 mo	– alive –	♀
✓	HPM61749F	HPM-RMJ	Vanellope Von Schweetz	Rose Doolan	28/08/2025	7 mo	– alive –	♀
✓	HPM61180M	HPM	Lord Barkis	The Nameless - Angelina	21/01/2025	14 mo	– alive –	♂
✓	HPM61052F	HPM	Aphrodite		17/11/2024	16 mo	– alive –	♀
✓	HPM61053F	HPM	Déméter		17/11/2024	16 mo	– alive –	♀
✓	HPM59668M	HPM-DEL	Ivory †	Dulcey	31/03/2024	22 mo	Bronchitis, pneumonia	♂