CHC – Champ de Coquelicots 

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Statistics

Breeding statistics

Breeding activity period	2021–2026 (4 years, 9 months)

Declared litters	6 litters, 83 pups
⨽ internal (born in the rattery)	⨽ 6 litters, 83 pups
⨽ external (other contributed litters)	⨽ 0 litter, no pup

All rat records	91 rats
⨽ females	⨽ 45 females (49.5 %)
⨽ males	⨽ 46 males (50.5 %)

Litter statistics

Average mother age	217 days (7.1 months)
Average father age	497 days (16.3 months)
Average litter size	13.8 pups per litter
Average sex ratio	1.022 (about 1 male for 1 female)

Lifespan statistics

Bred rats recorded as deceased	47 rats (51.6 % of recorded bred rats)
⨽ declared with known date	⨽ 40 rats (85.1 %)
⨽ presumed dead	⨽ 7 rats (14.9 %)

Average lifespan of bred rats	24 months (♀: 25 months – ♂: 23.1 months)
⨽ infant mortality excluded	⨽ 24 months (♀: 25 months – ♂: 23.1 months)
⨽ accidents excluded	⨽ 24.5 months (♀: 25 months – ♂: 24.1 months)

Oldest bred rat	CHC Kenaï (deceased at 3 years, 4 months, 10 days)

Death causes statistics

Primary death causes by decreasing frequency

27.5 %	Old age, natural death (from 24 month old minimum)
25 %	Neurological (brain, spinal cords, nerves)
25 %	Unknown cause
15 %	Respiratory
7.5 %	Eye, ear, mouth, face
2.5 %	Cardiovascular
2.5 %	Accidents, traumas, poisonings
2.5 %	Other
2.5 %	Urinary system (kidney, bladder)

Secondary death causes by decreasing frequency

27.5 %	*Old age, natural death (from 24 month old minimum)
22.5 %	Pituitary tumor
15 %	Undetermined cause (known date)
10 %	*Unknown cause
7.5 %	Bronchitis, pneumonia
7.5 %	*Respiratory
5 %	Zymbal gland tumor
2.5 %	Otitis, ear abscess
2.5 %	Heart attack, infarct, pulmonary embolism
2.5 %	Epilepsy
2.5 %	Domestic accident (crush, door...)
2.5 %	Other known cause fitting no other category
2.5 %	Other urinary disorder

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✗	18/02/2026	CHC Syanna	HPM-DEL Jivara	13
✓	05/08/2025	HPM Poppy	CHC-TDC Hayate	16
✓	04/04/2024	CHC Kassey	PDI-TDC Black Treasure	15
✓	11/08/2023	CHC-DNR Fluffy Moon	OPR Severus	15
✓	09/02/2023	CHC Fragaria Vesca	DNR Ekko	11
✓	09/06/2022	CDC-DNA Charlie	DNR Bigorneau	13
✓	25/04/2021	DNR Ipomea Violacea	OPR-DOU Lilas	13

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	CHC62325M	CHC-HPM	Larix		18/02/2026	3 mo	– alive –	♂
✓	CHC62332M	CHC-HPM	Fitzroya		18/02/2026	3 mo	– alive –	♂
✗	CHC62333M	CHC-HPM	Capuccino	Torreya	18/02/2026	3 mo	– alive –	♂
✓	CHC62331M	CHC-HPM	Koko	Gingko	18/02/2026	3 mo	– alive –	♂
✓	CHC62330M	CHC-HPM	Tsuki	Tsuga	18/02/2026	3 mo	– alive –	♂
✓	CHC62329M	CHC-HPM	Leto	Cycas	18/02/2026	3 mo	– alive –	♂
✓	CHC62328M	CHC-HPM	Fraisier	Juniperus	18/02/2026	3 mo	– alive –	♂
✓	CHC62326M	CHC-HPM	Taeko	Nilssonia	18/02/2026	3 mo	– alive –	♂
✓	CHC62324M	CHC-HPM	Dioon		18/02/2026	3 mo	– alive –	♂
✗	CHC62323F	CHC-HPM	Wollemia		18/02/2026	3 mo	– alive –	♀