CHL – Les Candy Ratons 

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Statistics

Breeding statistics

Breeding activity period	2014–2026 (11 years, 8 months)

Declared litters	23 litters, 190 pups
⨽ internal (born in the rattery)	⨽ 22 litters, 182 pups
⨽ external (other contributed litters)	⨽ 1 litter, 8 pups

All rat records	199 rats
⨽ females	⨽ 90 females (45.2 %)
⨽ males	⨽ 109 males (54.8 %)

Litter statistics

Average mother age	265 days (8.7 months)
Average father age	561 days (18.4 months)
Average litter size	8.3 pups per litter
Average sex ratio	1.211 (about 6 males for 5 females)

Lifespan statistics

Bred rats recorded as deceased	110 rats (57.6 % of recorded bred rats)
⨽ declared with known date	⨽ 96 rats (87.3 %)
⨽ presumed dead	⨽ 14 rats (12.7 %)

Average lifespan of bred rats	23.2 months (♀: 21.9 months – ♂: 24.3 months)
⨽ infant mortality excluded	⨽ 23.2 months (♀: 21.9 months – ♂: 24.3 months)
⨽ accidents excluded	⨽ 23.4 months (♀: 22.1 months – ♂: 24.4 months)

Oldest bred rat	CHL Margrethe (deceased at 3 years, 6 months, 29 days)

Death causes statistics

Primary death causes by decreasing frequency

28.13 %	Unknown cause
15.63 %	Other
13.54 %	Respiratory
10.42 %	Cardiovascular
10.42 %	Neurological (brain, spinal cords, nerves)
7.29 %	Reproductive system
7.29 %	Old age, natural death (from 24 month old minimum)
4.17 %	Accidents, traumas, poisonings
2.08 %	Muscles and skeleton
1.04 %	Eye, ear, mouth, face

Secondary death causes by decreasing frequency

28.13 %	Undetermined cause (known date)
8.33 %	Bronchitis, pneumonia
8.33 %	Undetermined tumor (affected organ unknown)
7.29 %	*Old age, natural death (from 24 month old minimum)
5.21 %	Other heart or vascular problem
5.21 %	*Respiratory
4.17 %	Mammary tumor
4.17 %	Undetermined infection or abscess
4.17 %	Heart failure, valvular disease
4.17 %	*Neurological (brain, spinal cords, nerves)
3.13 %	Pituitary tumor
3.13 %	Complications of gestation or parturition
3.13 %	Domestic accident (crush, door...)
3.13 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.04 %	Progressive spinal cord damage, degenerative paralysis
1.04 %	Facial abscess (excluding teeth and Zymbal gland)
1.04 %	Stroke
1.04 %	Bone tumor
1.04 %	Hemorrhage (exaggerated relative to the context, coagulation disorder, hemophilia)
1.04 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.04 %	Muscle tumor
1.04 %	Brain infection, encephalitis, meningitis

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✗	07/06/2026	CHL Marine	CHL Serj	10
✓	30/04/2026	CHL Patacrepe	DNR-CHL Warmog	4
✗	29/04/2026	CHL Sally	DNR-CHL Warmog	12
✓	05/04/2026	CHL Alissa	DNR-CHL Warmog	6
✓	29/03/2026	CHL Marine	CHL Einar	13
✓	24/02/2026	CHL Louise	CHL Serj	12
✓	22/11/2025	CHL Louise	IND Karel	14
✓	09/10/2025	CHL Masha	TDC-PDI Thanos	8
✓	08/09/2025	IND Roseline	TDC-PDI Thanos	6
✓	01/05/2025	IND Roseline	TDC-PDI Thanos	5

Recently modified rats

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State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	CHL62457F	CHL-DNR	Sandy		30/04/2026	2 mo	– alive –	♀
✓	CHL62455M	CHL-DNR	Patrick		30/04/2026	2 mo	– alive –	♂
✓	CHL62456M	CHL-DNR	Carlo		30/04/2026	2 mo	– alive –	♂
✓	CHL62454M	CHL-DNR	Bob		30/04/2026	2 mo	– alive –	♂
✓	CHL62460M	CHL-DNR	Vladimir		29/04/2026	2 mo	– alive –	♂
✓	CHL62461M	CHL-DNR	Vlad		29/04/2026	2 mo	– alive –	♂
✓	CHL62466F	CHL-DNR	Tartelette		29/04/2026	2 mo	– alive –	♀
✓	CHL62465F	CHL-DNR	Patachoux		29/04/2026	2 mo	– alive –	♀
✓	CHL62463F	CHL-DNR	Muffin		29/04/2026	2 mo	– alive –	♀
✓	CHL62464F	CHL-DNR	Ganache		29/04/2026	2 mo	– alive –	♀