CHL – Les Candy Ratons 

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Statistics

Breeding statistics

Breeding activity period	2014–2026 (11 years, 4 months)

Declared litters	18 litters, 135 pups
⨽ internal (born in the rattery)	⨽ 17 litters, 127 pups
⨽ external (other contributed litters)	⨽ 1 litter, 8 pups

All rat records	132 rats
⨽ females	⨽ 60 females (45.5 %)
⨽ males	⨽ 72 males (54.5 %)

Litter statistics

Average mother age	265 days (8.7 months)
Average father age	554 days (18.2 months)
Average litter size	7.5 pups per litter
Average sex ratio	1.2 (about 6 males for 5 females)

Lifespan statistics

Bred rats recorded as deceased	83 rats (66.9 % of recorded bred rats)
⨽ declared with known date	⨽ 61 rats (73.5 %)
⨽ presumed dead	⨽ 22 rats (26.5 %)

Average lifespan of bred rats	22.5 months (♀: 20.5 months – ♂: 24 months)
⨽ infant mortality excluded	⨽ 22.5 months (♀: 20.5 months – ♂: 24 months)
⨽ accidents excluded	⨽ 23 months (♀: 21.3 months – ♂: 24.2 months)

Oldest bred rat	CHL-DMH Serge (deceased at 3 years, 4 months, 22 days)

Death causes statistics

Primary death causes by decreasing frequency

29.51 %	Other
21.31 %	Unknown cause
13.11 %	Respiratory
11.48 %	Old age, natural death (from 24 month old minimum)
8.2 %	Accidents, traumas, poisonings
6.56 %	Neurological (brain, spinal cords, nerves)
4.92 %	Cardiovascular
3.28 %	Reproductive system
1.64 %	Muscles and skeleton

Secondary death causes by decreasing frequency

21.31 %	Undetermined cause (known date)
16.39 %	Undetermined tumor (affected organ unknown)
11.48 %	*Old age, natural death (from 24 month old minimum)
8.2 %	Undetermined infection or abscess
8.2 %	*Respiratory
6.56 %	Domestic accident (crush, door...)
4.92 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
4.92 %	Bronchitis, pneumonia
4.92 %	*Neurological (brain, spinal cords, nerves)
3.28 %	Complications of gestation or parturition
3.28 %	Other heart or vascular problem
1.64 %	Bone tumor
1.64 %	Hemorrhage (exaggerated relative to the context, coagulation disorder, hemophilia)
1.64 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.64 %	Stroke

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✗	24/02/2026	CHL Louise	CHL Serj	12
✗	22/11/2025	CHL Louise	IND Karel	13
✗	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
✓	18/01/2025	DNR-CHL Zhonya	CHL Bounty	15
✓	13/06/2024	DNR Nightsong	CHL Boaz	8
✓	21/10/2023	CHL Marjolaine	TDC Monaco	8
✓	31/03/2023	CHL Fleur	CHL David	5
✓	28/08/2022	CHL Esther	IND Dewee	9

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	CHL61783M	CHL	Jean-Marie †		08/09/2025	4 mo	Undetermined cause	♂
✗	CHL61011M	CHL	Varg †	Varg	18/01/2025	2 mo	Undetermined cause	♂
✗	CHL58834F	CHL	Praline †		21/10/2023	28 mo	Undetermined cause	♀
✓	CHL58827M	CHL	Bounty †		21/10/2023	18 mo	Fights, injuries, etc.	♂
✓	CHL61536M	CHL	Etienne		01/05/2025	11 mo	– alive –	♂
✓	CHL61787F	CHL	Ségolène		08/09/2025	7 mo	– alive –	♀
✓	CHL61010M	CHL	Koopa †	Rob	18/01/2025	12 mo	Other heart or vascular problem	♂
✓	CHL61006M	CHL	Naï †	Craig	18/01/2025	5 mo	Other heart or vascular problem	♂
✓	CHL61008M	CHL	Winnie	Johan	18/01/2025	14 mo	– alive –	♂
✓	CHL61012F	CHL	Amy	Amy	18/01/2025	14 mo	– alive –	♀