DNR – Donjon et Ratons 

Statistics

Breeding statistics

Breeding activity period	2018–2026 (7 years, 11 months)

Declared litters	27 litters, 262 pups
⨽ internal (born in the rattery)	⨽ 18 litters, 172 pups
⨽ external (other contributed litters)	⨽ 9 litters, 90 pups

All rat records	273 rats
⨽ females	⨽ 127 females (46.5 %)
⨽ males	⨽ 146 males (53.5 %)

Litter statistics

Average mother age	256 days (8.4 months)
Average father age	588 days (19.3 months)
Average litter size	9.7 pups per litter
Average sex ratio	1.15 (about 8 males for 7 females)

Lifespan statistics

Bred rats recorded as deceased	117 rats (68 % of recorded bred rats)
⨽ declared with known date	⨽ 97 rats (82.9 %)
⨽ presumed dead	⨽ 20 rats (17.1 %)

Average lifespan of bred rats	25 months (♀: 26.3 months – ♂: 23.5 months)
⨽ infant mortality excluded	⨽ 25.5 months (♀: 26.8 months – ♂: 24.1 months)
⨽ accidents excluded	⨽ 25.5 months (♀: 26.8 months – ♂: 24.1 months)

Oldest bred rat	DNR-DTC Hoops (deceased at 3 years, 3 months, 20 days)

Death causes statistics

Primary death causes by decreasing frequency

28.87 %	Other
20.62 %	Respiratory
14.43 %	Neurological (brain, spinal cords, nerves)
14.43 %	Old age, natural death (from 24 month old minimum)
9.28 %	Unknown cause
3.09 %	Reproductive system
2.06 %	Accidents, traumas, poisonings
2.06 %	Urinary system (kidney, bladder)
2.06 %	Infant mortality (up to 6 week old)
1.03 %	Cardiovascular
1.03 %	Muscles and skeleton
1.03 %	Digestive

Secondary death causes by decreasing frequency

22.68 %	Undetermined tumor (affected organ unknown)
14.43 %	*Old age, natural death (from 24 month old minimum)
10.31 %	*Neurological (brain, spinal cords, nerves)
9.28 %	Bronchitis, pneumonia
9.28 %	Undetermined cause (known date)
6.19 %	*Respiratory
4.12 %	*Other
3.09 %	Pituitary tumor
3.09 %	Mammary tumor
3.09 %	Pulmonary edema
2.06 %	Stillborn
2.06 %	Kidney tumor
2.06 %	Other tumor (salivary, spleen, adrenal, thyroid...)
2.06 %	Lung tumor
1.03 %	Heart failure, valvular disease
1.03 %	Muscle tumor
1.03 %	Other digestive trouble
1.03 %	Domestic accident (crush, door...)
1.03 %	Progressive spinal cord damage, degenerative paralysis
1.03 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	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
✓	24/07/2024	HDL-TDC Síla	DEL-LVM Tortuga	12
✓	13/06/2024	DNR Nightsong	CHL Boaz	8
✓	28/09/2023	DNR Aela	DEL-DNR Mondo Zax	10
✓	09/02/2023	CHC Fragaria Vesca	DNR Ekko	11
✓	30/01/2023	DNR Sul Sul	IND-DNR Dr Feelgood	9
✓	03/09/2022	DNR Vi	DTC Bolognaise	13
✓	17/06/2022	DNR Yevra	DNR Emile	14

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	DNR60416M	DNR	Duke Hyou †	Liono	24/07/2024	23 mo	Undetermined cause	♂
✓	DNR59935F	DNR-CHL	Zhonya		13/06/2024	24 mo	– alive –	♀
✓	DNR59934F	DNR-CHL	Rylai		13/06/2024	24 mo	– alive –	♀
✓	DNR59937M	DNR-CHL	Youmuu †		13/06/2024	19 mo	Muscle tumor	♂
✓	DNR57438F	DNR-DTC	Hoops †	Syreth	03/09/2022	40 mo	Old age, natural death	♀
✓	DNR57684M	DNR	JinSoo †	Derkeethus	30/01/2023	29 mo	Other tumor	♂
✓	DNR59939M	DNR-CHL	Hara-kiri †		13/06/2024	1 mo	Other digestive trouble	♂
✓	DNR56619M	DNR	Tim †	Arthas	09/12/2021	26 mo	Bronchitis, pneumonia	♂
✓	DNR57687M	DNR	Jyrik †		30/01/2023	25 mo	Neurological	♂
✓	DNR57454F	DNR-DTC	Ehlonna †		03/09/2022	31 mo	Old age, natural death	♀