DEL – D’ Ombre et de Lumière 

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Statistics

Breeding statistics

Breeding activity period	2016–2024 (8 years, 1 month)

Declared litters	45 litters, 504 pups
⨽ internal (born in the rattery)	⨽ 33 litters, 360 pups
⨽ external (other contributed litters)	⨽ 12 litters, 144 pups

All rat records	510 rats
⨽ females	⨽ 267 females (52.4 %)
⨽ males	⨽ 243 males (47.6 %)

Litter statistics

Average mother age	234 days (7.7 months)
Average father age	506 days (16.6 months)
Average litter size	11.2 pups per litter
Average sex ratio	0.91 (about 11 females for 10 males)

Lifespan statistics

Bred rats recorded as deceased	280 rats (74.3 % of recorded bred rats)
⨽ declared with known date	⨽ 273 rats (97.5 %)
⨽ presumed dead	⨽ 7 rats (2.5 %)

Average lifespan of bred rats	22.1 months (♀: 24.1 months – ♂: 19.7 months)
⨽ infant mortality excluded	⨽ 24.5 months (♀: 26.5 months – ♂: 22.1 months)
⨽ accidents excluded	⨽ 25.5 months (♀: 27.5 months – ♂: 23.1 months)

Oldest bred rat	DEL-MOL Seren (deceased at 4 years, 19 days)

Death causes statistics

Primary death causes by decreasing frequency

23.08 %	Respiratory
19.78 %	Other
9.89 %	Infant mortality (up to 6 week old)
8.79 %	Unknown cause
8.79 %	Old age, natural death (from 24 month old minimum)
7.33 %	Accidents, traumas, poisonings
6.59 %	Neurological (brain, spinal cords, nerves)
4.4 %	Digestive
3.3 %	Eye, ear, mouth, face
3.3 %	Cardiovascular
2.93 %	Reproductive system
1.1 %	Urinary system (kidney, bladder)
0.73 %	Skin

Secondary death causes by decreasing frequency

15.02 %	Undetermined tumor (affected organ unknown)
9.89 %	Bronchitis, pneumonia
8.79 %	Undetermined cause (known date)
8.79 %	*Respiratory
8.79 %	*Old age, natural death (from 24 month old minimum)
5.13 %	*Infant mortality (up to 6 week old)
4.76 %	Stillborn
3.3 %	Lung tumor
3.3 %	*Neurological (brain, spinal cords, nerves)
2.56 %	Domestic accident (crush, door...)
2.56 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
2.56 %	*Other
1.83 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.83 %	Pituitary tumor
1.83 %	Digestive tumor (stomach, liver, pancreas, intestines...)
1.83 %	Heart failure, valvular disease
1.47 %	Zymbal gland tumor
1.1 %	Other heart or vascular problem
1.1 %	Undetermined infection or abscess
1.1 %	Mammary tumor
0.73 %	Intestinal obstruction (excluding megacolon)
0.73 %	Other digestive trouble
0.73 %	Facial tumor (excluding Zymbal tumor)
0.73 %	Tooth abscess
0.73 %	Other respiratory trouble
0.73 %	Uterine tumor
0.73 %	Stroke
0.73 %	Epilepsy
0.73 %	Complications of gestation or parturition
0.37 %	Generalized cancer, leukemia, lymphoma
0.37 %	Food poisoning
0.37 %	Renal failure
0.37 %	Liver failure
0.37 %	Digestive hemorrhage
0.37 %	Euthanasia without medical cause
0.37 %	Bladder tumor
0.37 %	Subcutaneous abscess
0.37 %	Sepsis
0.37 %	Other reproductive system disorder
0.37 %	Kidney tumor
0.37 %	Skin tumor, skin cancer
0.37 %	Hereditary megacolon
0.37 %	Pulmonary edema
0.37 %	Heart attack, infarct, pulmonary embolism
0.37 %	*Eye, ear, mouth, face

Related entries

Last contributed litters

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State	Birth date	Dam	Sire	Size	Actions
✓	29/12/2024	MIL-DEL Shadout Mapes	NAM-CPK Spirit	10
✗	19/12/2024	MIL-DEL Irulan Corrino	OPR Vlad	11
✓	05/12/2024	EPR Brocéliande	DEL Ramollo	12
✓	19/11/2024	DEL Pamela Rose	HDL-FAE Shadow Moon	16
✓	08/09/2024	OPR Mélitée du Mélampyre	DEL Othello	8
✓	25/06/2024	DEL The Secret of MIMH	MIL Alcatraz	12
✗	06/06/2024	NAM-CPK Kala	DNA-ARK Western Ramen	8
✓	26/05/2024	EPR Brocéliande	NAM Ghost in the Rain	11
✓	31/03/2024	HDL Mumière	DEL-LVM Vélociraptor	17
✓	31/10/2023	DEL Tsireya	CRV XBox	14

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	DEL58073F	DEL	Othello †		04/03/2023	22 mo	Mammary tumor	♂
✓	DEL61366M	DEL	Goro †		06/06/2024	0 mo	Stillborn	♂
✓	DEL61367F	DEL	Tampopo †		06/06/2024	0 mo	Stillborn	♀
✓	DEL61368M	DEL	Gun †		06/06/2024	0 mo	Stillborn	♂
✓	DEL61369F	DEL	Pisuken †		06/06/2024	0 mo	Stillborn	♀
✓	DEL61370F	DEL	Shohei †		06/06/2024	0 mo	Stillborn	♀
✓	DEL61371M	DEL	Tabo †		06/06/2024	0 mo	Stillborn	♂
✓	DEL61372F	DEL	Lai Lai †		06/06/2024	0 mo	Stillborn	♀
✓	DEL61373M	DEL	Spaghetti sensei †		06/06/2024	0 mo	Stillborn	♂
✗	DEL58076M	DEL	Pépin †	Daybreak	04/03/2023	26 mo	Undetermined tumor	♂