DEL – D’ Ombre et de Lumière 

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Statistics

Breeding statistics

Breeding activity period	2016–2025 (8 years, 6 months)

Declared litters	48 litters, 528 pups
⨽ internal (born in the rattery)	⨽ 36 litters, 384 pups
⨽ external (other contributed litters)	⨽ 12 litters, 144 pups

All rat records	526 rats
⨽ females	⨽ 276 females (52.5 %)
⨽ males	⨽ 250 males (47.5 %)

Litter statistics

Average mother age	232 days (7.6 months)
Average father age	516 days (16.9 months)
Average litter size	11 pups per litter
Average sex ratio	0.906 (about 11 females for 10 males)

Lifespan statistics

Bred rats recorded as deceased	300 rats (78.5 % of recorded bred rats)
⨽ declared with known date	⨽ 293 rats (97.7 %)
⨽ presumed dead	⨽ 7 rats (2.3 %)

Average lifespan of bred rats	22.2 months (♀: 23.9 months – ♂: 20.2 months)
⨽ infant mortality excluded	⨽ 24.4 months (♀: 26.1 months – ♂: 22.5 months)
⨽ accidents excluded	⨽ 25.3 months (♀: 27 months – ♂: 23.4 months)

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

Death causes statistics

Primary death causes by decreasing frequency

23.21 %	Respiratory
18.43 %	Other
9.22 %	Infant mortality (up to 6 week old)
9.22 %	Unknown cause
8.87 %	Old age, natural death (from 24 month old minimum)
6.83 %	Accidents, traumas, poisonings
6.83 %	Neurological (brain, spinal cords, nerves)
5.12 %	Digestive
3.75 %	Cardiovascular
3.75 %	Eye, ear, mouth, face
3.07 %	Reproductive system
1.02 %	Urinary system (kidney, bladder)
0.68 %	Skin

Secondary death causes by decreasing frequency

13.99 %	Undetermined tumor (affected organ unknown)
10.24 %	Bronchitis, pneumonia
9.22 %	Undetermined cause (known date)
8.87 %	*Old age, natural death (from 24 month old minimum)
8.53 %	*Respiratory
4.78 %	*Infant mortality (up to 6 week old)
4.44 %	Stillborn
3.41 %	Lung tumor
3.07 %	*Neurological (brain, spinal cords, nerves)
2.39 %	Domestic accident (crush, door...)
2.39 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
2.39 %	*Other
2.05 %	Heart failure, valvular disease
1.71 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.71 %	Pituitary tumor
1.71 %	Digestive tumor (stomach, liver, pancreas, intestines...)
1.37 %	Mammary tumor
1.37 %	Facial tumor (excluding Zymbal tumor)
1.37 %	Zymbal gland tumor
1.37 %	Other heart or vascular problem
1.02 %	Undetermined infection or abscess
1.02 %	Stroke
1.02 %	Other digestive trouble
0.68 %	Epilepsy
0.68 %	Complications of gestation or parturition
0.68 %	Intestinal obstruction (excluding megacolon)
0.68 %	Digestive abscess
0.68 %	Tooth abscess
0.68 %	Other respiratory trouble
0.68 %	Uterine tumor
0.34 %	Bladder tumor
0.34 %	Subcutaneous abscess
0.34 %	Sepsis
0.34 %	Other reproductive system disorder
0.34 %	Kidney tumor
0.34 %	Skin tumor, skin cancer
0.34 %	Hereditary megacolon
0.34 %	Pulmonary edema
0.34 %	Heart attack, infarct, pulmonary embolism
0.34 %	Brain tumor
0.34 %	Generalized cancer, leukemia, lymphoma
0.34 %	Food poisoning
0.34 %	Renal failure
0.34 %	Liver failure
0.34 %	Digestive hemorrhage
0.34 %	Euthanasia without medical cause
0.34 %	*Eye, ear, mouth, face

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	06/05/2025	OPR-DEL Honeydukes	DEL Lo'ak	5
✓	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

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✗	DEL57567F	DEL-LVM	Petite Fûtée †		11/10/2022	36 mo	Domestic accident	♀
✓	DEL58375F	DEL	Neytiri †		30/04/2023	28 mo	Brain tumor	♀
✓	DEL59461F	DEL	Nyota	Thorn	31/10/2023	24 mo	– alive –	♀
✓	DEL61333F	DEL	Diadem	Isha	05/12/2024	11 mo	– alive –	♀
✓	DEL59462F	DEL	Sterna †	Aunt Shrew	31/10/2023	24 mo	Heart failure, etc.	♀
✓	DEL58379M	DEL	Lo'ak †		30/04/2023	26 mo	Lung tumor	♂
✓	DEL57576M	DEL-LVM	My Draculove †	The Coming Storm	11/10/2022	33 mo	Old age, natural death	♂
✓	DEL61630F	DEL	From Western Woods to Beaversdam †		06/05/2025	1 mo	Other digestive trouble	♀
✓	DEL58865M	DEL	Oppenheimer †		28/09/2023	21 mo	Bronchitis, pneumonia	♂
✓	DEL59463F	DEL	No Thanks †		31/10/2023	19 mo	Digestive abscess	♀