DEL – D’ Ombre et de Lumière 

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Statistics

Breeding statistics

Breeding activity period	2016–2024 (7 years, 5 months)

Declared litters	39 litters, 434 pups
⨽ internal (born in the rattery)	⨽ 29 litters, 310 pups
⨽ external (other contributed litters)	⨽ 10 litters, 124 pups

All rat records	430 rats
⨽ females	⨽ 229 females (53.3 %)
⨽ males	⨽ 201 males (46.7 %)

Litter statistics

Average mother age	234 days (7.7 months)
Average father age	498 days (16.3 months)
Average litter size	11.1 pups per litter
Average sex ratio	0.874 (about 8 females for 7 males)

Lifespan statistics

Bred rats recorded as deceased	235 rats (76.8 % of recorded bred rats)
⨽ declared with known date	⨽ 225 rats (95.7 %)
⨽ presumed dead	⨽ 10 rats (4.3 %)

Average lifespan of bred rats	23 months (♀: 25.2 months – ♂: 20.4 months)
⨽ infant mortality excluded	⨽ 24.4 months (♀: 26.5 months – ♂: 21.8 months)
⨽ accidents excluded	⨽ 25.4 months (♀: 27.5 months – ♂: 23 months)

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

Death causes statistics

Primary death causes by decreasing frequency

23.56 %	Other
22.22 %	Respiratory
9.78 %	Unknown cause
9.33 %	Old age, natural death (from 24 month old minimum)
8.44 %	Accidents, traumas, poisonings
7.56 %	Neurological (brain, spinal cords, nerves)
5.78 %	Infant mortality (up to 6 week old)
4 %	Digestive
3.56 %	Cardiovascular
2.67 %	Eye, ear, mouth, face
1.78 %	Reproductive system
0.89 %	Skin
0.44 %	Urinary system (kidney, bladder)

Secondary death causes by decreasing frequency

18.67 %	Undetermined tumor (affected organ unknown)
10.67 %	Bronchitis, pneumonia
9.78 %	Undetermined cause (known date)
9.33 %	*Old age, natural death (from 24 month old minimum)
8 %	*Respiratory
5.78 %	*Infant mortality (up to 6 week old)
4 %	*Neurological (brain, spinal cords, nerves)
3.11 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
3.11 %	*Other
2.67 %	Lung tumor
2.67 %	Domestic accident (crush, door...)
2.22 %	Heart failure, valvular disease
2.22 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.78 %	Pituitary tumor
1.33 %	Other heart or vascular problem
1.33 %	Undetermined infection or abscess
1.33 %	Zymbal gland tumor
0.89 %	Stroke
0.89 %	Epilepsy
0.89 %	Complications of gestation or parturition
0.89 %	Intestinal obstruction (excluding megacolon)
0.89 %	Other digestive trouble
0.89 %	Facial tumor (excluding Zymbal tumor)
0.89 %	Digestive tumor (stomach, liver, pancreas, intestines...)
0.89 %	Other respiratory trouble
0.44 %	Euthanasia without medical cause
0.44 %	Subcutaneous abscess
0.44 %	Other reproductive system disorder
0.44 %	Skin tumor, skin cancer
0.44 %	Hereditary megacolon
0.44 %	Tooth abscess
0.44 %	Food poisoning
0.44 %	Renal failure
0.44 %	Liver failure
0.44 %	Digestive hemorrhage
0.44 %	Uterine tumor

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	31/03/2024	HDL Mumière	DEL-LVM Vélociraptor	17
✓	31/10/2023	DEL Tsireya	CRV XBox	14
✓	28/09/2023	OPR Nom d'une Chandelle !	DTC-PLS Hyperbolic Discounting	6
✓	30/04/2023	DEL-LVM Rexy	CDC-DNA Barbouille	10
✓	04/03/2023	DEL Utopia	ARK Babe	16
✓	27/02/2023	LVM Tilly	DEL-DNR Odyssey of the 12th Talisman	6
✓	28/12/2022	DEL-ARD Naiad	ARK Grinch	2
✓	11/10/2022	DEL-DNR Abysse Mortifère	LVM Shadowfax	12
✓	03/09/2022	DEL-DNR Valley of the Unicorns	ARK Grinch	12
✓	07/02/2022	DEL-NAM Vaiana	DEL Elixir	9

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	DEL57527F	DEL	Black Mirror †		03/09/2022	17 mo	Undetermined cause	♀
✓	DEL57568F	DEL-LVM	Poucette †	Ellie Sattler	11/10/2022	20 mo	Respiratory	♀
✓	DEL56598M	DEL-DNR	Puttanesca †	Verenflammes	19/01/2022	26 mo	Other heart or vascular problem	♂
✗	DEL56412F	DEL-DNR	Tchiki †	Child of the Stargazer	19/12/2021	28 mo	Uterine tumor	♀
✗	DEL56596F	DEL-DNR	Misa †	Rage des Neiges	19/01/2022	29 mo	Respiratory	♀
✓	DEL49355F	DEL	Asphodèle †	Lolita	20/05/2017	24 mo	Pituitary tumor	♀
✓	DEL56414F	DEL-DNR	Poona †	The Treasure of Tardos	19/12/2021	26 mo	Undetermined cause	♀
✓	DEL56409F	DEL-DNR	Valley of the Unicorns †		19/12/2021	25 mo	Lung tumor	♀
✓	DEL56411F	DEL-DNR	Citadel of Shadow †		19/12/2021	29 mo	Lung tumor	♀
✓	DEL56421M	DEL-DNR	Mondo Zax †	Day of the Dungeon Master	19/12/2021	23 mo	Facial tumor	♂