VIC – Les Rastars 

Statistics

Breeding statistics

Breeding activity period	2016–2025 (9 years, 1 month)

Declared litters	43 litters, 401 pups
⨽ internal (born in the rattery)	⨽ 31 litters, 273 pups
⨽ external (other contributed litters)	⨽ 12 litters, 128 pups

All rat records	396 rats
⨽ females	⨽ 200 females (50.5 %)
⨽ males	⨽ 196 males (49.5 %)

Litter statistics

Average mother age	207 days (6.8 months)
Average father age	444 days (14.6 months)
Average litter size	9.3 pups per litter
Average sex ratio	0.98 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	193 rats (71.5 % of recorded bred rats)
⨽ declared with known date	⨽ 167 rats (86.5 %)
⨽ presumed dead	⨽ 26 rats (13.5 %)

Average lifespan of bred rats	20.4 months (♀: 21.6 months – ♂: 19 months)
⨽ infant mortality excluded	⨽ 20.4 months (♀: 21.6 months – ♂: 19 months)
⨽ accidents excluded	⨽ 21.2 months (♀: 22.4 months – ♂: 19.9 months)

Oldest bred rat	VIC Boo (deceased at 3 years, 4 days)

Death causes statistics

Primary death causes by decreasing frequency

32.34 %	Respiratory
16.17 %	Old age, natural death (from 24 month old minimum)
12.57 %	Unknown cause
12.57 %	Accidents, traumas, poisonings
9.58 %	Neurological (brain, spinal cords, nerves)
5.99 %	Other
4.79 %	Eye, ear, mouth, face
4.19 %	Reproductive system
1.2 %	Urinary system (kidney, bladder)
1.2 %	Digestive

Secondary death causes by decreasing frequency

22.16 %	Bronchitis, pneumonia
16.17 %	*Old age, natural death (from 24 month old minimum)
11.98 %	Undetermined cause (known date)
8.38 %	*Respiratory
3.59 %	Pituitary tumor
2.99 %	Zymbal gland tumor
2.99 %	*Neurological (brain, spinal cords, nerves)
2.4 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
2.4 %	Heatstroke
2.4 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
2.4 %	Mammary tumor
2.4 %	Domestic accident (crush, door...)
2.4 %	Suffocation, choking
1.8 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.8 %	Undetermined tumor (affected organ unknown)
1.2 %	Facial abscess (excluding teeth and Zymbal gland)
1.2 %	Undetermined infection or abscess
1.2 %	Brain tumor
1.2 %	Falls, fractures, head or spinal cord trauma (excluding fights)
1.2 %	Other respiratory trouble
0.6 %	Other tumor (salivary, spleen, adrenal, thyroid...)
0.6 %	Other reproductive system disorder
0.6 %	Lung tumor
0.6 %	Urinary or kidney infection
0.6 %	Other urinary disorder
0.6 %	Brain infection, encephalitis, meningitis
0.6 %	Otitis, ear abscess
0.6 %	Uterine tumor
0.6 %	Epilepsy
0.6 %	Gastroenteritis, diarrhea
0.6 %	Stroke
0.6 %	Digestive tumor (stomach, liver, pancreas, intestines...)
0.6 %	*Reproductive system
0.6 %	*Unknown cause

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	26/11/2025	MIL Eshe	RB. Kipu	8
✓	23/11/2025	MGR Zelya	RB. Kipu	8
✓	23/10/2025	MIL-VIC Obalie	VIC Spoty	11
✓	11/08/2025	RB. Kiwi	ANG-VIC Pomme Dappy	8
✓	18/06/2025	VIC Bourrelet	RB. Patronus	9
✓	16/06/2025	INC Bonnie	ANG-VIC Pomme Dappy	3
✓	26/03/2025	RB. Imara	MIL Tiplouf	7
✓	07/01/2025	RB. Kiwi	MIL-VIC Pettigrew	13
✓	29/11/2024	ANG-VIC Pomme De Reinette	RB. Minus	11
✓	06/11/2024	SAB Calypso	VIC Nocibe	11

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	VIC60878F	VIC	Bloom †		29/11/2024	17 mo	Undetermined cause	♀
✓	VIC61990F	VIC	Byzou	Abyzou	23/11/2025	6 mo	– alive –	♀
✓	VIC60605M	VIC	Tapio †		20/08/2023	32 mo	Old age, natural death	♂
✓	VIC61028F	VIC	Patchouli †	Nectarine	07/01/2025	16 mo	Pituitary tumor	♀
✓	VIC60877F	VIC	Sky †		29/11/2024	17 mo	Reproductive system	♀
✓	VIC60870M	VIC	Lazar †		29/11/2024	15 mo	Other respiratory trouble	♂
✓	VIC60828F	VIC-ANG	Fuckychou †		06/11/2024	17 mo	Bronchitis, pneumonia	♀
✓	VIC62020M	VIC	Kovu †	Kovu	26/11/2025	4 mo	Undetermined cause	♂
✓	VIC61601F	VIC	Lyria	Smarties	18/06/2025	11 mo	– alive –	♀
✓	VIC61600F	VIC	Cirice †	Tagada	18/06/2025	9 mo	Bronchitis, pneumonia	♀