VIC – Les Rastars 

Statistics

Breeding statistics

Breeding activity period	2016–2025 (9 years)

Declared litters	41 litters, 385 pups
⨽ internal (born in the rattery)	⨽ 29 litters, 257 pups
⨽ external (other contributed litters)	⨽ 12 litters, 128 pups

All rat records	379 rats
⨽ females	⨽ 190 females (50.1 %)
⨽ males	⨽ 189 males (49.9 %)

Litter statistics

Average mother age	207 days (6.8 months)
Average father age	438 days (14.4 months)
Average litter size	9.4 pups per litter
Average sex ratio	0.995 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	183 rats (72 % of recorded bred rats)
⨽ declared with known date	⨽ 157 rats (85.8 %)
⨽ presumed dead	⨽ 26 rats (14.2 %)

Average lifespan of bred rats	20.5 months (♀: 21.9 months – ♂: 19 months)
⨽ infant mortality excluded	⨽ 20.5 months (♀: 21.9 months – ♂: 19 months)
⨽ accidents excluded	⨽ 21.4 months (♀: 22.9 months – ♂: 19.8 months)

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

Death causes statistics

Primary death causes by decreasing frequency

32.48 %	Respiratory
15.29 %	Old age, natural death (from 24 month old minimum)
13.38 %	Accidents, traumas, poisonings
12.1 %	Unknown cause
9.55 %	Neurological (brain, spinal cords, nerves)
6.37 %	Other
5.1 %	Eye, ear, mouth, face
3.82 %	Reproductive system
1.27 %	Digestive
1.27 %	Urinary system (kidney, bladder)

Secondary death causes by decreasing frequency

22.29 %	Bronchitis, pneumonia
15.29 %	*Old age, natural death (from 24 month old minimum)
11.46 %	Undetermined cause (known date)
8.92 %	*Respiratory
3.18 %	Pituitary tumor
3.18 %	Zymbal gland tumor
3.18 %	*Neurological (brain, spinal cords, nerves)
2.55 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
2.55 %	Mammary tumor
2.55 %	Domestic accident (crush, door...)
2.55 %	Suffocation, choking
2.55 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
2.55 %	Heatstroke
1.91 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.91 %	Undetermined tumor (affected organ unknown)
1.27 %	Undetermined infection or abscess
1.27 %	Brain tumor
1.27 %	Falls, fractures, head or spinal cord trauma (excluding fights)
1.27 %	Facial abscess (excluding teeth and Zymbal gland)
0.64 %	Brain infection, encephalitis, meningitis
0.64 %	Otitis, ear abscess
0.64 %	Uterine tumor
0.64 %	Epilepsy
0.64 %	Gastroenteritis, diarrhea
0.64 %	Other respiratory trouble
0.64 %	Stroke
0.64 %	Digestive tumor (stomach, liver, pancreas, intestines...)
0.64 %	Other tumor (salivary, spleen, adrenal, thyroid...)
0.64 %	Other reproductive system disorder
0.64 %	Lung tumor
0.64 %	Urinary or kidney infection
0.64 %	Other urinary disorder
0.64 %	*Unknown cause

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	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
✓	04/06/2024	MIL-VIC Helga	RB. Gelato	11
✓	22/05/2024	RB. Linea	RB. Cortex	14

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	VIC61911M	VIC-ANG	Otaquin	Otaquin	23/10/2025	2 mo	– alive –	♂
✓	VIC61915F	VIC-ANG	Otaria	Otaria	23/10/2025	2 mo	– alive –	♀
✓	VIC61916F	VIC-ANG	Stari	Stari	23/10/2025	2 mo	– alive –	♀
✓	VIC61921F	VIC-ANG	Aquali	Aquali	23/10/2025	2 mo	– alive –	♀
✓	VIC61920F	VIC-ANG	Demanta	Demanta	23/10/2025	2 mo	– alive –	♀
✓	VIC61914M	VIC-ANG	Moustillon		23/10/2025	2 mo	– alive –	♂
✓	VIC60869M	VIC	Spoty		29/11/2024	13 mo	– alive –	♂
✓	VIC61912M	VIC-ANG	Carapuce	Carapuce	23/10/2025	2 mo	– alive –	♂
✓	VIC61913M	VIC-ANG	Loupio		23/10/2025	2 mo	– alive –	♂
✓	VIC61917F	VIC-ANG	Amonita	Amonita	23/10/2025	2 mo	– alive –	♀