VIC – Les Rastars 

Statistics

Breeding statistics

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

Declared litters	39 litters, 366 pups
⨽ internal (born in the rattery)	⨽ 27 litters, 238 pups
⨽ external (other contributed litters)	⨽ 12 litters, 128 pups

All rat records	361 rats
⨽ females	⨽ 182 females (50.4 %)
⨽ males	⨽ 179 males (49.6 %)

Litter statistics

Average mother age	201 days (6.6 months)
Average father age	441 days (14.5 months)
Average litter size	9.4 pups per litter
Average sex ratio	0.984 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	172 rats (73.2 % of recorded bred rats)
⨽ declared with known date	⨽ 146 rats (84.9 %)
⨽ presumed dead	⨽ 26 rats (15.1 %)

Average lifespan of bred rats	20.2 months (♀: 21.7 months – ♂: 18.5 months)
⨽ infant mortality excluded	⨽ 20.2 months (♀: 21.7 months – ♂: 18.5 months)
⨽ accidents excluded	⨽ 21.1 months (♀: 22.6 months – ♂: 19.4 months)

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

Death causes statistics

Primary death causes by decreasing frequency

32.19 %	Respiratory
15.07 %	Old age, natural death (from 24 month old minimum)
14.38 %	Accidents, traumas, poisonings
13.01 %	Unknown cause
7.53 %	Neurological (brain, spinal cords, nerves)
6.85 %	Other
5.48 %	Eye, ear, mouth, face
3.42 %	Reproductive system
1.37 %	Urinary system (kidney, bladder)
1.37 %	Digestive

Secondary death causes by decreasing frequency

21.23 %	Bronchitis, pneumonia
15.07 %	*Old age, natural death (from 24 month old minimum)
12.33 %	Undetermined cause (known date)
9.59 %	*Respiratory
3.42 %	Zymbal gland tumor
3.42 %	*Neurological (brain, spinal cords, nerves)
2.74 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
2.74 %	Heatstroke
2.74 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
2.74 %	Domestic accident (crush, door...)
2.74 %	Suffocation, choking
2.05 %	Undetermined tumor (affected organ unknown)
2.05 %	Mammary tumor
2.05 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.37 %	Facial abscess (excluding teeth and Zymbal gland)
1.37 %	Undetermined infection or abscess
1.37 %	Pituitary tumor
1.37 %	Falls, fractures, head or spinal cord trauma (excluding fights)
0.68 %	Stroke
0.68 %	Other reproductive system disorder
0.68 %	Other tumor (salivary, spleen, adrenal, thyroid...)
0.68 %	Lung tumor
0.68 %	Urinary or kidney infection
0.68 %	Other urinary disorder
0.68 %	Brain infection, encephalitis, meningitis
0.68 %	Otitis, ear abscess
0.68 %	Uterine tumor
0.68 %	Brain tumor
0.68 %	Epilepsy
0.68 %	Gastroenteritis, diarrhea
0.68 %	Other respiratory trouble
0.68 %	Digestive tumor (stomach, liver, pancreas, intestines...)
0.68 %	*Unknown cause

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	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
✓	08/02/2024	MIL Meria	VIC Baldur	12
✓	10/12/2023	MIL Satine	VIC Patmol	8

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	VIC60690F	VIC	Leompia †		31/08/2022	26 mo	Bronchitis, pneumonia	♀
✓	VIC57612F	VIC	Boo †		31/08/2022	36 mo	Old age, natural death	♀
✓	VIC60598M	VIC	Nocibe	Nocibe	20/08/2023	25 mo	– alive –	♂
✓	VIC61603F	VIC	Lecca	Sucette	18/06/2025	3 mo	– alive –	♀
✓	VIC60472M	VIC	Hijo		10/10/2023	23 mo	– alive –	♂
✓	VIC61608M	VIC	Bruce	Malabar	18/06/2025	3 mo	– alive –	♂
✓	VIC60466M	VIC	Junior		20/08/2023	25 mo	– alive –	♂
✓	VIC58015F	VIC	Neytiri †		10/04/2023	26 mo	Old age, natural death	♀
✓	VIC61601F	VIC	Lyria	Smarties	18/06/2025	3 mo	– alive –	♀
✓	VIC61597F	VIC	Gloria	Gloria	16/06/2025	3 mo	– alive –	♀