RB. – René Bastiaans  ☾

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Statistics

Breeding statistics

Breeding activity period	N/A

Declared litters	0 litter, no pup
⨽ internal (born in the rattery)	⨽ 0 litter, no pup
⨽ external (other contributed litters)	⨽ 0 litter, no pup

All rat records	384 rats
⨽ females	⨽ 192 females (50 %)
⨽ males	⨽ 192 males (50 %)

Litter statistics

Average mother age	N/A
Average father age	N/A
Average litter size	N/A
Average sex ratio	Balanced (1 male for 1 female)

Lifespan statistics

Bred rats recorded as deceased	369 rats (96.1 % of recorded bred rats)
⨽ declared with known date	⨽ 230 rats (62.3 %)
⨽ presumed dead	⨽ 139 rats (37.7 %)

Average lifespan of bred rats	20.8 months (♀: 20.3 months – ♂: 21.1 months)
⨽ infant mortality excluded	⨽ 20.8 months (♀: 20.3 months – ♂: 21.1 months)
⨽ accidents excluded	⨽ 21.4 months (♀: 21.3 months – ♂: 21.6 months)

Oldest bred rat	RB. Amsterdam Explorator (deceased at 3 years, 8 months, 29 days)

Death causes statistics

Primary death causes by decreasing frequency

26.09 %	Old age, natural death (from 24 month old minimum)
21.3 %	Unknown cause
18.7 %	Other
10.87 %	Accidents, traumas, poisonings
9.13 %	Respiratory
5.22 %	Neurological (brain, spinal cords, nerves)
2.61 %	Reproductive system
1.74 %	Digestive
1.3 %	Skin
1.3 %	Cardiovascular
1.3 %	Eye, ear, mouth, face
0.43 %	Urinary system (kidney, bladder)

Secondary death causes by decreasing frequency

26.09 %	*Old age, natural death (from 24 month old minimum)
21.3 %	Undetermined cause (known date)
6.96 %	Undetermined tumor (affected organ unknown)
6.09 %	Undetermined infection or abscess
4.78 %	Bronchitis, pneumonia
4.35 %	Domestic accident (crush, door...)
4.35 %	*Respiratory
3.48 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
3.48 %	Stroke
2.61 %	*Other
1.74 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.74 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
1.3 %	Heart failure, valvular disease
1.3 %	*Neurological (brain, spinal cords, nerves)
0.87 %	Pododermatitis
0.87 %	Complications of gestation or parturition
0.87 %	Suffocation, choking
0.43 %	Sepsis
0.43 %	Epilepsy
0.43 %	Other known cause fitting no other category
0.43 %	Intestinal obstruction (excluding megacolon)
0.43 %	Kidney tumor
0.43 %	Diabetes
0.43 %	Other head or neck related trouble
0.43 %	Otitis, ear abscess
0.43 %	Digestive tumor (stomach, liver, pancreas, intestines...)
0.43 %	Uterus infection (metritis, pyometra)
0.43 %	Digestive abscess
0.43 %	Zymbal gland tumor
0.43 %	Other accident or trauma
0.43 %	Mammary tumor
0.43 %	Other reproductive system disorder
0.43 %	*Skin
0.43 %	*Reproductive system
0.43 %	*Digestive

Related entries

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	RB.62763M	RB.	Django		04/07/2026	3 mo	– alive –	♂
✓	RB.62762M	RB.	Tiramisu		15/04/2026	6 mo	– alive –	♂
✓	RB.62739F	RB.	Solea		18/07/2026	3 mo	– alive –	♀
✓	RB.62742M	RB.	Sköll		01/06/2026	4 mo	– alive –	♂
✓	RB.62741M	RB.	Awen		25/05/2026	4 mo	– alive –	♂
✓	RB.62740M	RB.	Apero		25/02/2026	7 mo	– alive –	♂
✓	RB.61036M	RB.	Patronus †		15/05/2024	26 mo	Old age, natural death	♂
✓	RB.61038M	RB.	Hogwarts †		15/07/2024	24 mo	Undetermined cause	♂
✓	RB.61035M	RB.	Nifleur †		15/05/2024	26 mo	Undetermined cause	♂
✓	RB.60618F	RB.	Sia †		15/04/2024	26 mo	Digestive tumor	♀