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	378 rats
⨽ females	⨽ 191 females (50.5 %)
⨽ males	⨽ 187 males (49.5 %)

Litter statistics

Average mother age	N/A
Average father age	N/A
Average litter size	N/A
Average sex ratio	0.979 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	363 rats (96 % of recorded bred rats)
⨽ declared with known date	⨽ 224 rats (61.7 %)
⨽ presumed dead	⨽ 139 rats (38.3 %)

Average lifespan of bred rats	20.6 months (♀: 20.2 months – ♂: 21 months)
⨽ infant mortality excluded	⨽ 20.6 months (♀: 20.2 months – ♂: 21 months)
⨽ accidents excluded	⨽ 21.3 months (♀: 21.2 months – ♂: 21.4 months)

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

Death causes statistics

Primary death causes by decreasing frequency

25.89 %	Old age, natural death (from 24 month old minimum)
20.98 %	Unknown cause
19.2 %	Other
11.16 %	Accidents, traumas, poisonings
8.93 %	Respiratory
5.36 %	Neurological (brain, spinal cords, nerves)
2.68 %	Reproductive system
1.34 %	Digestive
1.34 %	Eye, ear, mouth, face
1.34 %	Skin
1.34 %	Cardiovascular
0.45 %	Urinary system (kidney, bladder)

Secondary death causes by decreasing frequency

25.89 %	*Old age, natural death (from 24 month old minimum)
20.98 %	Undetermined cause (known date)
7.14 %	Undetermined tumor (affected organ unknown)
6.25 %	Undetermined infection or abscess
4.91 %	Bronchitis, pneumonia
4.46 %	Domestic accident (crush, door...)
4.02 %	*Respiratory
3.57 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
3.57 %	Stroke
2.68 %	*Other
1.79 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
1.79 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.34 %	Heart failure, valvular disease
1.34 %	*Neurological (brain, spinal cords, nerves)
0.89 %	Pododermatitis
0.89 %	Complications of gestation or parturition
0.89 %	Suffocation, choking
0.45 %	Mammary tumor
0.45 %	Other reproductive system disorder
0.45 %	Sepsis
0.45 %	Epilepsy
0.45 %	Other known cause fitting no other category
0.45 %	Intestinal obstruction (excluding megacolon)
0.45 %	Kidney tumor
0.45 %	Diabetes
0.45 %	Other head or neck related trouble
0.45 %	Otitis, ear abscess
0.45 %	Digestive abscess
0.45 %	Uterus infection (metritis, pyometra)
0.45 %	Zymbal gland tumor
0.45 %	Other accident or trauma
0.45 %	*Skin
0.45 %	*Reproductive system
0.45 %	*Digestive

Related entries

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	RB.61757M	RB.	Arion Sherwind †		13/06/2024	20 mo	Digestive abscess	♂
✓	RB.58950F	RB.	Linea †		01/12/2023	25 mo	Reproductive system	♀
✓	RB.61136M	RB.	Radvek †		01/09/2024	5 mo	Undetermined cause	♂
✓	RB.62108M	RB.	Loulou †		15/09/2024	17 mo	Suffocation, choking	♂
✓	RB.62106M	RB.	Twist		20/09/2024	18 mo	– alive –	♂
✓	RB.60655M	RB.	Batman †		30/05/2024	20 mo	Undetermined cause	♂
✓	RB.60518M	RB.	angelos †		01/01/2024	22 mo	Undetermined cause	♂
✓	RB.58493M	RB.	Nuka †		01/04/2023	29 mo	Old age, natural death	♂
✓	RB.60652M	RB.	Minus †		02/04/2023	28 mo	Old age, natural death	♂
✓	RB.61135M	RB.	Boral		02/09/2024	18 mo	– alive –	♂