RB. – René Bastiaans  ☾

About

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	346 rats
⨽ females	⨽ 179 females (51.7 %)
⨽ males	⨽ 167 males (48.3 %)

Litter statistics

Average mother age	N/A
Average father age	N/A
Average litter size	N/A
Average sex ratio	0.933 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	329 rats (95.1 % of recorded bred rats)
⨽ declared with known date	⨽ 197 rats (59.9 %)
⨽ presumed dead	⨽ 132 rats (40.1 %)

Average lifespan of bred rats	21 months (♀: 20.4 months – ♂: 21.7 months)
⨽ infant mortality excluded	⨽ 21 months (♀: 20.4 months – ♂: 21.7 months)
⨽ accidents excluded	⨽ 21.7 months (♀: 21.3 months – ♂: 22 months)

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

Death causes statistics

Primary death causes by decreasing frequency

28.43 %	Old age, natural death (from 24 month old minimum)
21.32 %	Other
20.81 %	Unknown cause
10.15 %	Accidents, traumas, poisonings
7.11 %	Respiratory
6.09 %	Neurological (brain, spinal cords, nerves)
1.52 %	Reproductive system
1.52 %	Cardiovascular
1.52 %	Skin
1.02 %	Eye, ear, mouth, face
0.51 %	Digestive

Secondary death causes by decreasing frequency

28.43 %	*Old age, natural death (from 24 month old minimum)
20.81 %	Undetermined cause (known date)
8.12 %	Undetermined tumor (affected organ unknown)
7.11 %	Undetermined infection or abscess
5.08 %	Domestic accident (crush, door...)
4.57 %	*Respiratory
4.06 %	Stroke
3.05 %	*Other
2.54 %	Bronchitis, pneumonia
2.54 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
2.03 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
2.03 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.52 %	Heart failure, valvular disease
1.52 %	*Neurological (brain, spinal cords, nerves)
1.02 %	Complications of gestation or parturition
1.02 %	Pododermatitis
0.51 %	Zymbal gland tumor
0.51 %	Other accident or trauma
0.51 %	Other known cause fitting no other category
0.51 %	Epilepsy
0.51 %	Intestinal obstruction (excluding megacolon)
0.51 %	Diabetes
0.51 %	Otitis, ear abscess
0.51 %	Uterus infection (metritis, pyometra)
0.51 %	*Skin

Related entries

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	RB.6615F	RB.	Opaline †		01/05/2007	8 mo	Other	♀
✓	RB.58266F	RB.	Azula		13/04/2023	15 mo	– alive –	♀
✓	RB.55473M	RB.	Motörhead †		15/06/2021	28 mo	Old age, natural death	♂
✓	RB.58271M	RB.	Soren †		15/08/2022	15 mo	Other known cause fitting no other category	♂
✓	RB.54680M	RB.	Simplet †		15/09/2019	27 mo	Zymbal gland tumor	♂
✓	RB.54824M	RB.	Thyrion †		05/07/2019	11 mo	Other accident or trauma	♂
✓	RB.58495F	RB.	Daphné		15/04/2023	15 mo	– alive –	♀
✓	RB.58950F	RB.	Linea		01/12/2023	7 mo	– alive –	♀
✓	RB.58959M	RB.	Vallauris		02/12/2023	7 mo	– alive –	♂
✓	RB.58493M	RB.	Nuka		01/04/2023	15 mo	– alive –	♂