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	375 rats
⨽ females	⨽ 191 females (50.9 %)
⨽ males	⨽ 184 males (49.1 %)

Litter statistics

Average mother age	N/A
Average father age	N/A
Average litter size	N/A
Average sex ratio	0.963 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	352 rats (93.9 % of recorded bred rats)
⨽ declared with known date	⨽ 216 rats (61.4 %)
⨽ presumed dead	⨽ 136 rats (38.6 %)

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 – ♂: 21.5 months)

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

Death causes statistics

Primary death causes by decreasing frequency

25.93 %	Old age, natural death (from 24 month old minimum)
20.37 %	Unknown cause
19.91 %	Other
11.11 %	Accidents, traumas, poisonings
9.26 %	Respiratory
5.56 %	Neurological (brain, spinal cords, nerves)
2.31 %	Reproductive system
1.39 %	Cardiovascular
1.39 %	Eye, ear, mouth, face
1.39 %	Skin
0.93 %	Digestive
0.46 %	Urinary system (kidney, bladder)

Secondary death causes by decreasing frequency

25.93 %	*Old age, natural death (from 24 month old minimum)
20.37 %	Undetermined cause (known date)
7.41 %	Undetermined tumor (affected organ unknown)
6.48 %	Undetermined infection or abscess
5.09 %	Bronchitis, pneumonia
4.63 %	Domestic accident (crush, door...)
4.17 %	*Respiratory
3.7 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
3.7 %	Stroke
2.78 %	*Other
1.85 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
1.85 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.39 %	Heart failure, valvular disease
1.39 %	*Neurological (brain, spinal cords, nerves)
0.93 %	Complications of gestation or parturition
0.93 %	Pododermatitis
0.46 %	Zymbal gland tumor
0.46 %	Other accident or trauma
0.46 %	Suffocation, choking
0.46 %	Mammary tumor
0.46 %	Other reproductive system disorder
0.46 %	Sepsis
0.46 %	Epilepsy
0.46 %	Other known cause fitting no other category
0.46 %	Intestinal obstruction (excluding megacolon)
0.46 %	Kidney tumor
0.46 %	Diabetes
0.46 %	Other head or neck related trouble
0.46 %	Otitis, ear abscess
0.46 %	Uterus infection (metritis, pyometra)
0.46 %	*Digestive
0.46 %	*Skin

Related entries

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	RB.61135M	RB.	Boral		02/09/2024	10 mo	– alive –	♂
✓	RB.61133M	RB.	Marketi †		15/05/2024	12 mo	Fights, injuries, etc.	♂
✓	RB.61134M	RB.	Wallas †		10/06/2024	12 mo	Fights, injuries, etc.	♂
✓	RB.61138F	RB.	Valia †		01/10/2024	9 mo	Digestive	♀
✓	RB.60159F	RB.	kora †		12/02/2020	29 mo	Undetermined cause	♀
✓	RB.58959M	RB.	Vallauris †		02/12/2023	12 mo	Other head or neck related trouble	♂
✓	RB.58267F	RB.	Purple †		17/04/2023	20 mo	Bronchitis, pneumonia	♀
✓	RB.58266F	RB.	Azula †		13/04/2023	21 mo	Sepsis	♀
✓	RB.61136M	RB.	Radvek		01/09/2024	10 mo	– alive –	♂
✓	RB.61137F	RB.	Imara		10/09/2024	10 mo	– alive –	♀