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	369 rats
⨽ females	⨽ 189 females (51.2 %)
⨽ males	⨽ 180 males (48.8 %)

Litter statistics

Average mother age	N/A
Average father age	N/A
Average litter size	N/A
Average sex ratio	0.952 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	344 rats (93.2 % of recorded bred rats)
⨽ declared with known date	⨽ 207 rats (60.2 %)
⨽ presumed dead	⨽ 137 rats (39.8 %)

Average lifespan of bred rats	20.8 months (♀: 20.2 months – ♂: 21.3 months)
⨽ infant mortality excluded	⨽ 20.8 months (♀: 20.2 months – ♂: 21.3 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

27.05 %	Old age, natural death (from 24 month old minimum)
20.29 %	Unknown cause
20.29 %	Other
10.63 %	Accidents, traumas, poisonings
8.7 %	Respiratory
5.8 %	Neurological (brain, spinal cords, nerves)
2.42 %	Reproductive system
1.45 %	Skin
1.45 %	Cardiovascular
0.97 %	Eye, ear, mouth, face
0.48 %	Digestive
0.48 %	Urinary system (kidney, bladder)

Secondary death causes by decreasing frequency

27.05 %	*Old age, natural death (from 24 month old minimum)
20.29 %	Undetermined cause (known date)
7.73 %	Undetermined tumor (affected organ unknown)
6.76 %	Undetermined infection or abscess
4.83 %	Domestic accident (crush, door...)
4.35 %	Bronchitis, pneumonia
4.35 %	*Respiratory
3.86 %	Stroke
2.9 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
2.9 %	*Other
1.93 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
1.93 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.45 %	Heart failure, valvular disease
1.45 %	*Neurological (brain, spinal cords, nerves)
0.97 %	Pododermatitis
0.97 %	Complications of gestation or parturition
0.48 %	Epilepsy
0.48 %	Kidney tumor
0.48 %	Intestinal obstruction (excluding megacolon)
0.48 %	Diabetes
0.48 %	Otitis, ear abscess
0.48 %	Uterus infection (metritis, pyometra)
0.48 %	Zymbal gland tumor
0.48 %	Other accident or trauma
0.48 %	Suffocation, choking
0.48 %	Mammary tumor
0.48 %	Other reproductive system disorder
0.48 %	Other known cause fitting no other category
0.48 %	*Skin

Related entries

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State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	RB.61035M	RB.	Nifleur		15/05/2024	9 mo	– alive –	♂
✓	RB.61036M	RB.	Patronus		15/05/2024	9 mo	– alive –	♂
✓	RB.61037M	RB.	Ketcho		15/07/2024	7 mo	– alive –	♂
✓	RB.61038M	RB.	Hogwarts		15/07/2024	7 mo	– alive –	♂
✓	RB.57970F	RB.	Yume †		17/04/2023	21 mo	Mammary tumor	♀
✓	RB.60996F	RB.	Helldiver		10/09/2024	5 mo	– alive –	♀
✓	RB.60655M	RB.	Batman		30/05/2024	9 mo	– alive –	♂
✓	RB.60652M	RB.	Minus		02/04/2023	23 mo	– alive –	♂
✓	RB.58265F	RB.	Mavia †		12/04/2023	14 mo	Bronchitis, pneumonia	♀
✓	RB.60722M	RB.	Cortex †		01/01/2023	19 mo	Bronchitis, pneumonia	♂