LOS – Les O rats  ☾

Statistics

Breeding statistics

Breeding activity period	2006–2015 (9 years, 2 months)

Declared litters	35 litters, 259 pups
⨽ internal (born in the rattery)	⨽ 28 litters, 225 pups
⨽ external (other contributed litters)	⨽ 7 litters, 34 pups

All rat records	260 rats
⨽ females	⨽ 115 females (44.2 %)
⨽ males	⨽ 145 males (55.8 %)

Litter statistics

Average mother age	225 days (7.4 months)
Average father age	532 days (17.4 months)
Average litter size	7.4 pups per litter
Average sex ratio	1.261 (about 5 males for 4 females)

Lifespan statistics

Bred rats recorded as deceased	226 rats (100 % of recorded bred rats)
⨽ declared with known date	⨽ 109 rats (48.2 %)
⨽ presumed dead	⨽ 117 rats (51.8 %)

Average lifespan of bred rats	23 months (♀: 23.2 months – ♂: 22.8 months)
⨽ infant mortality excluded	⨽ 23.6 months (♀: 24.8 months – ♂: 22.8 months)
⨽ accidents excluded	⨽ 24.3 months (♀: 26 months – ♂: 23.2 months)

Oldest bred rat	LOS Elijah (deceased at 3 years, 10 months, 25 days)

Death causes statistics

Primary death causes by decreasing frequency

27.52 %	Old age, natural death (from 24 month old minimum)
20.18 %	Other
18.35 %	Unknown cause
12.84 %	Respiratory
10.09 %	Accidents, traumas, poisonings
5.5 %	Neurological (brain, spinal cords, nerves)
2.75 %	Infant mortality (up to 6 week old)
1.83 %	Eye, ear, mouth, face
0.92 %	Urinary system (kidney, bladder)

Secondary death causes by decreasing frequency

27.52 %	*Old age, natural death (from 24 month old minimum)
18.35 %	Undetermined cause (known date)
13.76 %	Undetermined tumor (affected organ unknown)
11.01 %	*Respiratory
10.09 %	Domestic accident (crush, door...)
5.5 %	*Other
4.59 %	Stroke
2.75 %	*Infant mortality (up to 6 week old)
1.83 %	Bronchitis, pneumonia
0.92 %	Otitis, ear abscess
0.92 %	Epilepsy
0.92 %	Zymbal gland tumor
0.92 %	Renal failure
0.92 %	Undetermined infection or abscess

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	02/10/2015	INC Isobel	LOS Frisson	2
✓	12/06/2014	LOS Jingle Bells	IND Ringo	12
✓	15/12/2013	LOS Okaïdi	LOS Hypnotize	14
✓	20/05/2013	LOS Pretty Eyes	LOS Beau Souris va sur la Colline	12
✓	15/05/2013	LOS Melrose	FDO Sango	10
✓	10/03/2013	LOS Kitana	IND Lee	8
✓	05/02/2013	LOS Mozilla	IND Klahan	10
✓	09/11/2012	IND Ivy	IND Billy Boss	11
✓	05/09/2012	LOS Pluie d'Argent	FDO Bubbly	11
✓	29/05/2012	LOS Aratak	IND Orfeo	13

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	LOS29764M	LOS	Ruisseau Souffletant †		28/12/2011	3 mo	Undetermined cause	♂
✓	LOS29755M	LOS	Arc en Ciel Débordant †		28/12/2011	3 mo	Undetermined cause	♂
✓	LOS51919M	LOS	Silas †		02/10/2015	16 mo	Zymbal gland tumor	♂
✓	LOS51890M	LOS	Elijah †		02/10/2015	47 mo	Old age, natural death	♂
✓	LOS52841M	LOS	Rocket †		02/06/2018	21 mo	Undetermined cause	♂
✓	LOS40835M	LOS	Sirius †	Désir	12/06/2014	33 mo	Old age, natural death	♂
✓	LOS40837M	LOS	Nestlé †	Plaisir	12/06/2014	24 mo	Undetermined tumor	♂
✓	LOS21628F	LOS	Baggera †		14/03/2009	35 mo	Old age, natural death	♀
✓	LOS40838M	LOS	Bulbizarre †	Charme	12/06/2014	22 mo	Undetermined cause	♂
✓	LOS38618M	LOS	Gaspard †		15/12/2013	22 mo	Undetermined tumor	♂