EAM – Erratum  ☾

Statistics

Breeding statistics

Breeding activity period	2010–2012 (2 years, 7 months)

Declared litters	4 litters, 35 pups
⨽ internal (born in the rattery)	⨽ 2 litters, 18 pups
⨽ external (other contributed litters)	⨽ 2 litters, 17 pups

All rat records	35 rats
⨽ females	⨽ 19 females (54.3 %)
⨽ males	⨽ 16 males (45.7 %)

Litter statistics

Average mother age	223 days (7.3 months)
Average father age	444 days (14.5 months)
Average litter size	8.8 pups per litter
Average sex ratio	0.842 (about 6 females for 5 males)

Lifespan statistics

Bred rats recorded as deceased	31 rats (100 % of recorded bred rats)
⨽ declared with known date	⨽ 21 rats (67.7 %)
⨽ presumed dead	⨽ 10 rats (32.3 %)

Average lifespan of bred rats	29.2 months (♀: 29.2 months – ♂: 29.2 months)
⨽ infant mortality excluded	⨽ 29.2 months (♀: 29.2 months – ♂: 29.2 months)
⨽ accidents excluded	⨽ 29.4 months (♀: 29.5 months – ♂: 29.2 months)

Oldest bred rat	EAM Chance (deceased at 3 years, 5 months, 9 days)

Death causes statistics

Primary death causes by decreasing frequency

61.9 %	Old age, natural death (from 24 month old minimum)
9.52 %	Unknown cause
9.52 %	Other
4.76 %	Respiratory
4.76 %	Urinary system (kidney, bladder)
4.76 %	Accidents, traumas, poisonings
4.76 %	Reproductive system

Secondary death causes by decreasing frequency

61.9 %	*Old age, natural death (from 24 month old minimum)
9.52 %	Undetermined cause (known date)
9.52 %	Undetermined tumor (affected organ unknown)
4.76 %	Bronchitis, pneumonia
4.76 %	Renal failure
4.76 %	Domestic accident (crush, door...)
4.76 %	Uterus infection (metritis, pyometra)

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	01/09/2012	SOS Amérique	SOS Gus	3
✓	23/06/2011	IND Caprice	EAM Petit Lu	9
✓	21/06/2010	EAM Elwing	IND Tofu	14
✓	12/01/2010	IND Kywitt	IND Petit Suisse	9

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	EAM26517M	EAM	Chance †		23/06/2011	41 mo	Old age, natural death	♂
✓	EAM26516M	EAM	P'tit Sablé †		23/06/2011	38 mo	Old age, natural death	♂
✓	EAM21504F	EAM	Flèche †		21/06/2010	37 mo	Old age, natural death	♀
✓	EAM26518F	EAM	Brisby †		23/06/2011	21 mo	Undetermined tumor	♀
✓	EAM21496F	EAM	Neferou †		12/01/2010	37 mo	Old age, natural death	♀
✓	EAM21505F	EAM	Delilah †		21/06/2010	32 mo	Old age, natural death	♀
✓	EAM21528M	EAM	Spritz †		21/06/2010	31 mo	Old age, natural death	♂
✓	EAM21518F	EAM	Yumi †		21/06/2010	23 mo	Undetermined tumor	♀
✓	EAM21519F	EAM	Saya †		21/06/2010	22 mo	Undetermined cause	♀
✓	EAM21497F	EAM	Berska †		12/01/2010	29 mo	Old age, natural death	♀