LRA – Les Rats Adorables  ☾

Statistics

Breeding statistics

Breeding activity period	2009 (7 months, 2 weeks, 4 days)

Declared litters	2 litters, 22 pups
⨽ internal (born in the rattery)	⨽ 2 litters, 22 pups
⨽ external (other contributed litters)	⨽ 0 litter, no pup

All rat records	22 rats
⨽ females	⨽ 10 females (45.5 %)
⨽ males	⨽ 12 males (54.5 %)

Litter statistics

Average mother age	210 days (6.9 months)
Average father age	417 days (13.7 months)
Average litter size	11 pups per litter
Average sex ratio	1.2 (about 6 males for 5 females)

Lifespan statistics

Bred rats recorded as deceased	22 rats (100 % of recorded bred rats)
⨽ declared with known date	⨽ 17 rats (77.3 %)
⨽ presumed dead	⨽ 5 rats (22.7 %)

Average lifespan of bred rats	21.2 months (♀: 26.5 months – ♂: 16.5 months)
⨽ infant mortality excluded	⨽ 21.2 months (♀: 26.5 months – ♂: 16.5 months)
⨽ accidents excluded	⨽ 25.1 months (♀: 29.3 months – ♂: 20.4 months)

Oldest bred rat	LRA-LRL Lila (deceased at 3 years, 12 days)

Death causes statistics

Primary death causes by decreasing frequency

29.41 %	Other
23.53 %	Old age, natural death (from 24 month old minimum)
23.53 %	Unknown cause
23.53 %	Accidents, traumas, poisonings

Secondary death causes by decreasing frequency

29.41 %	Undetermined tumor (affected organ unknown)
23.53 %	Undetermined cause (known date)
23.53 %	*Old age, natural death (from 24 month old minimum)
11.76 %	Domestic accident (crush, door...)
11.76 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	31/08/2009	LRA-LRL Lila	LRL Crumble	12
✓	13/01/2009	IND Lola	IND Yoda	10

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	LRA15586M	LRA-LRL	Yaka †		13/01/2009	7 mo	Domestic accident	♂
✓	LRA15588M	LRA-LRL	Yoko †		13/01/2009	7 mo	Domestic accident	♂
✓	LRA15603F	LRA	Lana †		31/08/2009	33 mo	Old age, natural death	♀
✓	LRA15420F	LRA	Lolita †	Loly	31/08/2009	26 mo	Undetermined tumor	♀
✓	LRA15419F	LRA-LRL	Lila †	Dumbo	13/01/2009	36 mo	Old age, natural death	♀
✓	LRA15593F	LRA-LRL	Louna †		13/01/2009	34 mo	Old age, natural death	♀
✓	LRA15596M	LRA	Calinou †		31/08/2009	26 mo	Old age, natural death	♂
✓	LRA15595M	LRA	Caliméro †		31/08/2009	– ?? –	No information	♂
✓	LRA15647F	LRA	Cannelle †		31/08/2009	24 mo	Undetermined cause	♀
✓	LRA15422F	LRA	Loutchia †	Loutchy, Loute	31/08/2009	23 mo	Undetermined cause	♀