LMM – Raterie La Maison MRDoo 

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Statistics

Breeding statistics

Breeding activity period	2021–2024 (3 years, 1 month)

Declared litters	4 litters, 17 pups
⨽ internal (born in the rattery)	⨽ 4 litters, 17 pups
⨽ external (other contributed litters)	⨽ 0 litter, no pup

All rat records	22 rats
⨽ females	⨽ 7 females (31.8 %)
⨽ males	⨽ 15 males (68.2 %)

Litter statistics

Average mother age	282 days (9.2 months)
Average father age	551 days (18 months)
Average litter size	4.3 pups per litter
Average sex ratio	2.143 (about 15 males for 7 females)

Lifespan statistics

Bred rats recorded as deceased	10 rats (45.5 % of recorded bred rats)
⨽ declared with known date	⨽ 10 rats (100 %)
⨽ presumed dead	⨽ No rat (0 %)

Average lifespan of bred rats	23 months (♀: 13.4 months – ♂: 25.4 months)
⨽ infant mortality excluded	⨽ 25.5 months (♀: 26.1 months – ♂: 25.4 months)
⨽ accidents excluded	⨽ 25 months (♀: 26.1 months – ♂: 24.8 months)

Oldest bred rat	LMM Pyrite (deceased at 3 years, 28 days)

Death causes statistics

Primary death causes by decreasing frequency

30 %	Other
20 %	Unknown cause
10 %	Infant mortality (up to 6 week old)
10 %	Old age, natural death (from 24 month old minimum)
10 %	Urinary system (kidney, bladder)
10 %	Accidents, traumas, poisonings
10 %	Cardiovascular

Secondary death causes by decreasing frequency

20 %	Undetermined tumor (affected organ unknown)
20 %	Undetermined cause (known date)
10 %	Urethral obstruction, urinary retention, stones
10 %	Other tumor (salivary, spleen, adrenal, thyroid...)
10 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
10 %	Heart attack, infarct, pulmonary embolism
10 %	*Old age, natural death (from 24 month old minimum)
10 %	*Infant mortality (up to 6 week old)

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	11/02/2024	IND Rachel	LMM Ackerman	9
♺	04/09/2023	IND Lushiita	LMM Gomez	12
✓	06/01/2023	INC Hayley	LMM Boo	4
✓	24/12/2022	LMM Freyja	LMM Boo	3
♺	21/07/2022	LMM Freyja	LMM Boo	13
✗	15/06/2022	INC Hayley	IND Onizuka	15
♺	29/04/2022	IND Vi	LMM Asmar	9
✓	05/10/2021	IND Vi	INC Ryuk	1
♺	19/02/2021	IND Eywa	IND Balou	12
♺	02/02/2021	IND Azusa	IND No Name	12

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	LMM59549M	LMM	Julien		15/06/2022	29 mo	– alive –	♂
✗	LMM59550M	LMM	Gilroy †		15/06/2022	29 mo	Other heart or vascular problem	♂
✓	LMM58860M	LMM	Gomez †		29/04/2022	30 mo	Fights, injuries, etc.	♂
✓	LMM58345M	LMM	Conny †		21/07/2022	22 mo	Undetermined cause	♂
✓	LMM59773F	LMM	Miyabi	Miyabi	04/09/2023	15 mo	– alive –	♀
✓	LMM59774F	LMM	Grany	Julia	04/09/2023	15 mo	– alive –	♀
✓	LMM59772F	LMM	Anko	Anko	04/09/2023	15 mo	– alive –	♀
✓	IND58341M	LMM	Jäger		24/12/2022	23 mo	– alive –	♂
✓	LMM58346M	LMM	Ackerman		24/12/2022	23 mo	– alive –	♂
✓	LMM59771F	LMM	Louane †		11/02/2024	1 mo	Infant mortality	♀