IRD – Les irradiés  ☾

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Statistics

Breeding statistics

Breeding activity period	2013–2017 (4 years)

Declared litters	5 litters, 66 pups
⨽ internal (born in the rattery)	⨽ 4 litters, 53 pups
⨽ external (other contributed litters)	⨽ 1 litter, 13 pups

All rat records	66 rats
⨽ females	⨽ 27 females (40.9 %)
⨽ males	⨽ 39 males (59.1 %)

Litter statistics

Average mother age	206 days (6.7 months)
Average father age	508 days (16.7 months)
Average litter size	13.2 pups per litter
Average sex ratio	1.444 (about 13 males for 9 females)

Lifespan statistics

Bred rats recorded as deceased	53 rats (100 % of recorded bred rats)
⨽ declared with known date	⨽ 28 rats (52.8 %)
⨽ presumed dead	⨽ 25 rats (47.2 %)

Average lifespan of bred rats	22.8 months (♀: 25.6 months – ♂: 21 months)
⨽ infant mortality excluded	⨽ 22.8 months (♀: 25.6 months – ♂: 21 months)
⨽ accidents excluded	⨽ 23.3 months (♀: 25.6 months – ♂: 21.8 months)

Oldest bred rat	IRD Syrah (deceased at 3 years, 2 months, 16 days)

Death causes statistics

Primary death causes by decreasing frequency

25 %	Old age, natural death (from 24 month old minimum)
21.43 %	Unknown cause
14.29 %	Other
10.71 %	Respiratory
10.71 %	Neurological (brain, spinal cords, nerves)
7.14 %	Eye, ear, mouth, face
3.57 %	Urinary system (kidney, bladder)
3.57 %	Accidents, traumas, poisonings
3.57 %	Skin

Secondary death causes by decreasing frequency

25 %	*Old age, natural death (from 24 month old minimum)
21.43 %	Undetermined cause (known date)
10.71 %	Undetermined tumor (affected organ unknown)
7.14 %	Bronchitis, pneumonia
7.14 %	Otitis, ear abscess
3.57 %	Kidney tumor
3.57 %	Domestic accident (crush, door...)
3.57 %	Stroke
3.57 %	Epilepsy
3.57 %	*Respiratory
3.57 %	*Skin
3.57 %	*Other
3.57 %	*Neurological (brain, spinal cords, nerves)

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	12/09/2017	IND Alladin Sane	IRD Samson	12
✓	25/12/2016	IRD Princesse Mononoke	CRV-PVC Dr Gabs	13
✓	12/06/2016	LVM Ziggy Stardust	IRD Aslan	12
✓	26/12/2014	RLR Sailor Moon	IRD Marcel	14
✓	18/08/2013	IND Bulle	IND Nagato	15

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	IRD36331M	IRD	Sapeur Camember †	Angus Young	18/08/2013	25 mo	Kidney tumor	♂
✓	IRD49802M	IRD-SAE	Tycho Moon †	Bricelet	12/09/2017	27 mo	Undetermined cause	♂
✓	IRD46975F	IRD	Princesse Mononoke †	Morgenstern	12/06/2016	24 mo	Undetermined tumor	♀
✓	IRD46984M	IRD	Ulysse †	Weisses Fleisch	12/06/2016	23 mo	Undetermined cause	♂
✓	IRD46980M	IRD	Mogoï †	Bückstabü	12/06/2016	20 mo	Undetermined tumor	♂
✓	IRD46978M	IRD	Samson †	Spiel mit mir	12/06/2016	– ?? –	No information	♂
✓	IRD49803M	IRD-SAE	Mille-feuille †		12/09/2017	4 mo	Epilepsy	♂
✓	IRD49815M	IRD-SAE	Nougat †	Kougelhopf	12/09/2017	– ?? –	No information	♂
✓	IRD49816M	IRD-SAE	Caramel †	Bretzel	12/09/2017	– ?? –	No information	♂
✓	IRD49804M	IRD-SAE	Ludwig †	Carac	12/09/2017	– ?? –	No information	♂