IKR – Les Ikérats  ☾

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Statistics

Breeding statistics

Breeding activity period	2014–2020 (6 years, 1 month)

Declared litters	15 litters, 140 pups
⨽ internal (born in the rattery)	⨽ 13 litters, 129 pups
⨽ external (other contributed litters)	⨽ 2 litters, 11 pups

All rat records	140 rats
⨽ females	⨽ 67 females (47.9 %)
⨽ males	⨽ 73 males (52.1 %)

Litter statistics

Average mother age	230 days (7.5 months)
Average father age	506 days (16.6 months)
Average litter size	9.3 pups per litter
Average sex ratio	1.09 (about 12 males for 11 females)

Lifespan statistics

Bred rats recorded as deceased	115 rats (89.1 % of recorded bred rats)
⨽ declared with known date	⨽ 93 rats (80.9 %)
⨽ presumed dead	⨽ 22 rats (19.1 %)

Average lifespan of bred rats	22 months (♀: 21.5 months – ♂: 22.4 months)
⨽ infant mortality excluded	⨽ 23 months (♀: 22.6 months – ♂: 23.3 months)
⨽ accidents excluded	⨽ 23.2 months (♀: 22.7 months – ♂: 23.5 months)

Oldest bred rat	IKR Thundra (deceased at 3 years, 2 months, 23 days)

Death causes statistics

Primary death causes by decreasing frequency

33.33 %	Other
20.43 %	Old age, natural death (from 24 month old minimum)
16.13 %	Respiratory
9.68 %	Neurological (brain, spinal cords, nerves)
9.68 %	Unknown cause
4.3 %	Infant mortality (up to 6 week old)
2.15 %	Urinary system (kidney, bladder)
2.15 %	Accidents, traumas, poisonings
1.08 %	Reproductive system
1.08 %	Cardiovascular

Secondary death causes by decreasing frequency

26.88 %	Undetermined tumor (affected organ unknown)
20.43 %	*Old age, natural death (from 24 month old minimum)
12.9 %	*Respiratory
9.68 %	Undetermined cause (known date)
7.53 %	Stroke
4.3 %	Undetermined infection or abscess
3.23 %	Bronchitis, pneumonia
2.15 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
2.15 %	*Neurological (brain, spinal cords, nerves)
2.15 %	*Other
2.15 %	*Infant mortality (up to 6 week old)
1.08 %	Heart attack, infarct, pulmonary embolism
1.08 %	Stillborn
1.08 %	Lack of milk
1.08 %	Kidney tumor
1.08 %	Renal failure
1.08 %	Mammary tumor

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	11/08/2020	IKR Gamma	ETR Dylan	14
✓	18/12/2019	IKR Helix Nebula	IKR Deku	13
✓	20/11/2019	TWR Katmandou	IKR Magneto	10
✓	02/02/2019	IKR Hypernova	IRD-SAE Tycho Moon	6
✓	08/05/2018	IKR Pandora 42	ETR Godric	14
✓	02/12/2017	ETR Haley	IKR Polaris	11
✓	11/10/2017	IKR Supernova	IKR Tardis	12
✓	07/09/2017	ARP-DEL Hitomi Astro-H	IKR Tardis	13
✓	25/02/2017	ETR-IKR Galaxy	IKR Prometheus	11
✓	24/06/2016	IKR Rhea	ETR Mulle Murbruk	8

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	IKR43609M	IKR	Deep Space Nine †		19/04/2015	20 mo	Heart attack, etc.	♂
✓	IKR40526M	IKR	Drakkar †		27/06/2014	19 mo	Kidney tumor	♂
✓	IKR43602F	IKR	Aliacensis †		19/04/2015	18 mo	Mammary tumor	♀
✓	IKR53512F	IKR	Wampa †		18/12/2019	10 mo	Undetermined infection or abscess	♀
✓	IKR54556F	IKR	Hammerhead		11/08/2020	51 mo	– alive –	♀
✓	IKR54557F	IKR	Baby Doll		11/08/2020	51 mo	– alive –	♀
✓	IKR54558F	IKR	Lucy Fugue		11/08/2020	51 mo	– alive –	♀
✓	IKR54559F	IKR	Baphomet The Oracle		11/08/2020	51 mo	– alive –	♀
✓	IKR54560F	IKR	Silver Tongue		11/08/2020	51 mo	– alive –	♀
✓	IKR54561F	IKR	Crazy Jane		11/08/2020	51 mo	– alive –	♀