MDR – Les modiRATeurs  ☾

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Statistics

Breeding statistics

Breeding activity period	2006–2016 (9 years, 8 months)

Declared litters	24 litters, 167 pups
⨽ internal (born in the rattery)	⨽ 17 litters, 123 pups
⨽ external (other contributed litters)	⨽ 7 litters, 44 pups

All rat records	167 rats
⨽ females	⨽ 91 females (54.5 %)
⨽ males	⨽ 76 males (45.5 %)

Litter statistics

Average mother age	233 days (7.7 months)
Average father age	412 days (13.5 months)
Average litter size	7 pups per litter
Average sex ratio	0.835 (about 6 females for 5 males)

Lifespan statistics

Bred rats recorded as deceased	123 rats (100 % of recorded bred rats)
⨽ declared with known date	⨽ 66 rats (53.7 %)
⨽ presumed dead	⨽ 57 rats (46.3 %)

Average lifespan of bred rats	25.9 months (♀: 27.3 months – ♂: 24.4 months)
⨽ infant mortality excluded	⨽ 25.9 months (♀: 27.3 months – ♂: 24.4 months)
⨽ accidents excluded	⨽ 26.8 months (♀: 27.8 months – ♂: 25.7 months)

Oldest bred rat	MDR Sheldon (deceased at 3 years, 5 months, 2 days)

Death causes statistics

Primary death causes by decreasing frequency

31.82 %	Other
27.27 %	Old age, natural death (from 24 month old minimum)
10.61 %	Neurological (brain, spinal cords, nerves)
9.09 %	Accidents, traumas, poisonings
7.58 %	Unknown cause
7.58 %	Respiratory
3.03 %	Digestive
1.52 %	Reproductive system
1.52 %	Eye, ear, mouth, face

Secondary death causes by decreasing frequency

27.27 %	*Old age, natural death (from 24 month old minimum)
21.21 %	Undetermined tumor (affected organ unknown)
7.58 %	Undetermined cause (known date)
7.58 %	Stroke
7.58 %	Undetermined infection or abscess
6.06 %	*Respiratory
4.55 %	Domestic accident (crush, door...)
3.03 %	Intestinal obstruction (excluding megacolon)
3.03 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
1.52 %	Zymbal gland tumor
1.52 %	Pituitary tumor
1.52 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.52 %	Vaginal prolapse (excluding tumors and postpartum)
1.52 %	Bronchitis, pneumonia
1.52 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.52 %	*Other
1.52 %	*Neurological (brain, spinal cords, nerves)

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	08/02/2016	MDR Kardyls Hope	DRA-PRZ Zack Fair	1
✓	06/02/2016	MDR Jazz Poem	MDR Ghost Rider	8
✓	05/12/2015	MDR Impérial Lady	MDR Sweeny	11
✓	02/05/2015	DRA-PRZ Funny Cumulus	MDR Casanova di Fredico Fellini	11
✓	02/05/2015	RPM-MDR Happy End	ETR Professor Moriarty	3
✓	08/04/2015	DRA Elwing	ETR Satan Petit Coeur	6
✓	02/04/2015	MDR Ginger Head	MDR Fat Choy Oolala	6
✓	14/01/2015	RST Pocahontas	MDR Fat Choy Oolala	11
✓	04/08/2014	MDR Forest Nymph	MDR Coming Out	7
✓	31/07/2014	ETR Vanille	MDR Allen Shezar	4

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	MDR43766F	MDR	Ibiza Sunset †		02/04/2015	18 mo	Pituitary tumor	♀
✓	MDR41239M	MDR	Gestuga Tensho †	Gestuga Tenshou	29/07/2014	38 mo	Old age, natural death	♂
✓	MDR41238M	MDR	Howard †	Grimmjow Sword	29/07/2014	36 mo	Old age, natural death	♂
✓	MDR41237M	MDR	Léonard †	Gakuten Oh	29/07/2014	37 mo	Old age, natural death	♂
✓	MDR41236M	MDR	Giant Potates †		29/07/2014	24 mo	Undetermined cause	♂
✓	MDR41235M	MDR	Sheldon †	Game Over	29/07/2014	41 mo	Old age, natural death	♂
✓	MDR41232M	MDR	God of Thunder †		29/07/2014	37 mo	Old age, natural death	♂
✓	MDR41230F	MDR	Rhéa †	Glorious Burden	29/07/2014	24 mo	Neurological	♀
✓	MDR41228F	MDR	Gillian's Soul †		29/07/2014	38 mo	Zymbal gland tumor	♀
✓	MDR36629M	MDR	Khaleesi †		20/08/2013	35 mo	Respiratory	♀