MIL – Millo & cie 

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Statistics

Breeding statistics

Breeding activity period	2019–2025 (5 years, 10 months)

Declared litters	78 litters, 673 pups
⨽ internal (born in the rattery)	⨽ 64 litters, 537 pups
⨽ external (other contributed litters)	⨽ 14 litters, 136 pups

All rat records	663 rats
⨽ females	⨽ 339 females (51.1 %)
⨽ males	⨽ 324 males (48.9 %)

Litter statistics

Average mother age	228 days (7.5 months)
Average father age	447 days (14.7 months)
Average litter size	8.6 pups per litter
Average sex ratio	0.956 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	340 rats (63.9 % of recorded bred rats)
⨽ declared with known date	⨽ 313 rats (92.1 %)
⨽ presumed dead	⨽ 27 rats (7.9 %)

Average lifespan of bred rats	22 months (♀: 23 months – ♂: 20.9 months)
⨽ infant mortality excluded	⨽ 22 months (♀: 23 months – ♂: 20.9 months)
⨽ accidents excluded	⨽ 22.7 months (♀: 23.8 months – ♂: 21.5 months)

Oldest bred rat	MIL-VIC Extremis (deceased at 3 years, 6 months, 14 days)

Death causes statistics

Primary death causes by decreasing frequency

21.41 %	Respiratory
20.77 %	Old age, natural death (from 24 month old minimum)
11.82 %	Unknown cause
11.5 %	Other
8.63 %	Neurological (brain, spinal cords, nerves)
6.71 %	Eye, ear, mouth, face
6.71 %	Accidents, traumas, poisonings
5.43 %	Reproductive system
3.19 %	Cardiovascular
2.24 %	Digestive
0.64 %	Urinary system (kidney, bladder)
0.64 %	Skin
0.32 %	Muscles and skeleton

Secondary death causes by decreasing frequency

20.77 %	*Old age, natural death (from 24 month old minimum)
17.25 %	Bronchitis, pneumonia
11.82 %	Undetermined cause (known date)
4.79 %	Mammary tumor
3.51 %	Pituitary tumor
3.51 %	Undetermined tumor (affected organ unknown)
3.51 %	*Respiratory
2.56 %	Stroke
2.56 %	Facial tumor (excluding Zymbal tumor)
2.56 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
2.24 %	Generalized cancer, leukemia, lymphoma
1.92 %	Zymbal gland tumor
1.6 %	Heart attack, infarct, pulmonary embolism
1.6 %	Undetermined infection or abscess
1.6 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.6 %	*Neurological (brain, spinal cords, nerves)
1.28 %	Digestive tumor (stomach, liver, pancreas, intestines...)
1.28 %	Suffocation, choking
1.28 %	*Other
0.96 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
0.96 %	Hemorrhage (exaggerated relative to the context, coagulation disorder, hemophilia)
0.96 %	Domestic accident (crush, door...)
0.64 %	Complications of gestation or parturition
0.64 %	Tooth abscess
0.64 %	Facial abscess (excluding teeth and Zymbal gland)
0.64 %	Other tumor (salivary, spleen, adrenal, thyroid...)
0.64 %	Urinary or kidney infection
0.64 %	Other heart or vascular problem
0.64 %	*Digestive
0.32 %	Brain infection, encephalitis, meningitis
0.32 %	Bone tumor
0.32 %	Sepsis
0.32 %	Other known cause fitting no other category
0.32 %	Other accident or trauma
0.32 %	Dental malocclusion
0.32 %	Pulmonary edema
0.32 %	Falls, fractures, head or spinal cord trauma (excluding fights)
0.32 %	Lung tumor
0.32 %	Progressive spinal cord damage, degenerative paralysis
0.32 %	Retro-orbital abscess
0.32 %	Liver failure
0.32 %	Brain tumor
0.32 %	Subcutaneous abscess
0.32 %	*Skin
0.32 %	*Eye, ear, mouth, face
0.32 %	*Accidents, traumas, poisonings

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✗	04/04/2025	MIL Narissa	MGR-MIL Naos	12
✓	24/10/2024	MIL Elone	MIL-VIC Monarque	10
✓	27/09/2024	IND Brona	MIL Glyde	10
✓	26/09/2024	ANG-MIL Ayla	MIL Echo	11
✓	25/08/2024	MGR-MIL Flora	VIC Tyrell	3
✓	25/06/2024	DEL The Secret of MIMH	MIL Alcatraz	12
✓	18/06/2024	MIL Nocturne	MIL Lemon	10
✓	04/06/2024	MIL Aura	RB. Largo	13
✓	22/05/2024	RB. Linea	RB. Cortex	14
✓	23/04/2024	MIL-VIC Salina	MIL Neptune	18

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	MIL59972F	MIL-LPM	S'Kive †	S'Kive	07/12/2022	27 mo	Pituitary tumor	♀
✓	MIL57588F	MIL	Snow †		25/09/2022	32 mo	Mammary tumor	♀
✓	MIL58824F	MIL	Reyna †		12/07/2023	23 mo	Undetermined cause	♀
✓	MIL58262F	MIL	Sellen †		03/05/2023	24 mo	Respiratory	♀
✓	MIL60285M	MIL	Capitaine †		08/04/2023	25 mo	Undetermined cause	♂
✓	MIL57591M	MIL	Oceans of Time †		04/05/2022	36 mo	Old age, natural death	♂
✓	MIL60468M	MIL	Joker †		09/09/2023	20 mo	Bronchitis, pneumonia	♂
✓	MIL59868M	MIL	Clyde		08/04/2024	14 mo	– alive –	♂
✓	MIL59802M	MIL	Caïn		08/04/2024	14 mo	– alive –	♂
✓	MIL59801M	MIL	Judas		08/04/2024	14 mo	– alive –	♂