MIL – Millo & cie 

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Statistics

Breeding statistics

Breeding activity period	2019–2025 (6 years, 3 months)

Declared litters	86 litters, 750 pups
⨽ internal (born in the rattery)	⨽ 70 litters, 592 pups
⨽ external (other contributed litters)	⨽ 16 litters, 158 pups

All rat records	740 rats
⨽ females	⨽ 372 females (50.3 %)
⨽ males	⨽ 368 males (49.7 %)

Litter statistics

Average mother age	227 days (7.4 months)
Average father age	444 days (14.6 months)
Average litter size	8.7 pups per litter
Average sex ratio	0.989 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	378 rats (64.4 % of recorded bred rats)
⨽ declared with known date	⨽ 350 rats (92.6 %)
⨽ presumed dead	⨽ 28 rats (7.4 %)

Average lifespan of bred rats	21.7 months (♀: 22.9 months – ♂: 20.5 months)
⨽ infant mortality excluded	⨽ 21.7 months (♀: 22.9 months – ♂: 20.5 months)
⨽ accidents excluded	⨽ 22.3 months (♀: 23.6 months – ♂: 21.1 months)

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

Death causes statistics

Primary death causes by decreasing frequency

22.57 %	Respiratory
19.14 %	Old age, natural death (from 24 month old minimum)
12.57 %	Unknown cause
11.14 %	Other
8.86 %	Neurological (brain, spinal cords, nerves)
7.14 %	Eye, ear, mouth, face
6 %	Accidents, traumas, poisonings
5.14 %	Reproductive system
3.14 %	Cardiovascular
2.57 %	Digestive
0.57 %	Urinary system (kidney, bladder)
0.57 %	Skin
0.57 %	Muscles and skeleton

Secondary death causes by decreasing frequency

19.14 %	*Old age, natural death (from 24 month old minimum)
18.57 %	Bronchitis, pneumonia
12.57 %	Undetermined cause (known date)
4.57 %	Mammary tumor
3.43 %	Pituitary tumor
3.14 %	Undetermined tumor (affected organ unknown)
3.14 %	*Respiratory
2.57 %	Stroke
2.29 %	Facial tumor (excluding Zymbal tumor)
2.29 %	Generalized cancer, leukemia, lymphoma
2.29 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
1.71 %	Zymbal gland tumor
1.71 %	Heart attack, infarct, pulmonary embolism
1.71 %	*Neurological (brain, spinal cords, nerves)
1.43 %	Undetermined infection or abscess
1.43 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.14 %	Digestive tumor (stomach, liver, pancreas, intestines...)
1.14 %	Suffocation, choking
1.14 %	*Other
0.86 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
0.86 %	Facial abscess (excluding teeth and Zymbal gland)
0.86 %	Other tumor (salivary, spleen, adrenal, thyroid...)
0.86 %	Hemorrhage (exaggerated relative to the context, coagulation disorder, hemophilia)
0.86 %	Domestic accident (crush, door...)
0.86 %	*Digestive
0.57 %	Tooth abscess
0.57 %	Other heart or vascular problem
0.57 %	Sepsis
0.57 %	Dental malocclusion
0.57 %	Urinary or kidney infection
0.57 %	Brain infection, encephalitis, meningitis
0.57 %	Complications of gestation or parturition
0.57 %	*Eye, ear, mouth, face
0.29 %	Otitis, ear abscess
0.29 %	Other accident or trauma
0.29 %	Bone tumor
0.29 %	Pulmonary edema
0.29 %	Other known cause fitting no other category
0.29 %	Falls, fractures, head or spinal cord trauma (excluding fights)
0.29 %	Digestive hemorrhage
0.29 %	Lung tumor
0.29 %	Progressive spinal cord damage, degenerative paralysis
0.29 %	Retro-orbital abscess
0.29 %	Brain tumor
0.29 %	Joint or bone infection, septic arthritis
0.29 %	Liver failure
0.29 %	Subcutaneous abscess
0.29 %	Other respiratory trouble
0.29 %	*Skin
0.29 %	*Accidents, traumas, poisonings

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	08/08/2025	RB. Imara	MIL Dave	10
✓	29/07/2025	RMS-MGR Mercredi	MIL-VIC Shogoun	10
✓	19/07/2025	MIL Pivoine	VIC Lazar	8
✓	19/07/2025	MIL Pahara	MIL-VIC Poussifeu	8
✓	18/05/2025	MIL Melusine	MIL Finilac	8
✓	13/05/2025	MIL Eteria	MGR Arald	14
✓	04/04/2025	MIL Narissa	MGR-MIL Naos	12
✓	26/03/2025	RB. Imara	MIL Tiplouf	7
✓	24/10/2024	MIL Elone	MIL-VIC Monarque	10
✓	27/09/2024	IND Brona	MIL Glyde	10

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	MIL60993M	MIL	Pat'Hibulaire		26/09/2024	16 mo	– alive –	♂
✓	MIL62099M	MIL	Klim †		08/08/2025	5 mo	Sepsis	♂
✓	MIL61543M	MIL-VIC	Poussifeu		26/03/2025	10 mo	– alive –	♂
✓	MIL62098F	MIL	Eve		08/08/2025	6 mo	– alive –	♀
✓	MIL62094M	MIL	Carlos		19/07/2025	6 mo	– alive –	♂
✓	MIL62093M	MIL	Sexton		19/07/2025	6 mo	– alive –	♂
✓	MIL62092F	MIL	Bonnie		19/07/2025	6 mo	– alive –	♀
✓	MIL62091F	MIL	Beca		19/07/2025	6 mo	– alive –	♀
✓	MIL62090F	MIL	Orora		19/07/2025	6 mo	– alive –	♀
✓	MIL62089F	MIL	Freya		19/07/2025	6 mo	– alive –	♀