MIL – Millo & cie 

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Statistics

Breeding statistics

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

Declared litters	77 litters, 670 pups
⨽ internal (born in the rattery)	⨽ 64 litters, 537 pups
⨽ external (other contributed litters)	⨽ 13 litters, 133 pups

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

Litter statistics

Average mother age	227 days (7.5 months)
Average father age	444 days (14.5 months)
Average litter size	8.7 pups per litter
Average sex ratio	0.956 (about 1 female for 1 male)

Lifespan statistics

Bred rats recorded as deceased	334 rats (62.8 % of recorded bred rats)
⨽ declared with known date	⨽ 307 rats (91.9 %)
⨽ presumed dead	⨽ 27 rats (8.1 %)

Average lifespan of bred rats	21.9 months (♀: 23 months – ♂: 20.8 months)
⨽ infant mortality excluded	⨽ 21.9 months (♀: 23 months – ♂: 20.8 months)
⨽ accidents excluded	⨽ 22.6 months (♀: 23.7 months – ♂: 21.4 months)

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

Death causes statistics

Primary death causes by decreasing frequency

21.17 %	Old age, natural death (from 24 month old minimum)
21.17 %	Respiratory
11.73 %	Other
11.4 %	Unknown cause
8.47 %	Neurological (brain, spinal cords, nerves)
6.84 %	Eye, ear, mouth, face
6.84 %	Accidents, traumas, poisonings
5.21 %	Reproductive system
3.26 %	Cardiovascular
2.28 %	Digestive
0.65 %	Urinary system (kidney, bladder)
0.65 %	Skin
0.33 %	Muscles and skeleton

Secondary death causes by decreasing frequency

21.17 %	*Old age, natural death (from 24 month old minimum)
17.26 %	Bronchitis, pneumonia
11.4 %	Undetermined cause (known date)
4.56 %	Mammary tumor
3.58 %	Undetermined tumor (affected organ unknown)
3.26 %	Pituitary tumor
3.26 %	*Respiratory
2.61 %	Stroke
2.61 %	Facial tumor (excluding Zymbal tumor)
2.61 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
2.28 %	Generalized cancer, leukemia, lymphoma
1.95 %	Zymbal gland tumor
1.63 %	Undetermined infection or abscess
1.63 %	Virus, epidemic outbreak, immune deficiency (SDA, Sendai, Tyzzer...)
1.63 %	Heart attack, infarct, pulmonary embolism
1.63 %	*Neurological (brain, spinal cords, nerves)
1.3 %	Digestive tumor (stomach, liver, pancreas, intestines...)
1.3 %	Suffocation, choking
1.3 %	*Other
0.98 %	Hemorrhage (exaggerated relative to the context, coagulation disorder, hemophilia)
0.98 %	Domestic accident (crush, door...)
0.98 %	Veterinary accident (anesthesia during a minor operation, medical error, etc.)
0.65 %	Facial abscess (excluding teeth and Zymbal gland)
0.65 %	Other tumor (salivary, spleen, adrenal, thyroid...)
0.65 %	Urinary or kidney infection
0.65 %	Other heart or vascular problem
0.65 %	Complications of gestation or parturition
0.65 %	Tooth abscess
0.65 %	*Digestive
0.33 %	Other accident or trauma
0.33 %	Dental malocclusion
0.33 %	Pulmonary edema
0.33 %	Falls, fractures, head or spinal cord trauma (excluding fights)
0.33 %	Lung tumor
0.33 %	Progressive spinal cord damage, degenerative paralysis
0.33 %	Retro-orbital abscess
0.33 %	Liver failure
0.33 %	Brain tumor
0.33 %	Subcutaneous abscess
0.33 %	Brain infection, encephalitis, meningitis
0.33 %	Bone tumor
0.33 %	Sepsis
0.33 %	Other known cause fitting no other category
0.33 %	*Skin
0.33 %	*Eye, ear, mouth, face
0.33 %	*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
✓	25/06/2024	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
✓	08/04/2024	VIC Gertrude	MIL Alcatraz	12

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	MIL60285M	MIL	Capitaine		08/04/2023	24 mo	– alive –	♂
✓	MIL61127M	MIL	Arakis		24/10/2024	6 mo	– alive –	♂
✓	MIL58949F	MIL	Aura †		22/10/2023	13 mo	Generalized cancer, etc.	♀
✓	MIL59584F	MIL	Célestine †		02/02/2023	24 mo	Facial tumor	♀
✓	MIL61122F	MIL	Anya		24/10/2024	6 mo	– alive –	♀
✓	MIL61123F	MIL	Vick		24/10/2024	6 mo	– alive –	♀
✓	MIL61124F	MIL	Carli †		24/10/2024	1 mo	Accidents, traumas, etc.	♀
✓	MIL61125M	MIL	Hunter		24/10/2024	6 mo	– alive –	♂
✓	MIL61126F	MIL	Leks		24/10/2024	6 mo	– alive –	♀
✓	MIL61128M	MIL	Zeus		26/09/2024	6 mo	– alive –	♂