HDL – Les Histoires de Lune 

Statistics

Breeding statistics

Breeding activity period	2022–2026 (4 years, 1 month)

Declared litters	17 litters, 175 pups
⨽ internal (born in the rattery)	⨽ 11 litters, 122 pups
⨽ external (other contributed litters)	⨽ 6 litters, 53 pups

All rat records	173 rats
⨽ females	⨽ 91 females (52.6 %)
⨽ males	⨽ 82 males (47.4 %)

Litter statistics

Average mother age	262 days (8.6 months)
Average father age	632 days (20.7 months)
Average litter size	10.3 pups per litter
Average sex ratio	0.919 (about 12 females for 11 males)

Lifespan statistics

Bred rats recorded as deceased	46 rats (37.7 % of recorded bred rats)
⨽ declared with known date	⨽ 41 rats (89.1 %)
⨽ presumed dead	⨽ 5 rats (10.9 %)

Average lifespan of bred rats	19.4 months (♀: 21.6 months – ♂: 17.8 months)
⨽ infant mortality excluded	⨽ 22.1 months (♀: 24.4 months – ♂: 20.4 months)
⨽ accidents excluded	⨽ 23.4 months (♀: 24.4 months – ♂: 22.6 months)

Oldest bred rat	HDL-FAE Cloud (deceased at 2 years, 11 months, 4 days)

Death causes statistics

Primary death causes by decreasing frequency

21.95 %	Respiratory
19.51 %	Neurological (brain, spinal cords, nerves)
14.63 %	Eye, ear, mouth, face
12.2 %	Infant mortality (up to 6 week old)
7.32 %	Accidents, traumas, poisonings
7.32 %	Old age, natural death (from 24 month old minimum)
7.32 %	Other
7.32 %	Reproductive system
2.44 %	Unknown cause

Secondary death causes by decreasing frequency

12.2 %	Bronchitis, pneumonia
9.76 %	Pituitary tumor
7.32 %	Generalized cancer, leukemia, lymphoma
7.32 %	Mammary tumor
7.32 %	*Infant mortality (up to 6 week old)
7.32 %	*Old age, natural death (from 24 month old minimum)
4.88 %	Facial tumor (excluding Zymbal tumor)
4.88 %	Other head or neck related trouble
4.88 %	Other infant mortality cause
4.88 %	*Respiratory
4.88 %	*Neurological (brain, spinal cords, nerves)
2.44 %	Pulmonary edema
2.44 %	Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
2.44 %	Domestic accident (crush, door...)
2.44 %	Dental malocclusion
2.44 %	Facial abscess (excluding teeth and Zymbal gland)
2.44 %	Falls, fractures, head or spinal cord trauma (excluding fights)
2.44 %	Brain tumor
2.44 %	Other neurological trouble
2.44 %	Undetermined cause (known date)
2.44 %	Lung tumor

Related entries

Last contributed litters

See all

State	Birth date	Dam	Sire	Size	Actions
✓	13/05/2026	HPM-RMJ Elena Fuente	HDL Saparazar	8
✓	16/11/2025	HDL Chummee	VGP-HDL Chaud lapin	9
✓	16/11/2025	HDL Chummee	VGP-HDL Chaud lapin	9
✓	02/03/2025	HDL Aaow	HDL-FAE Oups	13
✓	27/02/2025	OPR Mélitée du Mélampyre	HDL Fendi Mercury	5
✓	29/12/2024	HDL Cutie Patootie	HDL Jeff Bouclettes	10
✓	10/12/2024	HDL Sweetie Pie	HDL Fendi Mercury	14
✓	17/07/2024	HDL-TDC Kif-kif	CHC-DNR Smooch Criminal	12
✓	04/05/2024	HDL Tampoufle	DNR Pichu	15
✓	01/11/2023	HDL-ARD Selkie	TDC Ghibli	5

Recently modified rats

See all

State	Identifier	Prefix	Name	Pup Name	Birth	Age	Death cause	Sex	Actions
✓	HDL59746F	HDL	Sarriette †	All the Madness	04/05/2024	23 mo	Undetermined cause	♀
✓	HDL60489M	HDL	Hector †	Hee !	17/07/2024	20 mo	Other head or neck related trouble	♂
✓	HDL61588M	HDL-RMJ	Patatras !		02/03/2025	17 mo	– alive –	♂
✓	HDL61593F	HDL-RMJ	Niark Niark !		02/03/2025	17 mo	– alive –	♀
✓	HDL61363M	HDL	Alakay The Lion	Chiku	29/12/2024	19 mo	– alive –	♂
✓	HDL58687F	HDL	Crocrodile †	Crocrodile	11/09/2023	24 mo	Other neurological trouble	♀
✓	HDL58692F	HDL	Mumière †	Mumière	11/09/2023	30 mo	Old age, natural death	♀
✓	HDL61276M	HDL	Poljubac	An Invitation you can't decline	10/12/2024	19 mo	– alive –	♂
✓	HDL61275M	HDL	Drop of a Hat	Drop of a Hat	10/12/2024	19 mo	– alive –	♂
✓	HDL61277M	HDL	Saparazar	Blow Your Mind	10/12/2024	19 mo	– alive –	♂