Rattery
Validated

OPR – L'Opéra des P'tites Pensées

Information

Owner Loulouteratoune
Founded in 2014
Country France
Localization Beauvais
Zip Code 60000
Website https://operadespensees.weebly.com/
OPR

About

Sans lieu fixe pour le moment, mais avec au moins des visites régulières dans l’Oise, près de Beauvais, la raterie l’Opéra des P’tites Pensées (OPR) est un élevage amateur familial de rats domestiques à très petite échelle et non lucratif.

Je prône la reproduction réfléchie, argumentée et aussi éthique que possible, avec une approche basée sur la transparence, les connaissances sur l’espèce, des connaissances scientifiques, et sur tout l’amour que je porte à mes animaux. Ceux-ci font partie avant tout de la famille, je tiens à ce que mes ratons soient traités comme tels chez mes adoptants.

Statistics

Breeding statistics
Breeding activity period 2014–2025 (11 years, 2 months)
Declared litters 13 litters, 142 pups
 ⨽ internal (born in the rattery)  ⨽ 13 litters, 142 pups
 ⨽ external (other contributed litters)  ⨽ 0 litter, no pup
All rat records 142 rats
 ⨽ females  ⨽ 67 females (47.2 %)
 ⨽ males  ⨽ 75 males (52.8 %)
Litter statistics
Average mother age 220 days (7.2 months)
Average father age 507 days (16.6 months)
Average litter size 10.9 pups per litter
Average sex ratio 1.119 (about 9 males for 8 females)
Lifespan statistics
Bred rats recorded as deceased 105 rats (73.9 % of recorded bred rats)
 ⨽ declared with known date  ⨽ 100 rats (95.2 %)
 ⨽ presumed dead  ⨽ 5 rats (4.8 %)
Average lifespan of bred rats 24.4 months (♀: 24.7 months – ♂: 24 months)
 ⨽ infant mortality excluded  ⨽ 24.9 months (♀: 25.2 months – ♂: 24.5 months)
 ⨽ accidents excluded  ⨽ 25.5 months (♀: 25.6 months – ♂: 25.4 months)
Oldest bred rat OPR-DOU Cynder (deceased at 3 years, 4 months, 17 days)
Death causes statistics
Primary death causes by decreasing frequency
28 %
Respiratory
17 %
Unknown cause
16 %
Old age, natural death (from 24 month old minimum)
16 %
Neurological (brain, spinal cords, nerves)
5 %
Reproductive system
4 %
Digestive
4 %
Other
3 %
Accidents, traumas, poisonings
3 %
Eye, ear, mouth, face
2 %
Infant mortality (up to 6 week old)
2 %
Cardiovascular
Secondary death causes by decreasing frequency
17 %
Bronchitis, pneumonia
17 %
Undetermined cause (known date)
16 %
*Old age, natural death (from 24 month old minimum)
13 %
Pituitary tumor
5 %
*Respiratory
4 %
Mammary tumor
3 %
Lung tumor
2 %
Fights, injuries, serious bites, subsequent hemorrhage (excluding abnormal hemorrhage)
2 %
Stroke
2 %
Digestive tumor (stomach, liver, pancreas, intestines...)
2 %
Generalized cancer, leukemia, lymphoma
2 %
Pulmonary edema
2 %
Facial tumor (excluding Zymbal tumor)
2 %
*Infant mortality (up to 6 week old)
1 %
Heart failure, valvular disease
1 %
Intestinal obstruction (excluding megacolon)
1 %
Uterine tumor
1 %
Other tumor (salivary, spleen, adrenal, thyroid...)
1 %
Zymbal gland tumor
1 %
Veterinary accident (anesthesia during a minor operation, medical error, etc.)
1 %
Digestive abscess
1 %
Sepsis
1 %
Other respiratory trouble
1 %
*Cardiovascular
1 %
*Neurological (brain, spinal cords, nerves)
— Created on 22/04/2014 by Loulouteratoune. Last modified on 28/07/2025.

Related entries

Last contributed litters
State Birth date Dam Sire Size Actions
13/04/2025 RB. Helldiver OPR Hazbin 7 Edit Litter
27/02/2025 OPR Mélitée du Mélampyre HDL Fendi Mercury 5 Edit Litter
08/09/2024 OPR Mélitée du Mélampyre DEL Othello 8 Edit Litter
15/02/2024 OPR Fizwizbiz LTE Bulby 11 Edit Litter
10/07/2023 OPR On dirait un tout petit bébé Licorne OPR Severus 16 Edit Litter
12/01/2023 DNA-ARK Catch the Wave PRH-RCD Dabou 7 Edit Litter
01/12/2021 CHC Imladris OPR Ood 12 Edit Litter
29/09/2020 RSH Waddiwasi IND Mylo Xyloto 11 Edit Litter
20/07/2019 OPR-MOL Elysia Crispata DOU Childe Roland to the Dark Tower Came 16 Edit Litter
26/01/2019 OPR Minas Tirith DEL-MOL Petit Requin Von Überwald 8 Edit Litter
Recently modified rats
State Identifier Prefix Name Pup Name Birth Age Death cause Sex Actions
OPR50347F OPR Valyria † 20/12/2017 24 mo Bronchitis, pneumonia Edit Rat Declare Death
OPR51164F OPR Minas Tirith † 27/06/2018 29 mo Bronchitis, pneumonia Edit Rat Declare Death
OPR52242F OPR-MOL Elysia Crispata † 26/01/2019 27 mo Pituitary tumor Edit Rat Declare Death
OPR52979F OPR-DOU Trigger-Happy † 20/07/2019 27 mo Bronchitis, pneumonia Edit Rat Declare Death
OPR52243F OPR-MOL Costasiella Kuroshimae † 26/01/2019 38 mo Old age, natural death Edit Rat Declare Death
OPR56188F OPR Once Upon a December † 01/12/2021 25 mo Undetermined cause Edit Rat Declare Death
OPR58421F OPR Fizwizbiz † 10/07/2023 26 mo Bronchitis, pneumonia Edit Rat Declare Death
OPR58426M OPR Chakri † Babioles 10/07/2023 25 mo Neurological Edit Rat Declare Death
OPR59328F OPR Amaryllis † 15/02/2024 15 mo Digestive abscess Edit Rat Declare Death
OPR59334F OPR Diane † 15/02/2024 16 mo Pulmonary edema Edit Rat Declare Death