Generic origin
Certified

ETR – * Éleveur étranger *

This is a generic prefix. It does not correspond to an actual rattery. Therefore, only limited information is shown.

Statistics

Breeding statistics

Litters recorded under this prefix 516 litters
Rat recorded under this prefix 1,508 rats
 ⨽ females  ⨽ 788 females (52.3 %)
 ⨽ males  ⨽ 720 males (47.7 %)

Lifespan statistics

Rats recorded as deceased 1,430 rats (94.8 % of recorded rats)
 ⨽ declared with known date  ⨽ 719 rats (50.3 %)
 ⨽ presumed dead  ⨽ 711 rats (49.7 %)
Average lifespan of rats with this prefix 25.3 months (♀: 25.3 months – ♂: 25.2 months)
 ⨽ infant mortality excluded  ⨽ 25.3 months (♀: 25.4 months – ♂: 25.2 months)
 ⨽ accidents excluded  ⨽ 25.7 months (♀: 25.8 months – ♂: 25.6 months)