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 1,507 rats
 ⨽ females  ⨽ 787 females (52.2 %)
 ⨽ males  ⨽ 720 males (47.8 %)

Lifespan statistics

Rats recorded as deceased 1,425 rats (94.6 % of recorded rats)
 ⨽ declared with known date  ⨽ 717 rats (50.3 %)
 ⨽ presumed dead  ⨽ 708 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)