Guide · demo-live · structured-reference
Rat Genetics and Breeding Records
Last checked: · 049-Rev3-L (reference-reported)
Direct answer
Rat genetics should be read as inherited values rather than one impressive average. The reference describes paired values for growth, litter size, immunity, health, lifespan, hunger and fertility; its breeding examples are community models, not guaranteed litter outcomes.
Track both values and one goal
Record each parent's two values for the trait being selected, then inspect offspring before retaining them. An average can hide a strong inherited value alongside a weak one. Keep the selected carriers labeled so a useful breeder is not confused with sale or harvest stock.
| Reported traits | Growth; litter size; immunity; health; lifespan; hunger; fertility |
|---|---|
| Direction exception | Lower Hunger Rate is favorable |
Do not turn a model into a promise
A simplified four-combination inheritance example can illustrate selection, but it does not guarantee one desired offspring in every four births. Health, feeding and the actual game implementation remain relevant. The cited community reference explicitly distinguishes simulation advice from reproduced current-save tests; no fixed optimal cage ratio is asserted here.