swamplink

← Counting Cats & Whiskers · all breeds

Norwegian Forest Cat

origin: Norway · 6 figures in the corpus · Q42667

Every figure below carries this breed's name or id in its source study -- grouped by what it measures, not ranked. A breed appearing under a study here does not mean every other breed was tested and came back negative; it means this is what has a named source so far. See each figure's own page for its caveats.

Longevity

9.95 years (life expectancy at age 0) verified

Norwegian Forest Cat: years (life expectancy at age 0) (Teng KT, O'Neill DG, Brodbelt DC, Church DB, Pegram C)

  • Study sample n=15 (small sample; treat the estimate as imprecise).

Causes of death

419 deaths per 10,000 cat-years at risk (ASMR) verified

Norwegian Forest Cat: age-standardized total mortality rate, Swedish insured cats (Egenvall 2009, Agria)

  • A rate, not a life expectancy -- higher ASMR means higher yearly death risk, not necessarily a shorter median lifespan.

Breeding

5.05 mean kittens per litter verified

Norwegian Forest Cat: mean litter size (Cerna et al. 2024)

  • Study sample n=65 litters.
10.8 percent of litters by caesarean section verified

Norwegian Forest Cat: caesarean-section rate (Cerna et al. 2024)

  • Study sample n=65 litters.
9.5 percent cumulative kitten mortality to 12 weeks verified

Norwegian Forest Cat: cumulative kitten mortality to 12 weeks, stillbirths included (Cerna et al. 2024)

  • Study sample n=65 litters.

Category (FIFe)

2 FIFe category (1-4, coat/morphology grouping) verified

Norwegian Forest Cat (NFO): FIFe Category 2

  • Category is a coat/morphology grouping FIFe itself uses, not a ranking (1=lowest number, 4=highest, no ordinal meaning).