Abstract

Genetic and phenotypic paramaters for weight at 2, 7 and 19 months of age were estim ated in reindeer The study was conducted using around 5500 records from an additional tagged reindeer herd in Sweden. Data from the years 1986 to 1990 were used in the analysis. Phenotypic variances in live weight were estim ated. In a selected population, within-individual variance was W hpr tVian between-animal variance, and the variance in the unselected population was higher between than within anim als. Repeatability of live weight between 2 and 7 months was estunated to be 0 64 for malas and 0.61 for females. In the selected population of fem ales, repeatabilities were, after correction for the effect of selection, 0.32 (between 2 and 19 months) and 0.55 (between 7 and 19 months). Heritability for liveweight at seven months, around 0.4, was estim ated from the regression of offspring on dam. Genetic gain in this trait was estim ated to 1% per year

C. J Petersson, B. Danell

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 19. Selection and quantitative genetics; growth; reproduction; lactation; fish; fiber; meat., , 212–215, 1994
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