Genetic variation and covariation in productive characters of new zealand romney marsh sheep

摘要

Estimates of heritability of six characteristics and the genetic and phenotypic correlations among them have been obtained from a flock of New Zealand Romney Marsh sheep. The characters studied were greasyamp;#x2013;fleece weight, staple length, quality number, fleece quality, hairiness, and body type. The characters were recorded at 14 months of age on 697 ewe hoggets which had been shorn as lambs.