Some heritability estimates

trait correlation

Cattle

butterfat percentage 0.6

milk yield 0.3

Pigs

body length 0.5

weight at 180 days 0.3

litter size 0.15

Poultry

egg weight 0.6

annual egg production 0.3

body weight 0.2

viability 0.1

Drosophila melanogaster

abdominal bristle number 0.5

body size 0.4

ovary size 0.3

egg production 0.2

Source: Adapted from D.S. Falconer, Introduction to Quantitative Genetics, Copyright 1960 D.S. Falconer, reprinted with permission of Longman Group Ltd.