Chapter 25, Problem 15PDQ

Summary Introduction

To determine: The effect on milk protein content in the next generation when the farmer selects cows producing more butterfat in their milk in the given problem.

Introduction: The contribution of genotypic variance to the total phenotypic variance is measured by broad-sense heritability (H²). Narrow-sense heritability (h²) is the proportion of phenotypic variance due to additive genotypic variance alone. The narrow-sense heritability estimates are important to the plant or animal breeder because they estimate the proportion of total phenotypic variance for the trait that is due to additive genetic variance