Animal Genetics and Selection

Catalog description

Fundamental principles of genetics as applied to breeding farm animals. ANSC 322 Animal Genetics and Selection (3) This course teaches fundamental concepts related to genetic variation and how genetic change occurs in domestic animal populations. Students are introduced to the structure of animal genomes and molecular genetics. We discuss transcription, translation and factors that alter gene expression. Examples of mutations that underlie phenotypic variation are given and the contrast between traits influenced by single genes versus variation across the genome is emphasized. Students will learn how genetic material is passed from parent to offspring and how principles of inheritance are extended to populations. The concept of heritability for quantitative traits and factors that determine breeding values and the rate of genetic change for quantitative traits are considered. We discuss how biotechnologies can be used to alter genetic response in domestic animals, how genetic change for one trait can alter expression of correlated traits, and the animal welfare consequences that can arise due to genetic change. Genetic relationships among animals and inbreeding control strategies such as crossbreeding are considered. Students are also exposed to controversial issues relating to genetics and selection. Students participate in a breeding simulation and contrast population genetic change throughout semester to changes observed by their classmates.