Ep289 - Evolutionary Factors that can Change the Direction of Your Strain - Part 2

About this episode

This episode explores the evolutionary factors that influence chicken breeds and commercial strains, including genetics and epigenetics.

Have you ever wondered how we ended up with chickens that lay 300 eggs a year or grow to market weight in just a few weeks? In this episode, we take a deep dive into the science behind chicken breeds and commercial strains —and it's more than just DNA. Join us as we explore how evolutionary mechanisms like natural selection, artificial selection, genetic drift, gene flow, and mutation shape the chickens we know today. But we're going even deeper—into the world of epigenetics , where genes can be switched on or off by the environment, diet, stress, or even selective breeding itself. We'll uncover: How farmers and scientists use selective breeding to develop broilers and layers Why genetic drift and gene flow affect rare and local breeds The role of mutations in creating traits like feather type, color, and growth rate How epigenetic changes may influence productivity, behavior, and health—without changing a single base of DNA Whether you're a poultry enthusiast, breeder, student, or just curious about how science shapes our food systems, this episode is packed with insights on the biology of chicken breeding and evolution . Make sure to follow and watch our future shows. We plan…

People in this episode

Host: Kenny Troiano

Topics covered

• evolutionary mechanisms
• chicken breeding
• genetics
• epigenetics
• natural selection
• artificial selection

Keywords

• chicken breeds
• evolution
• genetic drift
• gene flow
• selective breeding
• epigenetics
• poultry

Mentioned in this episode

Books & works: Bred to Perfection

Places: chickens

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