Poultry Judging Practice Test

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Study for the Poultry Judging Test with interactive quizzes. Enhance your skills with multiple choice questions including hints and explanations. Prepare for your exam and excel!

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What is the primary function of the yolk in an egg during incubation?

Heat regulation
Embryo protection
Nutrient supply
Waste elimination

The correct answer is: Nutrient supply

The primary function of the yolk in an egg during incubation is to serve as a nutrient supply. The yolk contains essential nutrients such as proteins, fats, vitamins, and minerals that are crucial for the developing embryo. As incubation progresses, the embryo absorbs these nutrients to support its growth and development. The yolk provides the necessary energy and building blocks for the formation of tissues and organs, making it vital for the overall health and success of the developing chick. While other functions may relate to various components of the egg, such as the shell providing protection or the albumen (egg white) aiding in moisture and cushioning, the yolk’s role as a nutrient supply is its most significant and critical function during the incubation process.