Poultry Judging Practice Test

In poultry, what does the term "xanthophyll" refer to?

1. A type of feed

2. A breed of chicken

3. A pigment

4. A poultry disease

The correct answer is: A pigment

The term "xanthophyll" refers to a type of pigment, which is primarily responsible for the yellow coloration seen in poultry, especially noticeable in the skin and egg yolks of certain birds. Xanthophylls are carotenoids, a class of pigments that play a role in photosynthesis and impart color to various fruits and vegetables, as well as animal products. In poultry production, the level of xanthophyll in the diet can influence the color of the skin and the yolk of eggs, which can be an important factor for consumer preference and marketability. This understanding of xanthophyll is essential for poultry nutrition and breeding practices, as it directly affects the visual characteristics that consumers look for. The other choices, such as a type of feed, a breed of chicken, or a poultry disease, do not accurately capture the definition and significance of xanthophyll in the context of poultry.