Texas FFA Livestock Judging Practice Test

The component that contains the most easily digested carbohydrates is nitrogen-free extract. This feed component primarily consists of sugars and readily digestible starches, which are vital sources of quick energy for livestock. Nitrogen-free extract is typically found in high-energy feeds and is characterized by having a low structural carbohydrate content, making it highly fermentable and easily absorbed by the animal's digestive system.

In the context of livestock nutrition, carbohydrates are crucial for overall productivity and health. While roughage is essential for digestive health, it is primarily composed of structural carbohydrates, which are more difficult to digest. Crude fiber, which is a measure of the un-digestible portion of the feed, also contains complex carbohydrates that aren’t as readily available as those in nitrogen-free extract. Concentrates do contain carbohydrates, but the highest concentration of easily digestible carbohydrates is found specifically in nitrogen-free extract, distinguishing it from the other feed components.