ANSC Feeds Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is the function of a rumen in ruminant animals?

It stores energy for future use

It prepares feed for digestion in the intestines

It serves as a fermentation chamber

The rumen plays a crucial role as a fermentation chamber in ruminant animals, such as cows, sheep, and goats. It is the largest of the four stomach compartments and accommodates a diverse microbial population that aids in the breakdown of complex plant materials, particularly cellulose, which ruminants are highly reliant on for their nutrition. This fermentation process produces volatile fatty acids, which serve as a significant energy source for the animal.

In addition to aiding digestion, the rumen functions as a reservoir that allows ruminants to consume large amounts of fibrous plant material quickly and then digest it more thoroughly at a later time. During the process of rumination, feed is regurgitated, chewed again, and swallowed, facilitating further fermentation and digestion. This unique adaptation enables ruminants to thrive on a diet primarily consisting of plant fibers, which many other animals cannot effectively utilize.

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It regulates hydration levels in the animal

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