Animal Nutrition and Feeding Online Quiz

Probiotics are live, beneficial microorganisms that are added to animal feed to promote a healthy digestive tract and improve nutrient absorption. Prebiotics, by contrast, are non-living fibrous compounds that feed these beneficial microbes.

Feeding methods are generally categorized into scheduled feeding, where animals are fed at specific times, and free access (or ad libitum) feeding, where feed is available to the animals at all times.

Feed is the single largest expense in livestock production, often accounting for up to 75% of the total operational costs. Managing feed efficiency is therefore critical for profitability in animal farming.

In animal nutrition, feedstuffs are classified as concentrates if they contain less than 18% crude fiber on a dry matter basis. Feeds with 18% or more crude fiber are classified as roughages or bulky feeds.

Vitamin C and the B-complex vitamins are water-soluble, meaning they dissolve in water and are not stored in large amounts in the body. In contrast, vitamins A, D, E, and K are fat-soluble and can be stored in fatty tissues.

Saturated fats contain single bonds between carbon atoms, allowing them to pack closely together and remain solid at room temperature. Unsaturated fats, by contrast, tend to be liquid at room temperature.

Ruminants, such as cows and sheep, have a complex stomach divided into four compartments (rumen, reticulum, omasum, and abomasum) to ferment fibrous plant material. Animals with a single simple stomach are called monogastrics.

Proteins, lipids, and vitamins are essential nutrient classes required by the body for survival and growth. Additives are substances added to feed to improve preservation, palatability, or handling, but they do not provide nutritional value themselves.