Term to describe the quality of feedstuffs suitable for animal, but not human, consumption. Any constituent of a feed mixture. Treated with iodine or iodide. A vitamin, mineral, antibiotic, drug or other compound normally required in small amounts and added to diets in milligrams or micrograms. Refers to the diameter of granular feed materials.
Particle size can affect mixing of feed ingredients and digestion rate.
A substance added to protect, prevent or retard decay, discolouration or spoilage of a substance during storage or use. A compound added to feeds to prevent the oxidative rancidity of fats. Claims include improved reproductive efficiency and decreased uterine and mammary infections in dairy cows. Used in livestock rations to maintain a desired rumen pH of 6.2 - 6.5, which is optimal for digestion of feeds and rumen microbial protein synthesis. Ruminants generally synthesize adequate amounts, but choline may be added to diets of early lactation dairy cows.