Vitamin Needs Of Broilers

Vitamins are found in a wide variety of feed ingredients. However, most of the rich natural sources of vitamins such as wheat bran or alfalfa meal have been virtually eliminated from poultry feeds in favor of more concentrated but less vitamin-rich ingredients such as whole cereal grains (corn or sorghum) and processed protein sources such as soybean meal. Animal proteins such as fish meal or meat-and-bone meal may contribute significant amounts of vitamins. Vitamins are economically produced by chemical synthesis or fermentation, and poultry feeds are typically fortified with vitamin mixes that provide all of the required vitamins in sufficient amounts with little reliance placed upon the vitamins provided by the natural ingredients. Because vitamins are relatively inexpensive in relation to the total cost of the diet, most are provided well in excess of the anticipated needs of the animal.

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