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A feed additive is an additive of extra nutrient or drug for livestock. Such additives include vitamins, amino acids, fatty acids, minerals, pharmaceutical, fungal products and steroidal compounds. The additives might impact feed presentation, hygiene, digestibility, or effect on intestinal health. [1] [2]
According to Art. 6, Reg. EC 1831/2003, a zootechnical feed additive is defined as “any additive used to affect favourably the performance of animals in good health or used to affect favourably the environment”. [14] In the European Union, all phytogenic products must pass the authorization process as feed additive, if efficacy claims are ...
Animal feeds contain varying levels of indigestible nutrients and undesired components such as fiber, phytate or proteins with antigenic effects. Different feed enzymes such as, carbohydrases, phytases or proteases, can be included in feeds to improve the use of energy and nutrients or to degrade several undesired components.
Animal feed is an important input to animal agriculture, and is frequently the main cost of the raising or keeping of animals. Farms typically try to reduce cost for this food, by growing their own, grazing animals, or supplementing expensive feeds with substitutes, such as food waste like spent grain from beer brewing .
Animals are thought to better absorb, digest, and use mineral chelates than inorganic minerals or simple salts. [1] In theory lower concentrations of these minerals can be used in animal feeds. In addition, animals fed chelated sources of essential trace minerals excrete lower amounts in their faeces, and so there is less environmental ...
Lysine production for animal feed is a major global industry, reaching in 2009 almost 700,000 tons for a market value of over €1.22 billion. [102] Lysine is an important additive to animal feed because it is a limiting amino acid when optimizing the growth of certain animals such as pigs and chickens for the production of meat.
Those additives also create that stringy gooeyness you love with your pizza and cheeseburgers. Real cheese comprises four primary ingredients: milk, starter culture, salt, and enzymes (often rennet).
The source of NPN is typically a chemical feed additive, or sometimes chicken waste, [7] [8] and cattle manure. [9] [10] However, excessive intake of NPN can have adverse effects on animal health and productivity, as well as environmental implications.