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Choline contributes to vital biological functions of body, as for example for the synthesis of the phospholipids, which are structural cell components, as precursors for the intracellular messenger molecules, and for acetylcholine. Choline is the major source of methyl groups. The molecular formula of choline chloride is C5H14NO.Cl and its molecular weight is 139.63. It…
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The product L-lysine sulphate is a feed additive produced by fermentation with a genetically modified strain of Escherichia coli K-12. L-Lysine is an essential amino acid for all animal species. L-Lysine sulphate is widely used in the feed industry to optimise the amino acid profile of diets in order to improve animal performance. Neither the…
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In standard formulations of broiler diets, lysine is frequently a limiting amino acid and its dietary supplementation is a common practice keeping in view the negative effects of lysine deficiency on growth and feed intake [1]. The conventional form in which lysine is supplemented in broiler diet is lysine hydrochloride (L-lysine.HCl) which contains 78% available…
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Methionine is considered the first limiting amino acid in poultry due to its high demand on protein synthesis and feather development. Methionine requirements, on an as-fed basis, during the production stage of broiler chickens varied 0.50–0.52% for starter phase, 0.38–0.45% for grower phase and 0.32–0.44% for finisher phase. Thus, it is common practice to supplement…
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Vitamin A is essential for vision, growth differentiation and proliferation of a wide range of epithelial tissues, bone growth, reproduction and embryonic development. The tolerance data for the target species do not indicate a concern for animal safety considering the maximum values set in EU regulations for food producing animals and also for pets. All…
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Vitamin D3 is intended for use in chickens for fattening, turkeys, other poultry, pigs, piglets (suckling), calves for rearing, calves for fattening, bovines, ovine, equines, fish and other animal species or categories. The applicant proposes to maintain the maximum contents already established by the Commission List of the authorized additives in feeding stuffs published in…
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The biological effects of vitamin E are predominantly seen in the prevention of resorption of fetuses, testicular degeneration, muscle dystrophy, anemia and encephalomalacia, the classical signs of vitamin E deficiency in animals. The influence of vitamin E on the immune system has also become an important issue. Vitamin E acts as an antioxidant but the…