Lysine belongs to the group of essential limiting amino acids. It is found in all of the proteins but vegetable proteins contain its small amounts, thus feed mixtures are often poor in it. Lysine deficiency in the body is caused by poultry diets that consist mainly of cereals, sunflower meal and minor amounts (1–2 %) of animal feed. It contains two amino groups and one carboxyl group, therefore it has basic properties. Lysine is a component of proteins.
It is necessary for poultry for the regulation of nitrogen and carbohydrate metabolism, as well as for the synthesis of nucleotides and chromoproteins, it promotes intensive growth of younger animals, intensive use of feed, and melanin pigment formation in poultry feathers; lysine affects formation of erythrocytes and calcium deposition in bones, is involved in redox reactions, activates transamination and deamination of amino acids, facilitates calcium and phosphorus absorption.
Lysine is an amino acid of the second priority in poultry requiring methionine for the feather protein formation. Wheat, barley, and corn and sunflower diets are almost always poor in lysine.
Microgranulated flowing cream-colored powder. It is readily soluble in water.
A capability of oxidizing carbohydrates is a special feature of lysine. This interaction of carbohydrates and amino acid transforms lysine in an indigestible complex. To improve the availability of amino acids in general and lysine in particular, especially the ones from legumes, they are subjected to heat treatment. Therefore, currently, the rationing of poultry requirements in lysine should be based on available lysine up to the normal level specified in the relevant tables.
Available lysine is more completely used for the synthesis of proteins especially relevant for the formation of skeletal tissue, enzymes and hormones. At the same time, with the deficiency of available carbohydrates, lysine can be metabolized to yield glucose and ketone bodies. This process is an important energy source for poultry under fasting. Lysine deficiency in some feed reaches 15–20 %.
25 kg bags or 1 000 kg big bags.
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