L-Lysine

L-Lysine supplementation in monogastric feeds is a simple, effective and accurate way of adjusting lysine content to animal requirements in order to optimize the technico-economic results of the production. L-Lysine also allows limiting the use of protein-bound lysine which is contained in vegetable protein such as soybean meal; this in turn reduces dietary crude protein levels and, as a consequence, reduces nitrogen excretion from animal husbandry in the environment. Moreover, as L-Lysine is 100% digestible, its utilization by the animal is far greater than that of protein-bound lysine from vegetable proteins.
For these reasons, L-Lysine is the “leading amino acid” used in both pig and poultry feeds with regard to quantity and frequency of supplementation. The results of the feed surveys which we regularly carry out throughout Europe have shown that frequency of L-Lysine supplementation is greater than 95% in commercial pig and poultry feeds, irrespective of the stage of the animal’s growth. Its use is also common in feeds for rabbits and pre-ruminant calves and it is quickly developing in fish feeds, aquaculture and pet food.

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