# Trace-mineral feed additives

Nutrients & supplements — Organic and hydroxy forms of trace minerals (zinc, copper, manganese, selenium), chelated with amino acids or as bis-chelate complexes, replace inorganic sulfates/oxides in livestock rations — higher bioavailability, lower excretion in manure.

Source: https://en.bioecon.ru/market/nutrients-supplements/trace-mineral-feed-additives/