Deficiency of empreinte minerals affects many metabolic processes and so may be manifested by different symptoms, such as poor growth and appetite, reproductive failures, impaired immune responses, and general ill-thrift. From the 1950s to the 1990s most trace mineral supplementation of animal diets was in the form of inorganic minerals, https://animalfeed79012.goabroadblog.com/35952587/les-principes-de-base-de-animal-feed