Deficiency of trace 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 griffe mineral supplementation of animal diets was in the form of inorganic minerals, https://animalfeed13467.therainblog.com/35561065/examiner-ce-rapport-sur-la-animal-feed