Environmental responsibilities of livestock feeding using trace mineral supplements

Animal Nutrition
Daniel Brugger, Wilhelm M Windisch

Abstract

Trace elements are essential dietary components for livestock species. However, they also exhibit a strong toxic potential. Therefore, their fluxes through the animal organism are tightly regulated by a complex molecular machinery that controls the rate of absorption from the gut lumen as well as the amount of excretion via faeces, urine and products (e.g., milk) in order to maintain an internal equilibrium. When supplemented in doses above the gross requirement trace elements accumulate in urine and faeces and, hence, manure. Thereby, trace element emissions represent a potential threat to the environment. This fact is of particular importance in regard to the widely distributed feeding practice of pharmacological zinc and copper doses for the purpose of performance enhancement. Adverse environmental effects have been described, like impairment of plant production, accumulation in edible animal products and the water supply chain as well as the correlation between increased trace element loads and antimicrobial resistance. In the light of discussions about reducing the allowed upper limits for trace element loads in feed and manure from livestock production in the European Union excessive dosing needs to be critically reconsid...Continue Reading

Citations

Jul 28, 2019·Journal of Animal Physiology and Animal Nutrition·David Ramos-VidalesErnesto Ávila-González
May 10, 2018·Frontiers in Plant Science·Nicola M Capstaff, Anthony J Miller
Apr 3, 2020·Environmental Science. Processes & Impacts·Colin J CunninghamCharles W Knapp
Nov 19, 2020·Journal of Animal Science·Gavin M BoerboomJavier Martín-Tereso
Feb 9, 2021·Preventive Veterinary Medicine·Cecilie Liv NielsenMogens Agerbo Krogh
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Mélissa DuplessisDoris Pellerin

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