Towards Zero Zinc Oxide: Feeding Strategies to Manage Post-Weaning Diarrhea in Piglets.

Animals (Basel) · 2021 · PMC7997240 · PMID 33670980

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demonstrated that, over the period 1986–2014, the application of Zn-rich pig slurry led to a greater soil Zn concentration of 2–5%, with an average increase of 24% over the last sampling period (1998–2014), concluding that there might be significant risks for aquatic species because of Zn leaching from fertilized fields to groundwaters [ 69 ].

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