Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability

The objectives of this review were to summarize current knowledge of Zn in swine nutrition, environmental concerns, potential contribution to antimicrobial resistance, and explore the use of alternative feeding strategies to reduce Zn excretion in manure while capturing improvements in productivity....

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Main Authors: Gerald C. Shurson, Pedro E. Urriola, Yuan-Tai Hung
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/12/23/3374
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author Gerald C. Shurson
Pedro E. Urriola
Yuan-Tai Hung
author_facet Gerald C. Shurson
Pedro E. Urriola
Yuan-Tai Hung
author_sort Gerald C. Shurson
collection DOAJ
description The objectives of this review were to summarize current knowledge of Zn in swine nutrition, environmental concerns, potential contribution to antimicrobial resistance, and explore the use of alternative feeding strategies to reduce Zn excretion in manure while capturing improvements in productivity. Zinc is a required nutrient for pigs but is commonly supplemented at concentrations that greatly exceed estimated requirements. Feeding pharmacological concentrations of Zn from ZnO to pigs for 1 to 2 weeks post-weaning reduces post-weaning diarrhea and improves growth performance. Feeding elevated dietary levels of Zn to sows during the last 30 days of gestation can reduce the incidence of low-birth-weight pigs and pre-weaning mortality. Most of the dietary Zn consumed by pigs is not retained in the body and is subsequently excreted in manure, which led several countries to impose regulations restricting dietary Zn concentrations to reduce environmental impacts. Although restricting Zn supplementation in swine diets is a reasonable approach for reducing environmental pollution, it does not allow capturing health and productivity benefits from strategic use of elevated dietary Zn concentrations. Therefore, we propose feeding strategies that allow strategic use of high dietary concentrations of Zn while also reducing Zn excretion in manure compared with current feeding practices.
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spelling doaj.art-4a5705cb716e4530a38f14658208e9fd2023-11-24T10:26:04ZengMDPI AGAnimals2076-26152022-11-011223337410.3390/ani12233374Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental SustainabilityGerald C. Shurson0Pedro E. Urriola1Yuan-Tai Hung2Department of Animal Science, University of Minnesota, St. Paul, MN 55108, USADepartment of Animal Science, University of Minnesota, St. Paul, MN 55108, USADevenish Nutrition, Fairmont, MN 56031, USAThe objectives of this review were to summarize current knowledge of Zn in swine nutrition, environmental concerns, potential contribution to antimicrobial resistance, and explore the use of alternative feeding strategies to reduce Zn excretion in manure while capturing improvements in productivity. Zinc is a required nutrient for pigs but is commonly supplemented at concentrations that greatly exceed estimated requirements. Feeding pharmacological concentrations of Zn from ZnO to pigs for 1 to 2 weeks post-weaning reduces post-weaning diarrhea and improves growth performance. Feeding elevated dietary levels of Zn to sows during the last 30 days of gestation can reduce the incidence of low-birth-weight pigs and pre-weaning mortality. Most of the dietary Zn consumed by pigs is not retained in the body and is subsequently excreted in manure, which led several countries to impose regulations restricting dietary Zn concentrations to reduce environmental impacts. Although restricting Zn supplementation in swine diets is a reasonable approach for reducing environmental pollution, it does not allow capturing health and productivity benefits from strategic use of elevated dietary Zn concentrations. Therefore, we propose feeding strategies that allow strategic use of high dietary concentrations of Zn while also reducing Zn excretion in manure compared with current feeding practices.https://www.mdpi.com/2076-2615/12/23/3374antimicrobial resistancebioavailabilitybiomarkersenvironmental impactsfeeding practicesgrowth promotion
spellingShingle Gerald C. Shurson
Pedro E. Urriola
Yuan-Tai Hung
Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability
Animals
antimicrobial resistance
bioavailability
biomarkers
environmental impacts
feeding practices
growth promotion
title Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability
title_full Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability
title_fullStr Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability
title_full_unstemmed Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability
title_short Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability
title_sort too much of a good thing rethinking feed formulation and feeding practices for zinc in swine diets to achieve one health and environmental sustainability
topic antimicrobial resistance
bioavailability
biomarkers
environmental impacts
feeding practices
growth promotion
url https://www.mdpi.com/2076-2615/12/23/3374
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