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Transl Anim Sci. 2019 Apr 08;3(2):709-716. doi: 10.1093/tas/txz035. eCollection 2019 Mar.

Weaned piglets prefer feed with hydroxychloride trace minerals to feed with sulfate minerals.

Translational animal science

Sandra J A Van Kuijk, Marleen A Fleuren, Anke P J Balemans, Yanming Han

Affiliations

  1. Trouw Nutrition, R&D, AG, Amersfoort, The Netherlands.

PMID: 32704838 PMCID: PMC7200832 DOI: 10.1093/tas/txz035

Abstract

The aim of this study was to determine whether newly weaned piglets had a preference for diets containing hydroxychloride trace minerals (HTM). To test this, two preference tests were set up. In Exp. 1, the piglets could choose between HTM or inorganic, originating from sulfate trace minerals (STM) in the form of sulfates. Two treatments were applied with high Cu levels (160 ppm Cu added) or low Cu levels (15 ppm Cu added). All diets contained 110 ppm added Zn from the same source as Cu in the respective diet. The pigs could choose between a diet with hydroxychloride Cu and Zn or with Cu and Zn originating from sulfates at the same mineral levels. The piglets were included in the study from weaning until 34 d after weaning. In Exp. 2, the piglets could also choose between HTM and STM. However, automated feeding stations were used to collect individual feed intake data. Similarly two treatments were applied, one with high Cu levels (160 ppm added Cu) and one with slightly lower Cu levels (140 ppm added Cu until 28 d after weaning, thereafter 15 ppm added Cu). All diets contained 110 ppm added Zn from the same source as Cu in the respective diet. The piglets were followed until 35 d after weaning. The current studies showed that when piglets were given a choice, they preferred diets with HTM. This effect resulted only in a significant (

© The Author(s) 2019. Published by Oxford University Press on behalf of the American Society of Animal Science.

Keywords: hydroxychloride trace minerals; preference test; sulfate trace minerals; weaned pigs

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