Degree Type

Thesis

Date of Award

2006

Degree Name

Master of Science

Department

Animal Science

First Advisor

Thomas J. Baas

Second Advisor

Kenneth J. Stalder

Abstract

An experiment was conducted to compare the effect of reduced levels of inorganic and organic trace mineral supplementation on performance, carcass characteristics, and mineral excretion of grow-finish swine. Crossbred pigs were randomly assigned to the following treatments of reduced Cu, Fe, and Zn supplementation: TRT (1) 25% inorganic, TRT (2) 25% organic, TRT (3) 10% inorganic, and TRT (4) 10% organic. In general, pigs fed reduced levels of trace minerals excreted less Cu and Zn. The same can be said for pigs fed organic trace minerals. Organic trace minerals can be supplemented in place of inorganic forms to reduce fecal mineral concentrations. Both organic and inorganic trace minerals can be fed at reduced levels to decrease fecal trace mineral concentrations without adversely affecting growth, feed efficiency, and carcass characteristics. However, under increased levels of stress, mineral deficiency symptoms may occur more frequently in pigs fed reduced levels of trace minerals.

DOI

https://doi.org/10.31274/rtd-180813-128

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu

Copyright Owner

Matthew Lee Wolfe

Language

en

Proquest ID

AAI1439838

File Format

application/pdf

File Size

68 pages

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