Degree Type

Thesis

Date of Award

2007

Degree Name

Master of Science

Department

Animal Science

Major

Nutritional Sciences

First Advisor

Kristjan Bregendahl

Abstract

Corn kernel chemical and physical traits vary among corn hybrids and could influence growth and production performance in livestock. An experiment was performed to analyze the effects of feeding 6 different corn hybrids on the performance of broiler chickens, laying hens, and pigs. Diets were formulated to be slightly deficient in essential nutrients to increase the likelihood of detecting performance differences, and each hybrid was substituted equally into the diets to obtain 6 dietary treatments. Corn hybrid elicited performance differences, and individual kernel characteristics were significantly correlated with the performance differences. In the case of younger animals, physical traits elicited performance changes more frequently, while in older animals, chemical nutritive content of the kernels elicited performance changes more frequently. While the correlations with performance were significant, they were not sufficiently large enough to cause selection of corn grain for animal diets based on any one chemical or physical trait.

DOI

https://doi.org/10.31274/rtd-180813-15985

Publisher

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

Copyright Owner

Scott Melvin Moore, Jr.

Language

en

Proquest ID

AAI1443151

OCLC Number

163566549

ISBN

9781109818642

File Format

application/pdf

File Size

122 pages

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