Life Sciences Commons^™

Twin-Screw Extrusion Processing Of Distillers Dried Grains With Solubles (Ddgs)-Based Yellow Perch (Perca Flavescens) Feeds, Ferouz Y. Ayadi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Michael L. Brown

Natural Resource Management Faculty Publications

Increases in global aquaculture production, compounded with limited availabilities of fish meal for fish feed, has created the need for alternative protein sources. Twinscrew extrusion studies were performed to investigate the production of nutritionally balanced feeds for juvenile yellow perch (Perca flavescens). Five isocaloric (~3.06 kcal/g) ingredient blends, adjusted to a target protein content of 36.7% db, were formulated with 0%, 10%, 20%, 30%, and 40% distillers dried grains with solubles (DDGS) at an initial moisture content of 5–7%db, with appropriate amounts of fish meal, fish oil, whole wheat flour, corn gluten meal, and vitamin and mineral premixes. …

The Journal Of Undergraduate Research: Volume 09

The Journal of Undergraduate Research

This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 13.

Building Spaces To Grow New Ideas: Research 2011, University Office Of Research, South Dakota State University

Research: South Dakota State University

CONTENTS:

Feeding the World [Page] 2
A Light on New Possibilities [Page] 4
Designing New Tools [Page] 6
Wellness Science [Page] 8
Renovating a Science Resource [Page] 10
Connect World Possibilities [Page] 12
Transfer Research [Page] 14

Long Term, Continuous Temperature Monitoring Of A Simple Anaerobic Digester And Open Manure Storage Pond In Eastern South Dakota, J. Darrington, E. Cortus

The Journal of Undergraduate Research

A two-cell manure storage system with a cover on the first cell was constructed in the late summer of 2009 in Eastern South Dakota. The covered cell acts as a simple anaerobic digester. Continuous temperature monitoring for 8 months shows the winter effluent temperature equilibrated to around 6°C, and that the effluent temperature trend lagged the ambient temperature trend by a month. Manure composition was also analyzed and was found to be relatively steady throughout the system. Volatile solids were the only component that dropped appreciably across the treatment cell, with an observed maximum of 50% reduction.