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Alternate Storage Method for Whole Cottonseed

Michael J. Bader, Joe West, Lane Ely, Steve L. Brown, Tom C. Wedegaertner and Thomas D. Valco


 
ABSTRACT

A study was conducted to determine the feasibility of storing cottonseed in silage bags at the University of Georgia Coastal Plain Experiment Station in Tifton, Georgia. The study contained six different treatments. The treatments were hot gin run seed with and without preservative, cool seed with and without preservative, and wet seed with and without preservative. Each treatment contained approximately 10 tons of cottonseed. The study was initiated on December 12, 1995 and ended on August 26, 1996. Samples for quality, moisture, mycotoxins, and insect populations were taken at the filling of the bags, on April 12, 1996, and at the emptying of the bags. A cottonseed sample was placed in a conventional seed warehouse to compare insect populations. Three thermocouples were placed in each bag. One was placed near the top, one on the east near the bottom, and one on the west side near the bottom. The moisture content of the low level moisture bags ranged between 7.0 and 8.5 percent wb. The high moisture level bags ranged between 10.9 and 13.5 percent wb. The cottonseed in conventional storage contained more insects than the cottonseed stored in the bags. The percent fatty acid content in the low moisture cottonseed increased an average of 2.5 percentage points. The percent fatty acid content in the two high moisture cottonseed bags increased from 7.0 percent to 18.5 percent and from 14.5 percent to 23.0 percent. The quality of the cottonseed deteriorated more in the high moisture cottonseed than the low moisture cottonseed. The cottonseed was tested for mycotoxins during the test. Aflatoxin and zearalenone was not detected in any of the samples. Vomitoxin was found in the initial samples at low levels ranging from 0.5 to 1.2 ppm; however, its level decreased during storage. The temperatures in the high moisture bags remained higher during most of the tests.



Reprinted from Proceedings of the 1997 Beltwide Cotton Conferences pp. 1596 - 1598
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998