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United States Department of Agriculture

Agricultural Research Service

Title: Processing Cottonseed and Gin Waste Together to Produce a Livestock Feed

Authors
item Thomasson, J - MISS STATE UNIVERSITY
item Anthony, William
item Williford, Julius
item Johnson, W - TEXAS A&M UNIVERSITY
item Gregory, S - TEXAS A&M UNIVERSITY
item Calhoun, M - TEXAS AG EXPERIMENT STA
item Stewart, R - COASTAL PLAIN EXP STATION

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: June 18, 1998
Publication Date: N/A

Interpretive Summary: Cotton Gin Waste (CGW) presents a substantial problem for cotton ginners because about 3 million tons are produced annually. One method to utilize CGW is to feed it to cattle, however, problems exist because of potential pesticide contamination. This study evaluated the pesticide reduction potential of extruding CGW with various quantities of cottonseed. Results suggested that some pesticides such as Dropp were significantly reduced while others were not. Additional research is required to develop technology to render the potential pesticide residue in CGW harmless.

Technical Abstract: Whole cottonseed and cotton gin waste (CGW) were mixed together and then heated and compressed to produce a material suitable as a livestock feed. The product was in the form of chips that would be easy to handle with feed handling equipment. The nutritional value of the product was good, free gossypol content was greatly reduced during the process, and Methomyl and Dropp residues were reduced while those of other chemicals were not. The process required only two machines: a ribbon mixer and an expander cooker. Seed to CGW mix ratios of 1:1 up to 9:1 worked well with this process, but attempts with less seed than CGW resulted in an unacceptable product.

Last Modified: 9/23/2014
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