›› 2015, Vol. 42 ›› Issue (1): 97-103.doi: 10.16431/j.cnki.1671-7236.2015.01.015

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Study on Production of the Feed Made with the Detoxified Cottonseed Cake and the Detoxification Effect Demonstration

LI Jia, WANG Wei, YUAN Hong-shui, HAO Zhi-min, ZHU Bao-cheng   

  1. College of Life Science, Hebei Agricultural University, Baoding 071001, China
  • Received:2014-06-23 Online:2015-01-20 Published:2015-02-06

Abstract: The test obtained feed products made with detoxified cottonseed cake using solid fermentation method, then the physical properties of the feed products were observed with sensory evaluation method, the gossypol content was determined with national standard method, the crude protein content was determined with Kjeldahl method, and then the effect of practical application of the feed products was verified in the process of ducks feeding.The results showed that it only took 15 d to debase free gossypol to less than 10 mg/kg, and to increase content of crude protein to 4.35%.Compared with the original cake, the color of the cottonseed cake feed was lighter in color, soft texture, with smaller hardness, no lumps, no smell, conforms to the safety standard.It was shown in ducks feeding experiment that compared with the ducks in control group, no abnormal situation of growth, organ development, blood parameters and utilization of feed nutrients of the ducks in test groups was found, which fed cottonseed cake fermentation detoxification feed prepared in the laboratory instead of conventional feed.So it could be speculated that no gossypol poisoning phenomenon was found in the ducks in test groups.In other words, the gossypol content of cottonseed cake feed after detoxification complianced with feed safety standards, and detoxification purposes was achieved.

Key words: cottonseed cake; free gossypol; detoxification; feed

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