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Ruminant feed comprising urea,a slow release urea supplement feed and a method for preparation of said supplement feed
Ruminant feed comprising urea,a slow release urea supplement feed and a method for preparation of said supplement feed
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机译:包含尿素的反刍动物饲料,缓释尿素补充饲料及其制备方法
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摘要
The present invention relates to ruminent feed comprising urea, slow release urea feed supplement and a method for preparation of said feed supplement. The ruminent feed comprises 0.5-5 weigth% diet dry matter of urea as a lignin-urea (LU) product. The preferred ratio lignin:urea in the LU product is 75-15 : 85-25. The slow release urea supplement feed comprises said LU product, which may contain additives such as starch lanolin, glycine, paraffin, and/or polyethylene glycol. The LU product may also be coated. The slow release urea product can be prepared by mixing lignin with solid urea at 130-200{C at pressures of 1-10 bar and at a retention time of 0.5-30 minutes. The resulting lignin-urea product is crushed or milled to desired size.
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