网页2013年1月4日 · Some extruded recipes, for example, were reported to start at a $20-50/tonne potential savings over pelleted recipes and go up from there.Last, but not least, is the effect of extrusion on feed performance. In one study, shrimp survivability increased from 75% on pelleted feed to 88.9% on extruded feed. At the same time, final weight
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