Dec 26, 2022 · 网页To meet the demand, a large number of small-scale and a few large-scale feed manufacturers have appeared. However, at this stage pellets are not commonly used and their quality is poor. The proximate composition of factory-made feeds is reported to be 20-30 percent protein, 2-4 percent fat, 10-15 percent fibre, 30-40 percent carbohydrate, and
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