Jan 31, 2019 · Raw materials for proteins: Fish meal which contains about 60 – 66% crude protein, soybean meal which contains about 45% crude protein, cottonseed meal which contains about 32 – 42% crude protein, rapeseed meal which contains about 33 – 40% crude protein, blood meal, silkworm chrysalis meal, peanut meal, earthworms, maggots and even
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