Technical method for producing antibiotic-free selenium-enriched laying hen feed by insects
The invention discloses a technical method for producing antibiotic-free selenium-enriched laying hen feed by insects. The technical method is characterized by comprising the following steps of: cleaning insects, including fly maggots, earthworms, cockroaches, silkworm larva, centipedes, dioscorea c...
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Format: | Patent |
Sprache: | chi ; eng |
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