The best feed for salmon bone to cod
According to research by scientists, salmon bone is the best raw material for cod feed.
Wild cod eat a lot of mineral-rich crustaceans, and this diet can continue to "carry forward" in the aquaculture industry, scientists have revealed. After scientists added mineral-rich salmon bones to their feed, farmed cod increased their appetite and grew faster. Compared with fish fed on a normal diet, cod fed with 20% salmon bone meal increased their growth rate by 10%.
In addition, after the salmon bone meal is mixed into the feed, the feed production does not need to use the expensive fish meal in the past. As a result, feed prices have also fallen. Moreover, untreated fish bones with meat can also replace the fish oil and protein in the original feed. Through calculation, it is found that through the use of untreated fish bone meal, the feed price can be reduced by 12%.
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How to disinfect fish with polyiodine
Winter is the season with high incidence of fish water mildew, so fish disinfection must focus on the prevention and control of water mildew. After the specific drug malachite green was banned, polyiodine is an ideal drug for the prevention and treatment of water mildew. The full name of polyiodine is compound S polyiodine, which has a strong killing effect on bacteria, viruses and fungi, and its bactericidal ability is more than 10 times higher than that of povidone iodine. In addition, high polyiodine contains high content of traditional Chinese medicine, which has the function of rapid wound healing for fish species injured by net-pulling operation and long-distance transportation. Polyiodide
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Basic principles for the use of fishery drugs
The use of fishery drugs is based on the basic principle of not endangering human health and not damaging the ecological environment of the water area. In the process of aquaculture, the prevention and control of diseases and insect pests of aquatic animals must adhere to the principle of prevention first and treatment as a supplement. The use of fishery drugs shall strictly abide by the provisions of the state and relevant departments, and the production, sale and use of fishery drugs without production licenses, approval numbers and production standards shall be strictly prohibited. Actively encourage the development, production and use of fishery drugs with high efficiency, quick effect, long effect, less toxicity, less side effects and small dosage, and promote the use of special aquatic drugs, biological fishery drugs and fishery organisms
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