How to choose the bait for the production of pollution-free aquatic products

After joining the WTO, the international market put forward higher requirements for the aquaculture production process. To this end, the state has issued a new version of the “Standard for Feed Hygiene” (GB13078-2001, a mandatory national standard), and the Ministry of Agriculture has also issued the “Safety Limits for Non-Hazardous Food and Compound Feeds for Fishing” (NY5072-2001). According to the above two standards, farmers who want to produce pollution-free aquatic products must purchase and use feed as required.
First, pay attention to whether the feed ingredients meet the requirements of the purchase of feed, processing of raw materials should comply with the provisions of the raw material standards, such as the use of moisture, mold, insects, spoilage and corruption by oil, pesticides, harmful metals, raw materials; leather powder should be Chromium removal and detoxification treatment; soybean raw materials should be subject to the destruction of protein acid factors.
Second, whether the feed meets the health indicators The amount of harmful substances and microbes allowed in fish feed: lead ≤ 7.5 mg/kg, mercury ≤ 0.5 mg/kg, inorganic arsenic ≤ 3 mg/kg, cadmium (shrimp feed) ≤ 3 mg / kg, (other fish feed) ≤ 0.5 mg / kg, chromium ≤ 10 mg / kg, fluorine ≤ 350 mg / kg, olaquindox may not be detected, free gossypol (temperature water omnivorous fish and shrimp feed) ≤ 300 mg/kg, (cold water fish and marine fish feed) ≤ 150 mg/kg, cyanide ≤ 50 mg/kg, polychlorinated biphenyls ≤ 3 mg/kg, isothiocyanate ≤ 500 mg / Kg, mouth oxazolidinethione ≤ 500 mg/kg, oil acid (fish breeding feed) ≤ 2 mg/g, (fish farming feed) ≤ 6 mg/g, (feed for fodder) ≤ 3 Mg/kg, aflatoxin B1 ≤ 0.01 mg/kg, 666 ≤ 0.3 mg/kg, DDT ≤ 0.2 mg/kg, Salmonella not detected.
Third, the feed use guidelines for feed and feed additives must come from companies that have production licenses, and have corporate, industry national standards, product approval number. Farmers should give priority to the use of feed products for the production of pollution-free food, and at least 90% of the feed comes from the certified pollution-free food products and their by-products. It is forbidden to use illicit drugs, excessive addition of trace elements, and failure to use feed additives. Prevent the contamination of feedstuffs by chemical substances during the processing, production, transportation and storage of feedstuffs; prevent mildew in feedstuffs, reduce the nutritional value of feedstuffs and cause metabolites of molds; prevent the contamination of microorganisms such as Salmonella, Escherichia coli, and prions; and prevent the use of Unbalanced nutrition, unreasonable ratio, and use of inefficient feeds contaminate the aquaculture water environment.

The hollow type LED Ot Lamp is designed at this year, this series of lamp outlook is much simple also for the specification, so the hollow type surgical lamp price is most favorable. this series of LED operation shadowless lamp color rendering index can reach above 97, very close to the natural light (natural light color rendering index of 100) of the approximate sunlight color rendering, make the doctor at a very clear area and surgery site ( including vascular tissue and nerve tract) color, can clearly identify the organizational structure of the operation field.

Hollow Type LED Operating Lamp

Hollow Type LED Operating Lamp,LED Operating Theatre Light,LED Operating Room Light,LED Surgery Room Light

Shandong Lewin Medical Equipment Co., Ltd. , http://www.lewinmed.com