Method for using nanometer slow release feed to breed mandarin fish
A nano slow-release, osmanthus fish technology, applied in fish farming, animal feed, animal feed, etc., can solve the problems affecting the healthy and rapid development of mandarin fish aquaculture, prolonging the breeding cycle of cultivation and listing, unfavorable production and improvement of benefits, etc. problem, to achieve the effect of increasing the drug loading and adsorption capacity, reducing the accumulation of toxic substances, and having little impact
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[0028] The preparation method of described nano sustained-release carrier is:
[0029] (1) The silicon hydroxyapatite, attapulgite, hydrotalcite, montmorillonite, titanium dioxide, calcite, kaolin according to 35-45: 10-15: 10-15: 8-10: 8-10: 7-8 : 5-7 parts by mass are mixed, added to a mixed solution of 230 parts of dimethyl sulfoxide (DMSO) and 50 parts of methanol, stirred at 65°C for 60 hours, filtered, and washed with hot ethanol at a temperature of 60°C for 3 Remove excess dimethyl sulfoxide (DMSO) once, put it into a vacuum drying oven, dry at 60°C for 24 hours, grind and sieve to obtain a primary modified compound;
[0030] (2) Mix 1 part of primary modified compound, 15 parts of potassium acetate and 25 parts of distilled water, stir at 50°C for more than 10 hours, and disperse at 30°C for 3.5 hours under the condition of ultrasonic electric power 350W, and then in Disperse for 4 hours under the condition of ultrasonic electric power 250W. Filter, wash with distill...
Embodiment 2
[0035] The preparation method is the same as in Example 1.
[0036] In the sweet-scented osmanthus fish juvenile stage of growth, fish out, divide and raise in the middle of five pools, every pond 500, in four pools, throw in respectively the microbial sweet-scented osmanthus manure fertilizer of the embodiment of the present invention 1 and Ordinary sweet-scented osmanthus fish fertilizer (control 1, produced by Beijing Century Ames Biotechnology Co., Ltd.), the other tank was not fed with sweet-scented osmanthus fish fertilizer (control 2), but the same amount of ordinary fish food was put in, and the rest were fed the same amount. The culture environment is the same, after 2-4 months of breeding, comparing its yield and the growth of sweet-scented osmanthus fish, the nano slow-release additive has good biocompatibility and gastrointestinal mucosal affinity, so that each group loaded with it can It has a controlled release effect, and the drug loading and adsorption capacity...
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