Method for feeding crayfishes by nano feeds
A lobster and feed technology, applied in the direction of animal feed, animal feed, application, etc., can solve the problems of increased fishing difficulty, increased production cost, short growth period of juvenile shrimp, etc. The effect of quality, strong decomposition and transformation ability
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[0029] The preparation method of described nano sustained-release carrier is:
[0030] (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;
[0031] (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
[0040] The preparation method is the same as in Example 1.
[0041] In the juvenile stage of growing shrimp, fish out and divide into five ponds, 500 in every pond, put in respectively the microbial shrimp fertilizer and the common shrimp of the embodiment of the present invention 1 according to the dosage of 200kg per mu in the four ponds fertilizer (control 1, produced by Beijing Century Ames Biotechnology Co., Ltd.), and the other tank did not put shrimp fertilizer (control 2), but put in the same amount of common fish food, the rest of the feeding amount was the same, and the cultivation environment was the same. After 2-4 months of breeding, compare the yield and the growth status of the shrimp, and use the porous structure of hydroxyapatite to adsorb the fertilizer components in the inner grid of the carrier to achieve the purpose of slow release. Hydroxyapatite is also biodegradable, and the resulting degradation products are various trace element ions, which can be rea...
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