First, the advantages of premix:
Premix = vitamin + mineral + carrier; additional energy feed and protein feed are required.
Advantages: 1 The cost of premix is ​​low; 2 raw materials are controllable, corn and soybean meal are fresh; 3 health care, treatment and other drugs are convenient.
Disadvantages: 1 A large amount of labor, resulting in increased labor costs; 2 need to stock raw materials, increase capital investment, reduce the utilization of funds!
Concentrate = premix + protein feed; need to add energy feed
The advantage is: 1 when the price of soybean meal is high, the cost can be appropriately reduced; 2 when preparing the material, you can not buy soybean meal and reduce the labor.
Disadvantages: 1 cost and premix are 0.1-0.2 yuan / kg higher; 2 protein content is low because of the addition of soybean meal is not enough, suitable for feeding soil pigs!
Full price material = premix + protein feed + energy feed; processed by crushing, mixing, granulating, etc.!
Advantages: 1 feeding is convenient; 2 low moisture, easy to store; 3 waste is smaller than powder.
Disadvantages: 1 cost is too high, compared with premix, it is expensive 0.2-0.4 yuan / kg; 2 ingredients are uncontrollable, because the composition of the feed is not visible; 3 by 70-90 ° C granulation, will destroy vitamins ( About 50%), acid and enzyme preparation activity is reduced by about 80%, xylanase is reduced by 90%!
Second, the composition and characteristics of different series of premixes:
In general, 1% of the premix can be called core material, and the most I see is the "1%, 3%, 4% and 5%" premix. To a certain extent, the smaller the formula ratio, the higher the cost performance.
0.1-0.5%.
Ingredients: vitamins, trace elements, antioxidants, anti-mold agents, etc.; Features: improve feed utilization, reduce formula costs, increase growth rate, ensure livestock and poultry health;
Use: large and medium-sized feed mills with high equipment and technology level
1%, 2%
Ingredients: Adding amino acid, drug and other growth promoters on the basis of 0.5% series;
Features: saving feed protein, avoiding the trouble of purchasing single amino acids and drugs, promoting growth, preventing disease;
Use: feed mill and aquaculture plant in a certain processing capacity and technical level
4%, 5%, 6%
Ingredients: added some protein, calcium, phosphorus, salt, etc. on the basis of 1%;
Features: add a full range, only corn, soybean meal, sub-powder, you can prepare high-quality full-price feed;
Use: feed mill, aquaculture plant and farmer
Third, the premix processing technology points:
(1) Particle size: The preparation of feed additives or additive premixes first encounters a process problem, that is, the amount of trace active ingredients is less, and it is not distributed enough in the full price; only the volume of the trace active ingredients can be reduced. Add more particles.
(2) Carrier: The particles of the active ingredient are enlarged, and the active ingredient is loaded and integrated, and the material is called a carrier.
(3) Type: There are two kinds of inorganic carriers and organic carriers;
(4) Capacity: The additive premix is ​​composed of various feed additives of different capacities, and thus stratification occurs. To balance this capacity difference, a suitable carrier is selected. The capacity of the organic carrier is small, and the capacity of the inorganic carrier is large.
(5) Adhesion: The better the adhesion of the carrier, the easier it is to stick the active ingredient. The organic carrier has good adhesion, and the inorganic carrier has poor adhesion. The vegetable oil can improve the adhesion of the carrier and can eliminate the static charge.
(6) Water content: Moisture is an important factor for the dissolution and destruction of the active ingredient, and the water content of the organic carrier must be controlled below 10%, preferably below 8%.
(7) Carrying microorganisms: The less microorganisms the carrier attaches, the better. Corrupted and moldy plants should not be used as carriers.
Fourth, the advantages of premixing expansion:
Compared with concentrated materials and full-price materials, premixes can reduce the cost and the raw materials are fresh and controllable. There is a clear advantage that it is convenient to add auxiliary drugs for health care treatment. At present, farmers may often add symptomatic treatment drugs, improve breeding efficiency, some additives for disease prevention and health care, and so on. To raise the main, raise the weight in the prevention, prevent the weight of the treatment!
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