One, the error that chooses premix 1, choice brand is blind. The premix breed on the market is at present various, quality is uneven. Monitor administrative demand to feed product quality according to the country, the product of every quality qualification, must have: ⑴ product label, label content includes product name, raise to use composition of date of article of object, approval, nutrition to assure value, usage, dosage, suttle, production name of date, factory, the site of factory. ⑵ product manual. ⑶ product certificate of approval. ⑷ is to should have registered trade mark. Mastered these basic knowledge only, ability choose and buy arrives eligible product. Afore-mentioned 4 lack also is not eligible product, had better not buy. 2, pay attention to overly pack. Product quality is a product the comprehensive report of immanent quality and explicit quality. The immanent quality of the product is the nutrient index that points to a product, the dependability that is like a product, economy; The explicit quality of the product is the appearance that points to a product, color, odour. Have partial breed aquatics door when selecting feed product, often slant the surface that overweight sees feed, pack how, it is to read color, sweet, taste next. Because feed market competition is intense, the fluctuation of lubricious, sweet, flavour in outer packing and product kongfu, but the product is immanent quality fails to rise however, breed door do not understand, often be duped. So, a few credit should be picked when selecting feed product the product of moderate of good, price, want to choose the product that the normal manufacturer that feeds an experiment through raise produces especially. 3, beyond the mark covet is cheap. Common saying says " one minute price " of a minute of goods, this has stated reason. Produce character to measure good feed, as a result of all wool and a yard wide, often price is high, the product with low price also often quality is low. When the choice, cannot see a bag of feed want how many money only, and should see its nutrition assure a value, press the price that recommends recipe computation feed, can do raise to feed an experiment when necessary. Long-term raise feeds the premix with nutrient insufficient content, cultivate birds can appear phenomenon of have loose bowels, diarrhoea, grow of birds of block up cultivate normally already so, want to cost medical expenses again, increase breed cost. 4, optional change recommends a recipe. Of all kinds premix has what respective course calculates to recommend a recipe, these recipes are scientific and reasonable commonly, cannot change at will. For example, the beans dregses of rice cannot change colza dregses of rice or cotton dregses of rice, corn also cannot change wheat, more cannot the dosage that beans of optional increase and decrease dregses of rice, cause protein content exorbitant or insufficient, the influence grows development, reduce economic benefits. 5, mixing uniformity is poor. Current, the country breeds for the most part door when making up feed, be to adopt artificial mix. Artificial agitate, uniformity short of asks, affected the use result of premix badly. The coefficient of variation of feed mixing uniformity that raise feeds must not is more than normally 10% , want conditionally to buy mixer, dilute should undertake to premix before agitate, feed and premix agitate are even and rear can use. 6, not proper of use means, method. 2, use premix notice 1, check the number is entered. Should mix correctly by sort of different cultivate birds different grow, growth phase chooses breed of different proportional premix, energy feed is added should accurate, agitate wants even. Chaos of avoid by all means is used. 2, change premix wants successive. Sudden change premix cultivate birds is incommensurate, the influence is collected feed and grow. Virgin material dosage should increase gradually in using, reduce old stuff dosage, about a week time transfers to use new premix completely. 3, should press recommend recipe formula feed. A lot of breed an use premix often the experience by oneself, informal change recommends a recipe, cause each nutrition index to cannot satisfy cultivate birds each period grow need. 4, premix is unfavorable and direct use, unfavorable rush with boiled water or evaporate is boiled, lest destroy nutrient material. 5, do not mix the premix of premix and other breed use, lest affect the result. 6, lay aside puts time to should not be too long, time grows, premix can decompose metamorphism, lubricious flavour changes completely. General period of efficacy is the summer most 3 days, other season must not exceed 6 days. Should lay aside is put in ventilated, dry, avoid smooth, shady and cool place, lest be affected with damp be affected with damp is degenerative,cause a loss.
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