The Study Of Preparation Of Premixture For Out-spray Within Hot Sensitive Elements To Aquatic Feed

The paper in view of the high lost of the heat-sensitivity component in the feed processing process influenced by the high temperature and humidity studies the preparation and the stability of the aquatic feed outside spray suspension, obtains the best formula of the preparation of suspension.Selected crystallization Vitamin C, the pepsin, the Vitamin A three kinds of typical heat-sensitivity matter as the adding component of the suspension , the soybean oil as the continuous phase of the suspension,the lecithin, the single glyceride, the span 60 and three kind of emulsifiers combinations as the suspension dispersing agent use two steps to prepare suspension, after compared the method which the ultrasonic wave and stirs, determined uses the way of mechanical agitation, rotational speed 100r/Min, time 15min. In the experiment discovered the surface active agent joined has weakened the powder pellet surface again reunion, could enhance the physical stability of the disperse system greatly, and in chose the dispersing agent in the combination,GMS and span-60 combination effect was best.Spurts spreads the experiment to use differently spurts spreads the craft to determine this craft to the heat-sensitivity component protection effect, determined uses method which two time spurts spreads, two time spurts spreads the fat quantity is 10g the oil /500g feed. This article by chooses the material law, the determination Vitamin C content, the determination coefficientof variation, and spurted compared with the different feed quantity spreads the time to spurt spreads the uniformity the influence, the feed quantity is time 250g spurts spreads the uniformity remarkably to be lower than 500g the feed quantity.Therefore, in the preparation working procedure the feed amount used decides as 500g. The test result also also indicated, in chooses the feed quantity in the scope, different spurts spreads in the time the CV value not to surpass the country to the feed product mix uniformity related standard (CV <10%).In the chemical stability experiment has compared the different dispersing agent to the heat-sensitivity nutrient protective function, has determined the best dispersing agent combination for the single glyceride and the department plate 60 combinations, compared with dispersing agent different amount used to heat-sensitivity nutrient protection effect, determination best increase proportion 0.3%, compared with dispersing agent different allocated proportion to heat-sensitivity nutrient protection effect, determination best allocated proportion: Department plate 60: The single glyceride is 7: 3.Through to stirs, spurts spreads, feeds in the process various heat-sensitivity component around survival rate determination, discovered the increase dispersing agent the suspending liquid obvious is good in for increases the dispersing agent the suspending liquid.Through in feeds in the process to Vitamin A and Vitamin C the survival rate determination, discovered in immerses in the process their survival rate to be able to appear the phenomenon which drops suddenly, suggested applies this conclusion in to the feed water resistant time request short aquatic product animal fodder. Using this formula carries on when the determination to the suspending liquid physics stability discovered its stability has the drop.