Slowly-sinking puffed compound feed for channel catfish and preparation method thereof

Abstract

The invention relates to a slowly-sinking puffed compound feed for channel catfish and a preparation method thereof and belongs to the technical field of production of puffed feeds for aquatic products. The feed contains fish meal, pork powder, rice protein powder, fermented soybean meal, rapeseed meal, soybean meal, rapeseed dregs, cottonseed meal, rice bran, flour, wheat, soybean oil, monocalcium phosphate, bentonite, 98.5% lysine hydrochloride, 99% DL-methionine, choline chloride, a compound vitamin premix, 35% vitamin C phosphate, vitamin A acetate, vitamin E, a composite mineral substance premix, a micro-ecological preparation, an antioxidant and a mildew preventive. The feed is conveniently eaten by the channel catfish, improves the feeding rate, has good water resistance and has not higher the technical requirement for feeding. In addition, intestinal health of the channel catfish can be improved, then the feed utilization efficiency of the channel catfish can be improved, eventually the growth speed and yield per unit volume of the channel catfish can be improved, and the breeding benefits of farmers can be improved.

Description

Technical field [0001] The present invention involves a spots for fork -tailed feed and its preparation methods. More specifically, the invention involves a spots for a spa fork -tail ingenuity to slowly puffed with feed and its preparation methods, which belongs to the field of puffed feed production technology for aquatic products. Background technique [0002] The spots of the fork tail belong to the shadow -shaped eyes, the family.The natural distribution area of spots for fork -tail is in the central US basin, southern Canada, and parts of the Atlantic coast. It has entered the Atlantic coast extensively in the future. Now it is basically distributed in the United States and northern Mexico.The advantages of freshness and high arrest rate. It has a long history of breeding in the United States. It is one of the main economic fish in freshwater farming in the United States.In 1984, it was introduced by the Hubei Fisheries Research Institute. It has become one of the main fres...

AI Technical Summary

Problems solved by technology

[0012] The first article is that the extruded feed is buoyant, and there is a problem of buoyant feed, and the ultrafine pulverized ingredients pass 50-60 mesh, and the fineness is not enough

[0013] The second part focuses on the control of drug residues in channel catfish. The material type is hard pellets, which has poor water resistance and high requirements for feeding technology.

[0014] The third article focuses on the environmental protection and fishmeal-free channel catfish compound feed and its preparation method. Channel catfish is an omnivorous and partial carnivorous fish. Although the requirements for fish meal are not as high as those of carnivorous fish, a certain proportion must still be used in the formula. fish meal

In this case, the ratio is unreasonable and unscientific

In the optimal solution mentioned in this example, the amount of soybean meal used is as high as 53%, which obviously does not conform to the principles of general nutrition and feed formula. There are many anti-nutritional factors such as soybean antigens and plant lectins in soybean meal, so in aquatic feed formula Usually controlled below 35%, if the dosage is too large, it will have adverse effects on the intestinal tract and body health of aquatic animals

[0015] The fourth article focuses on preventing channel catfish from overwintering and dying. It is a feed used during wintering and has strict restrictions on the use stage.

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