Preparation process for fattening cream river crab compound feed

Abstract

The invention relates to a preparation process for a fattening cream river crab compound feed and belongs to the technical field of agricultural breeding. The compound feed is prepared from the following materials: high protein flour, peeled expanded bean pulp, fermented bean pulp, fish meal, chicken powder, shrimp powder, sleeve-fish paste, phospholipid oil, soya-bean oil, fish oil, spirulina, choline chloride, zeolite powder, monocalcium phosphate, table salt, yeast hydrolysate, antibacterial peptides, chitosan compound vitamins, compound organic microelements and astaxanthin. By roughly crushing the materials first and then carrying out ultraomicro crushing on the materials, the materials are fine enough. The materials are mixed in grade and can be fully mixed, so that the fusing degreeof the powder and the oil is improved, and follow-up tempering and expanding operations are facilitated. The longer the tempering time is, the longer the contact and mix time of vapor and the powderyfeed is, and the more the added vapor amount is, the more favorable the curing of the river crab feed is. The tempered materials are extruded and expanded, so that starch is fully cured, the proteinsare deteriorated, the antinutritional factors in different feed raw materials are deactivated, and insects are killed and bacteria are sterilized, and therefore, the digestive absorption utilizationof the feed by the river crabs is improved, the intestinal tract irritation is reduced, diseases are reduced, and the water quality is improved.

Description

technical field [0001] The invention relates to a process for making compound feed for fattening and strengthening cream river crab, and belongs to the technical field of agricultural breeding. Background technique [0002] Before river crabs are on the market, farmers generally choose to increase the amount of iced fish to promote the later growth of river crabs and the accumulation of nutrients to achieve creamy yellow and plump. The use of chilled fish is good, but there are disadvantages, the source is miscellaneous, the quality cannot be guaranteed, and it will cause the occurrence of diseases. In addition, it will lead to water pollution. The country's environmental protection requirements are becoming stricter, so the requirements for pellet feed are more urgent. The promotion of river crab feed was relatively early and successful, but there are not many pellet feeds used to replace chilled fish for fattening and strong cream, and there is still a certain gap in the u...

AI Technical Summary

Problems solved by technology

The digestive organs of river crabs are very simple, the intestinal tract is very short, and the excretion time is very fast. Some nutrients in the feed have been excreted without digestion, resulting in waste of feed and pollution of water quality

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