Production method of freshwater fish compound feed

Abstract

The invention discloses a production method of freshwater fish compound feed. The production method comprises the following steps: (1) preparation of main feed: taking 10-15mg of sodium oxide, covering the surface of blocky sodium oxide with a layer of meltable film, coating the film with 20-40mg of sucrose, putting in a ventilated place for blow-drying, and finally, forming a dark-red block; (2) preparation of mixed feed which comprises a medicated leaven extract, Chinese prickly ash powder and a mixture of red jujube flesh granules and gourd seed powder: expanding the medicated leaven extract, the Chinese prickly ash powder and the mixture of red jujube flesh granules and gourd seed powder through an extrusion-expansion machine to obtain expanded and granulated mixed feed; and (3) preparing mint fiber, connecting one end of the mint fiber to the main feed, and connecting the other end of the mint fiber to the mixed feed. The freshwater fish compound feed can effectively reduce the occurrence of liver and gall syndromes and three diseases of freshwater fishes, and solves the problems that adult freshwater fishes can not be fed with high-protein feed and the feed is difficult to select for mixed fishes.

Description

technical field [0001] The invention belongs to the technical field of animal feed, in particular to a method for producing compound feed for freshwater fish. Background technique [0002] Fish is a basic nutrient for humans and one of the most important nutrients. In order to improve the production performance of freshwater fish and prevent bacterial diseases, the early method was to add some antibiotics, such as olaquindox, nitrofurans, bacitracin zinc, etc., to the feed of freshwater fish. This method is simple and can achieve the desired effect, but its negative effects are: 1. The antibiotics that have not been metabolized are accumulated in the fish, causing the antibiotics in the fish to exceed the standard, or even seriously exceeding the standard, endangering the health of consumers; 2. Long-term use Antibiotic feed additives reduce the immune function of freshwater fish, leading to drug resistance of bacteria, increasing the risk of disease outbreaks and the diffi...

AI Technical Summary

Problems solved by technology

Among these additives, enzyme preparations can improve feed utilization, reduce the side effects of anti-nutritional factors such as non-starch polysaccharides, and reduce the incidence of nutritional diarrhea, but there are problems such as unstable enzyme activity and inaccurate effects; oligosaccharides can enhance Animal immunity, multiple activities of promoting the proliferation of beneficial bacteria in the intestinal tract of animals and directly adhering to harmful bacteria, but the impact of oligosaccharides on animal physiological functions is related to factors such as animal feed, the stage of the animal, and the physiological state of the animal They are closely related, thus limiting the use of oligosaccharides; the research on Chinese herbal medicine additives has a long history, but the theoretical basis is still unclear, and the effects of different prescriptions vary greatly, the amount of addition is large, and the cost is high; The growth of probiotics, the resistance to the reproduction of pathogenic bacteria, the promotion of feed digestion and absorption, the provision of nutrition, and the enhancement of animal immune function, etc. However, the strains selected by most microecological preparations have poor heat resistance and cannot be pelletized, which seriously affects the microecology The use of preparations; antimicrobial peptides are biologically active small molecule polypeptides induced in organisms, have broad-spectrum antibacterial activity, and have a strong killing effect on bacteria. Some antimicrobial peptides are effective against some viruses, fungi, protozoa and Cancer cells can also be killed, and can even improve immunity and accelerate the wound healing process, but antimicrobial peptide products are still in the research stage and have not reached the capacity of industrial production

[0004] In order to improve breeding efficiency and comprehensively utilize water resources, farmers often adopt polyculture mode for breeding. In order to increase the growth rate of freshwater fish, people have used high-protein compound feed to raise freshwater fish. Although high-protein compound feed promotes freshwater The growth of fish has become the direct cause of "hepatobiliary syndrome" in adult freshwater fish, and the breeding benefits are greatly reduced

The use of low-protein compound feeds, although reducing the incidence of "hepatobiliary syndrome" in freshwater fish, has seriously affected the growth of freshwater fish, and will also affect the breeding benefits.

For this reason, farmers can only change the stocking mode and change from polyculture to monoculture, but the waste of water resources and feed is large, and the benefits are also unsatisfactory.

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