Feed additive capable of improving disease resistance of cobia and preparation method of feed additive

Abstract

The invention discloses a feed additive capable of improving disease resistance of cobia. The feed additive comprises the following components in percentage by mass: 22%-25% of euphausiid powder, 5% of phospholipid, 2% of vitamin E, 0.1%-0.2% of beta-glucanase, 8%-10% of garlic, 8% of cuttlefish oil, 20%-30% of 50% choline chloride, 8%-10% of radix codonopsis, 5%-6% of radix astragali and 13%-18% of wolfberry leaves. Compared with the prior art, the feed additive has the beneficial effects that (1) by virtue of the ratio of various fatty acids in phospholipid and cuttlefish oil, the requirements in the rapid growth process of cobia can be met, the hypoimmunity of the organism caused by the lack of fatty acids is avoided, and the immunity of the organism is improved; (2) by virtue of beta-glucanase, the content of anti-nutritional factors and non-starch polysaccharides can be reduced, the digestive absorption capacity of cobia can be improved, and the disease resistance can be improved; and (3) by virtue of garlic, radix codonopsis, radix astragali and wolfberry leaves, endoparasite of cobia can be removed, so that the culturing success rate of cobia is increased.

Description

technical field [0001] The invention relates to a cobia feed additive, which belongs to the technical field of compound feeds, in particular to a feed additive capable of improving the disease resistance of cobia and a preparation method thereof. Background technique [0002] Cobia, belonging to Perciformes, Perciformes, and Cobia, is distributed in the Mediterranean Sea, Atlantic Ocean, India, and Pacific Ocean. It is also distributed along the coast of my country. It is a warm-water fish in open seas. Because it has many advantages such as fast growth, strong adaptability, few diseases, and easy to catch, and the meat has more thorns, less thorns, delicious taste, and rich nutrition, it is very popular among farmers and consumers. Generally, the price per kilogram is more than 80 yuan, and the economic benefits of breeding are relatively high. Cobia can be cultured in my country's coastal waters. It grows fast and has high economic benefits. It is considered to be a fish ...

AI Technical Summary

Problems solved by technology

And along with the continuous expansion of the cobia breeding scale, the continuous improvement of the degree of intensification, the breeding mode based on feeding fresh trash fish has been far from being able to meet the needs of its intensive farming; The market is in urgent need of high-efficiency, environmentally friendly cobia high-quality compound feed due to the disadvantages of easy corruption and deterioration, breeding of bacteria, and eutrophication of aquaculture water.

However, the current research on compound feeds for cobia breeding biology and nutritional needs lags far behind the development of cobia farming industry, with poor disease resistance, lack of systematization and serialization, and it is difficult to meet the large-scale and intensive farming needs of cobia