Feed additive capable of improving high-temperature stress resistance ability of mariculture animal, and preparation method and application thereof

Abstract

The invention belongs to the technical field of feed, and particularly relates to a feed additive capable of improving the high-temperature stress resistance ability of a mariculture animal, and a preparation method and application thereof. The feed additive comprises chromium nicotinate, various vitamins, various trace elements, glutamine, cysteamine hydrochloride, allicin, astragalus polysaccharide, berberine hydrochloride, bacillus subtilis, lactic acid bacteria, sodium bicarbonate, methionine, lysine, tryptophan, potassium dihydrogen phosphate and digestive enzyme, and is added into mariculture animal feed at an addition ratio of 0.1-0.5%, the high-temperature stress resistance ability of the mariculture animal can be effectively improved, the ingestion rate, the digestion rate, the growth rate and the survival rate of the mariculture animal are obviously improved, and the physiological steady state and the immunity of the mariculture animal are improved. Meanwhile, raw materials adopted by the feed additive have a stable source and a reasonable price cost, and the feed additive disclosed by the invention has a simple production technology and does not have any bad influence onfeed palatability.

Description

technical field [0001] The invention belongs to the technical field of feed, and in particular relates to a feed additive for improving the high temperature stress resistance ability of seawater cultured animals, a preparation method and application thereof. Background technique [0002] Aquaculture has become a pillar industry in our country, and fish farming has also grown. In the process of fish farming, the temperature of aquaculture water is one of the most closely related environmental factors to the growth of fish. Water temperature directly affects the growth and development of fish by affecting their metabolic efficiency and food intake. Fish are ectothermic animals whose body temperature changes with the temperature of the surrounding water. All kinds of fish have their upper and lower limits of temperature and the optimum temperature zone suitable for growth. In the appropriate temperature range, as the water temperature increases, the fish's feeding, respiratio...

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Problems solved by technology

In addition, high temperature will also reduce the digestion and absorption rate of fish feed, increase the release rate of carbon, nitrogen, and phosphorus in excrement, cause rapid deterioration of water quality, and eventually further induce fish diseases

[0005] To sum up, it can be seen that the continuous rise of seawater temperature caused by long-term abnormally high temperature weather will reduce the dissolved oxygen content in seawater, thereby seriously affecting the normal physiological activities of fish. , the growth is hindered, the disease occurs frequently, and the mortality rate is high, which has caused huge losses to the mariculture industry.

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