Feed additive with effect of improving of nitrogen stress resistance of tilapia mossambica

Abstract

The invention relates to the technical field of aquatic feed additives, in particular to a feed additive for improving the nitrogen stress tolerance of tilapia. Specifically, the feed is added with potato juice as a culture substrate, and after inoculated with brewer's yeast and undergoes four-stage fermentation treatment, It is obtained after high-temperature sterilization and spray drying; it is added to tilapia feed as an additive, and acts synergistically to supplement non-enzyme antioxidant substances in tilapia, capture free radicals in the body, exert antioxidant effects, and protect phospholipid membranes Unsaturated fatty acids, maintain the normal function of the membrane, maintain the integrity of the cell membrane, and help to accelerate metabolism, combine with toxic substances in the body, convert them into non-toxic substances and excrete them from the body, and can also improve the body's stress ability, promote immunoglobulins and antibodies form.

Description

technical field [0001] The invention relates to the technical field of aquatic feed additives, in particular to a feed additive for improving the nitrogen stress tolerance of tilapia. Background technique [0002] The meat of tilapia is delicious and tender, whether it is braised or cooked, the taste is excellent. According to the test, every 100 grams of Nile tilapia meat contains 20.5 grams of protein, 6.93 grams of fat, 148 kcal of calories, calcium 70 mg, sodium 50 mg, phosphorus 37 mg, iron 1 mg, vitamin B1 0.1 mg, vitamin B2 0.12 mg, tilapia has become the main farmed fish in the world and is a freshwater farmed fish cultivated by key scientific research in the world aquaculture industry , and is known as one of the main sources of animal protein in the future, but in high-density industrial aquaculture water, a large amount of ammonia nitrogen will be produced due to the ammonification of residual bait and fish excrement, and a certain concentration of ammonia nitroge...

AI Technical Summary

Problems solved by technology

[0002] The meat of tilapia is delicious and tender, whether it is braised or cooked, the taste is excellent. According to the test, every 100 grams of Nile tilapia meat contains 20.5 grams of protein, 6.93 grams of fat, 148 kcal of calories, calcium 70 mg, sodium 50 mg, phosphorus 37 mg, iron 1 mg, vitamin B1 0.1 mg, vitamin B2 0.12 mg, tilapia has become the main farmed fish in the world and is a freshwater farmed fish cultivated by key scientific research in the world aquaculture industry , and is known as one of the main sources of animal protein in the future, but in high-density industrial aquaculture water, a large amount of ammonia nitrogen will be produced due to the ammonification of residual bait and fish excrement, and a certain concentration of ammonia nitrogen will affect fish The stress will lead to the stress response of the fish body, such as reduced food intake, slow growth, and reduced immunity. If the stress is too long, it may even cause death.