Feed additive for preventing soft shell disease of shrimps

Abstract

The present invention discloses a feed additive for preventing soft shell disease of shrimps. A formula comprises the following raw materials in weight percentages respectively: 1-5% of vitamin A, 1-5% of vitamin C phosphate ester, 2-4% of inositol, 5-13% of calcium lactate, 15-20% of shell powder, 8-10% of magnesium sulfate and 5-7% of vitamin D. The product prepared by the method supplements andmaintains the vitamins and minerals needed for growth of shrimp shells, regulates calcium deposition, improves hardness and smoothness of the shrimp shells, promotes formation and deposition of chitin and calcium in body, improves ratio of synchronous shelling, enhances body's resistance to stress, and at the same time has effects on protecting liver, relieving toxins, promoting digestion and absorption, and improving feed utilization. The used raw materials in the additive are stable in sources and low in price. A production technology is simple.

Description

technical field [0001] The invention discloses a feed additive for preventing shrimp soft shell disease. Background technique [0002] Macrobrachium rosenbergii, also known as Malaysian prawn, commonly known as big-headed shrimp, is one of the large freshwater shrimps. Macrobrachium rosenbergii has the characteristics of large body, fast growth, easy breeding, plump and delicious meat, and is deeply loved by farmers and consumers. Love, in recent years, with the continuous expansion of breeding scale and the increase of stocking density, long-term feeding of high-protein feed in large quantities, resulting in water pollution, coupled with the degradation of seed germplasm, the disease of Macrobrachium rosenbergii has gradually increased, especially Macrobrachium rosenbergii The occurrence of soft shell disease not only affects the survival rate of culture, but also has adverse effects on the transportation and quality of adult shrimp. Contents of the invention [0003] Ai...

AI Technical Summary

Problems solved by technology

[0002] Macrobrachium rosenbergii, also known as Malaysian prawn, commonly known as big-headed shrimp, is one of the large freshwater shrimps. Macrobrachium rosenbergii has the characteristics of large body, fast growth, easy breeding, plump and delicious meat, and is deeply loved by farmers and consumers. Love, in recent years, with the continuous expansion of breeding scale and the increase of stocking density, long-term feeding of high-protein feed in large quantities, resulting in water pollution, coupled with the degradation of seed germplasm, the disease of Macrobrachium rosenbergii has gradually increased, especially Macrobrachium rosenbergii The occurrence of soft shell disease not only affects the survival rate of aquaculture, but also adversely affects the transportation and quality of adult shrimp