Calcium source for breeding unio in freshwater and the producing and utilizing method thereof

Abstract

The invention discloses a mussel calcium source for pearl cultivation in fresh water and manufacturing and using methods thereof. Each 1000g of mussel calcium source comprises 400-850g for calcium oxide, 100-450g for mussel shell powder, 10-100g for vinegar, 10-100g for compound amino acid, 1-10g for vitamin D and 5-40g for calcium binding protein. The manufacturing method is that: a. the calcium oxide is mashed; b. the mussel shell is mashed and then added with vinegar for acidification; c. the materials from steps a and b are fully mixed with compound amino acid, vitamin D and calcium binding protein to form mussel calcium source for pearl cultivation in fresh water; d. the mixture is packed. The using method is that: a. the calcium source packed in bag is suspended to water with mussel shell for cultivating pearl; b. the times for suspending calcium source are that: one time / 30 days in spring, one time / 20 days in summer and one time / 40 days in autumn; c. the temperature surrounding the calcium source is kept between 15 DEG C and 35 DEG C. The invention has the advantages of scientific prescription, low cost, easy usage and being capable of effectively improving fresh water pearl output and quality.

Description

technical field [0001] The invention relates to a calcium source and its production and use method, especially related to the freshwater pearl mussel calcium source and its production and use method. Background technique [0002] After more than 30 years of development, the production of freshwater pearl cultivation has reached more than 1,000 tons, with an annual output value of more than 4 billion yuan. Yet along with the increase of pearl output in recent years, the quality problem of pearl is increasingly serious threat to the development of this breeding industry. Pearls are composed of 90% to 95% calcium carbonate, 10% to 5% conchiolin, a small amount of water and inorganic salts. The formation of high-quality pearls is mainly limited by two aspects: one is the source of calcium; the other is the rate of calcium absorption and secretion by the mantle and pearl sac. And in the existing actual production, people often use quicklime (calcium oxide) as the most economica...

AI Technical Summary

Problems solved by technology

It often leads to unstable calcium concentration and short-term effect, so that pearl mussels cannot absorb the calcium needed for a long time and convert it into active calcium that can form high-quality pearls

As a result, the proportion of low-quality pearls in the current market is as high as 60%, making China's pearl industry at a disadvantage in international competition