The role of calcium supplementation in aquaculture

Aquaculture ponds, if you cultivate a variety of aquatic products for a long time, then it is easy to appear lack of nutrients such as calcium and phosphorus, and then have a negative impact on the quality of aquatic products. Therefore, in order to grow aquatic products healthily and rapidly in the process of aquaculture, it is necessary to pay timely attention to the color of pond water quality and the survival of aquatic products, and flexibly implement calcium supplement measures according to the actual situation to promote the healthy growth of aquatic products.

Reasons for calcium supplementation of freshwater aquaculture products

Many kinds of aquatic products are phytoplankton in the water, and calcium is one of the essential nutrients for the growth of phytoplankton in the water. Calcium is the main component of the cell wall of phytoplankton, if the lack of calcium, the growth rate of algae in phytoplankton will slow down, resulting in difficulties in fertilizer and water, some aquatic plants are easy to rot, and the color of water is easy to mix; for freshwater culture, the quality of water is strictly required, and appropriate hardness and pH are needed to protect water quality. Calcium can not only stabilize the pH value of water bottom and water quality, but also alleviate the impact of water, reduce the toxicity of heavy metals in water, promote the rapid reproduction and growth of beneficial organisms in water, and accelerate the regeneration of nutrients in water. Regular application of calcium-rich nutritional products can solve the difficulty of fertilizer and water, regulate and improve a variety of dangerous water color; calcium is an important component of bones and scales of freshwater aquaculture, if lack of calcium, farmed aquatic products will appear slow speed of hard shell and molting death.

Benefits of calcium supplement for freshwater aquaculture products

2.1 Comprehensive benefits of calcium

The supplement of calcium in the process of freshwater culture is to supplement all kinds of nutrition to the products. In all kinds of nutrition, the content of protein is the most important, which is not only an indispensable part of tissues and organs, but also an important part of biological hormones and antibodies. Insufficient fat will lead to the decrease of protein utilization and absorption rate, and the metabolism of aquatic products is irregular. Vitamin C is a key factor in promoting the healthy growth of aquatic products, and the lack of vitamins will reduce the survival rate of aquatic products. Minerals are also essential to the growth of aquatic products. In the process of intensive freshwater culture, minerals can not meet the needs of aquatic products, so it is necessary to supplement the amount of minerals from calcium, but the amount of minerals can not be too much. too much can cause aquatic product poisoning. Immunity enhancer is an indispensable nutritional element of aquatic products in the process of freshwater aquaculture. Proper use of immunity enhancer can improve the survival rate of aquatic products and promote the healthy growth of aquatic products.

2.2 benefits of calcium gluconate

The supplement of calcium gluconate can promote the absorption of calcium by aquatic products, promote the molting and hard shell of aquatic products such as shrimp, crab and clam, and increase the physique of aquatic products. Calcium contains high-quality energy, which can help aquatic products quickly restore their physical fitness and physique and enhance their own resistance. Calcium gluconate can be eaten with daily diet, can also be used on rainy days and after typhoons, and can reduce the chance of floating head. Calcium gluconate is rich in carbon source complexing agents, which can promote the reproduction of algae, and the effect of fertilizing water is particularly obvious, which can improve the anorexia of aquatic products after using pesticides and bad weather. The role of calcium in Freshwater Culture

The organ development and amputated limb regeneration of freshwater cultured shrimps and crabs are completed by molting and molting, but the speed and success rate of molting and molting are determined by the content of calcium in shrimp and crabs. Only when the amount of calcium is sufficient, the size of shrimp and crab can be increased after molting and molting successfully. at the same time, it can improve the resistance of shrimp and crab, improve the survival rate and the economic benefit of culture. Putting enough calcium into fresh water can increase the content of calcium in water, promote the reproduction of algae, make the water quality fertile, and provide natural oxygen and resistance hormones for aquatic products.

4 timely supplement of calcium

4.1 when to supplement calcium

Generally look at the living condition of aquatic products. When shrimp and crab molting is unsuccessful or soft-shell shrimp and crab die, calcium should be replenished in time. When the water warms up, the temperature is unstable and the temperature difference between day and night is large, the seedlings of shrimp and crab are relatively easy to react. At this time, the body calcium content of shrimp and crab is insufficient, it is especially easy to die from shelling. For aquatic products, such as shrimp, calcium can be supplemented when eating less before molting, and super active calcium can be used to spray 1 mu of water; for algae die and the water environment changes greatly, irritant drugs are sprayed immediately to prevent the reaction of aquatic products. At this time, it is mainly spraying 1 packet of active calcium and 1 mu of multivitamins.

4.2 how to supplement calcium

In freshwater ponds, 2.5 kilograms of calcium dihydrogen phosphate can be added per mu of water depth in the case of fertilizer and water supplement, which can not only supplement the nutrients needed by the water body, but also help algae to reproduce rapidly. Supplying calcium fertilizer and water before seedling release can not only fertilize water but also supplement calcium, which creates a good living condition for aquatic products. When calcium is added during water transfer, the photosynthesis of floating organisms can be used to increase the capacity of oxygen in the water and balance fungi and algae.