Five key points in the Nutrition Program of cultured River Crab

1. Liver protection is an important metabolic organ of river crab, which plays the functions of detoxification and detoxification, hematopoiesis carrying oxygen, secretion of digestive enzymes and absorption of nutrients. with the shelling and growth of river crab, the load of liver becomes larger and is prone to pathological changes, resulting in the decline of physique and immunity, thus leading to bacterial diseases. Therefore, the usual prevention should be regularly taken "Pingganbao + Nutrition Express + yeast cell wall polysaccharide" or "Ganlikang + Nutrition Express + yeast cell wall polysaccharide".

two。 The body temperature of river crab is often close to the water temperature of 20: 25 ℃, which is lower than the suitable temperature of 35-40 ℃ of digestive enzymes in river crab, so the endogenous enzyme is insufficient. Usually to prevent enteritis disease should be regularly taken "Xiaoshi Jianwei Bao + Nutrition Express + Glian" 3. The ability of calcium-supplemented river crab to absorb calcium ion in water is stronger than that of compound feed. When the crab is molting, it is necessary to absorb the calcium ions from the shell into the body (so the shell of the crab looks yellow, etc.). Only when the total amount of calcium in the shell is equal to the total amount of calcium in the body can it be shelled smoothly. After molting, the "soft crab" should fully absorb water, especially the calcium and phosphorus of the water body to promote the hardening of its shell. So a week before shelling, you should regularly take "AD calcium + Nutrition Express" to supplement your ability and nutrition to enhance your vitality. Shelling peak period spilled "calcium ribonucleate + detoxification stress spirit" to promote hard shell and recovery. 4. As the saying goes, "grow a shell in July and August and gain weight in September and October." The activity of river crab is frequent and its appetite increases greatly in the high temperature season in summer, which is the key period for the growth of river crab. Feed fine fodder in the later stage, grow fat and promote fat, and feed enough food. However, the crab itself has a short stomach and large intestine, gluttonous, and has poor digestibility of high-protein feed. The high-temperature bait is easy to deteriorate in summer. Therefore, the late feeding should be regularly added to promote fat, protein absorption products "fat Zhuangbao". 5. AD calcium, nutritional adhesive generally farmers like to feed dry feed directly, but dry feed. There will always be a small amount of powder, and the palatability is poor, the powder scattered in the water not only pollutes the water quality but also wastes feed, and even sinks into the bottom of the pond, damaging the bottom quality and water quality, and the dry material is easy to absorb water, especially in the ponds with poor water quality. The disease caused by the high diet of bacteria, viruses or nitrite may be caused by the intake of river crabs. Therefore, when feeding, add a small amount of clean water before feeding to reduce the risk. It is best to cooperate with the environment-friendly nutritional adhesive in the feed, and the feed is wrapped and fed, which can not only induce the feed, but also enhance the nutritional digestion and avoid the pollution of the bottom silt. AD calcium is a new generation of emulsified calcium, which is not only rich in highly active ion calcium, vitamin A, D and other nutrients, but also has the advantages of fast calcium supplement, high absorption rate and rapid shell consolidation. It also has good viscosity and can dissolve in any proportion with water, keeping stickiness without secondary pollution to water quality and sediment. It's probably the best bonding product so far.