What makes shrimp more profitable?

The South American white prawn, also called Litopenaeus vannamei, is a type of marine shrimp native to the coastlines of South and Central America. Because the shrimp meat yield is high, the adaptability to the environment is strong, and the feed source is wide, it quickly spread around the world. In recent years, brackish water has generally been used for farming. It has certain euphoric properties. In terms of nutrition, white prawns are a high-protein aquatic product. Meat does not contain fat, so it is an excellent source of protein. In major cities, prawns are popular.

In the process of breeding white prawns. The dietary protein content is always a key factor. Because the shrimp needs a large source of high-quality protein, which can be animal or plant-based, to grow, Therefore, soybean meal and rapeseed meal can be used as the main material sources in the diet of shrimp, and animal protein such as fish meal can be added at the same time. A high-protein diet can greatly improve the growth rate of white shrimp.

Factory-recirculated aquaculture of white prawns There are multiple models of subdivision. Pure factory aquaculture The other model of factory farming is the bioflocket farming model, which has emerged in recent years. Because the feeding habits of the South American white shrimp are very varied and include animal and plant feed as well as some microorganisms in the water, plankton can be their food source. Therefore, in a relatively closed aquaculture water body, the waste from Nanbai shrimp is transformed into some biological microbiota through biological culture. We call this bio floc.

 

Bioflocks feed shrimp. It is necessary to timely remove ammonia, nitrogen, subsalt, and another excrement from the water. Through some carbon-based medium, it will, in time, be transformed into biological bacteria. These biological bacteria can not only absorb ammonia, nitrogen, salt, and other harmful substances in the water. It is also high in protein. Therefore, it can be used as food for South American white shrimp. But in the process of doing it, it is necessary for managers to timely monitor various indicators of water bodies. At the same time, the carbon-nitrogen ratio and other indicators are effectively controlled.

to maintain a reasonable amount of biological floc. If the biofloc density is too high, the water's oxygen consumption will increase dramatically. Then the dissolved oxygen in the water will go down. It may threaten the survival and growth of the South American white shrimp. They grow in low oxygen for a long time. The shrimp's resistance plummets. Therefore, in the catkin cultivation mode, once the operation is improper, there will be a high incidence of shrimp pests and diseases. This is also the main reason for flocs' relatively low success rate in recent years. This model is mainly in Jiangsu Rudong and Qidong, and other places have been promoted. Typical is the Rudong shack model. in a shed of about 400 square meters. long-term adherence to a large number of brown sugar-based carbon sources converts harmful substances in water into biofloc. At the same time, maintain the water's high concentration of highly dissolved oxygen. can treat the water quality at the same time. It can also increase the food source diversity of South American white shrimp. It reduces the feed rate to some extent. Cost savings.

During freshwater aquaculture of Penaeus chinensChinensisved oxygen in water is a very important indicator. when the density of the prawn reaches ten kilograms per cubic meter. They need a lot of dissolved oxygen in the water. Once the dissolved oxygen in the water gets below 5 mg per liter, the South American prawn is at risk of dying in a short period. Long-term low-oxygen water will cause the resistance of white shrimp to decline and then make them more susceptible to disease, resulting in yield reduction. Therefore, continuous aeration of the water body is very important. Under the condition of high-density culture, we can consider using a pure oxygen dissolving oxygenator to oxygenate the water body to ensure the stability of dissolved oxygen in the water body.

Using technology, we have achieved freshwater breeding and high-density breeding of South American white shrimp with high output efficiency per unit. But we can sell locally and directly to end customers, which will increase our unit price and profit accordingly. At the same time, because it is a small water body with small ponds for breeding, we can control the number of sales at will. At the same time, if we carry out step farming, shrimp can be produced all year round, maximizing the farm's benefit.