South American white shrimp phenoprost form, development process and lesion – Aquatic Forum – China Animal Husbandry Website – A useful animal husbandry website

South American white shrimprer industry is a high-risk, high-input, high-income industry, high-risk mainly breeding shrimp, and once the incidence is difficult to cure, give many shrimp agricultural losses. Among the common diseases of South America to shrimp, South American white shrimp phenoprosis is the biggest problem that plagues farmers. The liver pancreas is the largest organs outside the southern white peer, which is the most vulnerable organ of South America. The liver and pancreatic is damaged, causing slow growth, size is uneven; the liver and pancreas is seriously damaged, causing a lot of shrimp death, and even the whole army is not covered. The liver and pancreatic is damaged, causing slow growth, size is uneven; the liver and pancreas is seriously damaged, causing a lot of shrimp death, and even the whole army is not covered. So, how should we prevent shrimp vital diseases? Let’s first understand the morphological structure, developmental process and lesion processes of shrimp and the lesion. 1, the morphological structure of the shrimp phenxers: the liver pancreatic (dirty), also known as the middle gland, is the main digestive gland, located in the middle and back of the chest, the heart front, yellowish brown, pair. The liver of shrimp has become a block, located in the middle and rear of the head chest, surrounded by the front of the Helichen and the inner intestine. 1 pair of liver tubes, from the abdomen of the Helichen and the middle intestines into the digestive tract.

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Fig. 1 Purple Digestite System 2 The growth of the body is gradually growing and perfect. 1-2cm shrimp seedlings: shrimp seedlings After entering the pond from the seedling field, the nutrient composition of the bait changes, so the liver color changes. Observing the naked eye, the shrimp seedling liver of the seedling is black, and the color of the shrimp in the pond is yellowish yellow, the liver tissue is not full, the contour is relatively clear, no white film or very blurred. 2-3cm shrimp seedlings: liver color is brown, full of liver tissues, clear linear lines, white film visible. 3-5cm shrimp seedlings: liver color is brown, liver tissue is very full, the contour and liver split are clear, and the white film is obviously located below the brown. 3, the process of leapphan pancreas: liver disease performance: the process of liver lesions can be observed by the naked eye, often manifested in color: tan (positiveOften) → light red or dark red (initial, exemplary) → slightly white (medium, start atrophy) → completely whitening (later, manifested as erosion). Changes in liver-critical diseases: liver red: liver burden agglomeration, or bacterial invasion, inflammation, liver immunity decline; liver yellow: abnormal digestive function, nutrient metabolism; liver whistle: Liver infection bacteria or poisoning After that, energy metabolism is disordered, the liver sugar dollar, the protein is exhausted; the liver is black: drug residual or physicochemical index causing detoxification hepatocytes (secreted cells) necrosis (irreversible); liver shrinkage: comprehensive factors

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4, Prevention of shrimp and liver and pancreatic disease: Effective prevention and treatment on the initial stage of shrimp liver and pancreatic, once in the later period, the liver is white, erosion, often followed by pixia disease, yellow rickets, black rickets, rotten rickets, Red body disease, white spot disease and other diseases. Especially viral diseases, it is difficult to treat, and the best situation can only reserve the lobster with lighter and healthy, and the loss is often relatively large. Therefore, the prevention and treatment of the disease of the shrimp and pancreas should be prevented, focusing on protecting the liver and pancreas. Regular water quality, substrate environment improvement, often peeled water, so that the shrimp pond has been in a benign substance circulation, forming a dynamic stable ecosystem, which is the most basic guarantee for shrimp vital health. In addition to this, a bile acid should be added to the shrimp feed periodically. There are test evidence and production practice prove that adding bile acids in shrimp feed can effectively prevent inflammation of shrimp and pancreas, protect the health of shrimps, reduce the incidence of shrimp, and the addition of bile acids can promote fat…… Improve the utilization of shrimp on cholesterol and multi-unsaturated fatty acid, promote the success of shrimp symbroses, and the bile acid can bind or decompose endotoxin within the intestinal direction, prevent endotoxin from entering the liver through the intestinal mucosal barrier. Reduce the absorption of the intestinal toxins, increase the intestinal barrier effect, prevent endotoxins from harm to intestinal, liver and even peers; 3, bile acid can damage the cell membrane of bacteria, make cell integrity damage, thus Inhibition of excessive proliferation of intestinal harmful bacteria, maintain intestinal microorganisms; 4, bile acid can be enhancedFor shrimp liver function, promote liver detoxification detoxification, reduce the injury of poisonous substances on the liver of shrimp, and prevent the gap of the shrimp of the shrimp and increase the resistance to shrimp resistance, and increase the shrimp to 10%. (Source: Longchang Movement)

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South American white shrimp pancreas, the shrimp liver pancreatic lesions, the shrimps are dead, the shrimp and the liver pancreatic

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