Hybrid pelteobagrus fulvidraco breeding method for preventing and controlling Edwardsiella diseases
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A breeding method and the technology of yellow catfish, which are applied in fish farming, antibacterial drugs, and pharmaceutical formulations, etc., can solve problems such as increased bacterial resistance, susceptibility to fatty liver, and ineffective control of the epidemic, and achieve the goal of inhibiting Deposition in the liver and abdominal cavity, resisting Edwardsiella infection, and improving the body's metabolic capacity
Inactive Publication Date: 2020-11-03
FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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The course of the disease is long, and the treatment is difficult and the treatment cycle is long. At the same time, it is difficult for the general oral medicine to break through the blood-brain barrier of the fish to reach the lesion, which makes it difficult for the medicine to be effective, which seriously affects the healthy and sustainable development of the yellow catfish farming industry and product quality and safety.
[0005] At present, the outstanding problems in the field of prevention and control of Edwardsiosis in hybrid yellow catfish are as follows: 1. The prevention and control of small parasites such as trichomonas and oblique tube worms are not systematic and targeted, and the measures are not in place, often waiting until the outbreak of pests Corresponding treatment mea...
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Embodiment 1
[0051] The area of the fish pond where the test mainly raises hybrid yellow catfish is 6,000 square meters, the average water depth is 2.0 meters, and the silt depth is 20 to 25 centimeters.
[0052] A kind of hybridization peltaceae culture operation step of preventing and controlling Edwardsiella is as follows:
[0053] (1) Disinfection before stocking
[0054] On February 21, 2017, 30 cm of new water was injected into the pond, and nicotinamide with a content of 85% was used at 0.4 g / cubic water body to kill the brood mussels of the larvae; on March 5, new water was injected to a depth of 1.8 rice.
[0055] Before stocking all fish species, place the fish species in a mixed solution with a concentration of 30.01 g / L for medicated bathing. Each 50 kg of fish species is equipped with an oxygen-increasing filter head at 15W, and the medicated bath time is 10 minutes. The mixed solution is uniformly prepared by mixing sodium chloride (NaCl), copper sulfate (CuSO4) and trich...
Embodiment 2
[0068] In the experiment, the commercial fish pond of hybrid yellow catfish was mainly raised, with an area of 10,000 square meters, an average water depth of 2.3 meters, and a silt depth of 15 to 20 centimeters.
[0069] A kind of culture operation step of the hybridization peltaceae of preventing and controlling Edwardsiella is as follows:
[0070] (1) Disinfection before stocking
[0071] On February 13, 2018, 30 cm of new water was injected into the pond, and nicotinamide with a content of 85% was used at a rate of 0.4 g / m3 to kill the brood mussels of the larvae. On February 25, new water was injected to a depth of 2.0 rice.
[0072] Before stocking all fish species, place the fish species in a mixed solution with a concentration of 30.01 g / L for medicated bathing. Each 50 kg of fish species is equipped with an oxygen-increasing filter head at 20W, and the medicated bath time is 8 minutes. The mixed solution is uniformly prepared by mixing sodium chloride (NaCl), copp...
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Abstract
The invention relates to a hybrid pelteobagrus fulvidraco breeding method for preventing and controlling Edwardsiella diseases, and belongs to the technical field of aquaculture. The method comprisesthe following operation steps of (1) before stocking, carrying out targeted control over parents of whole-pond glochidia, and putting fingerlings of hybrid pelteobagrus fulvidraco into a mixed solution for medicated bath before stocking; (2) fingerling stocking: stocking hybrid pelteobagrus fulvidraco fingerlings, bighead carp fingerlings, silver carp fingerlings and crucian fingerlings in a mixedmanner; (3) feeding special puffed floating granulated feed for pelteobagrus fulvidraco in the whole process; (4) enhancing immunity: from the middle ten days of May to the middle ten days of October, adding an immunopotentiator into the feed in the whole process; (5) water quality substrate improvement: from the middle ten days of May to the middle ten days of October, respectively and regularlyusing microbial preparations such as bacillus, lactic acid bacteria, photosynthetic bacteria and EM bacteria for regulating the water quality; and (6) regularly expelling insects: from June to September, using a protozoa insect repellant once in the morning of sunny days monthly to expel trichodiniasis, chilodoniasis and the like in a targeted manner every month. The morbidity of the hybrid pelteobagrus fulvidraco is reduced to be less than 20%, and the mortality is reduced to be less than 15%.
Description
technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a breeding method for preventing and controlling the Edwardsiella disease of hybrid yellow catfish. Background technique [0002] Yellow catfish (Pelteobagrus fulvidraco) Commonly known as Ang Ding, Ga Ya Zi, Huang Gu Zi, Huang La Ding, etc., it belongs to Siluriformes, Paliidae, and Peeled catfish. It is widely distributed in major freshwater waters in my country, especially in rivers and lakes in the middle and lower reaches of the Yangtze River. Its meat is tender and delicious. It has no intermuscular thorns and high nutritional value, and is favored by consumers. It is one of the economical fish farming species that has developed particularly rapidly in my country in recent years. [0003] During the breeding process of yellow catfish, there are problems such as the growth rate of male yellow catfish is significantly higher than that of females in the same br...
Claims
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