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A breeding method and technology of Penaeus vannamei, applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems of small body weight, slow growth of Penaeus vannamei, and low breeding density
Inactive Publication Date: 2020-07-07
上海开太鱼文化发展有限公司
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Problems solved by technology
Therefore, in ordinary culture, the culture density is small, the growth rate of vannamei is slow, the body weight is small, the time to reach the commercial standard is long, and the yield is low.
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preparation example Construction
[0064] The preparation method of the domesticated food comprises the following steps:
[0065] 1) fresh banana peels and fresh stems of Dendrobium candidum are beaten into paste;
[0066] 2) activating the yeast dry powder;
[0067] 3) According to the proportion, mix the activated yeast, the fresh banana peel made into paste, the fresh stem of Dendrobium officinale and other raw materials, and ferment under the conditions suitable for yeast fermentation to obtain domesticated food.
[0068] In step 2), the activation of the yeast dry powder is an existing technology, and conventional methods can be used for activation, such as activation with glucose water. As specifically listed in the examples of the present invention, every 450 g of dry yeast powder can be activated with 150 grams of glucose and 10 liters of pure water at 35°C.
[0069] Preferably, in step 3), the fermentation condition is: sealed fermentation at 35-38°C for 1-10 hours.
[0070] By adopting the domestic...
Embodiment
[0078] (1) Preparatory work: Penaeus vannamei is cultured using a culture pond system and a freshwater culture method; the culture pond system includes but is not limited to: a pool unit and a greenhouse, and the greenhouse covers the entire pool unit.
[0079] The pool unit includes several independent aquaculture pools arranged together, the area of each aquaculture pool is 16-80m2, and the depth of the aquaculture pool is 0.3-1.0m. In this embodiment, there are 9 breeding pools, each of which has an area of 20 square meters, and the water depth of each breeding pool is 0.3 to 1.0 m. According to the actual situation, there are often many aquaculture pools, even dozens of them arranged together. There is no limitation regarding the shape and size of the breeding pond.
[0080] Aquatic plants can also be planted in the breeding pool. In the present embodiment, the breeding pool adopts cement construction, so aquatic plants are planted in the seedling tray. The seedling...
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Abstract
The invention belongs to the technical field of aquaculture, and particularly relates to a penaeus vannamei aquaculture method. The method comprises the following steps of (1), shrimp seed stocking, wherein high-quality penaeus vannamei larvae are selected as shrimp seeds and placed in an aquaculture pond system for stocking, the aquaculture pond system comprises a water pond unit and a greenhouse, and the greenhouse covers the entire water pond unit; (2), aquaculture temperature, salinity and dissolved oxygen control; and (3), aquaculture feeding, wherein in a penaeus vannamei aquaculture process, daphnia is adopted as the feeding bait or one of the feeding baits. By the adoption of the aquaculture method, the penaeus vannamei can be subjected to circular and high-density aquaculture allthe year round, without limitation of natural conditions. In addition, by adopting the aquaculture method, the market standards can be met only by half of the aquaculture time of a general aquaculturemethod in the prior art, and the penaeus vannamei is higher in yield and better in quality.
Description
technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for cultivating Penaeus vannamei. Background technique [0002] Vannamei white shrimp, scientific name Vannamei shrimp, Penaeus vannamei. It is a wide-temperature and wide-saline tropical shrimp, belonging to Arthropoda, Crustacea, Decapod, and Swimming suborder. It is native to the waters of the Pacific coast of South America and is one of the three world-recognized excellent shrimp species. It looks exactly like Chinese prawns and Moji prawns, and its average lifespan can be at least 32 months. Adults can be up to 24cm long, with a thin carapace. The normal body color is light blue-gray, and there are no markings on the whole body. The legs are often chalky, so they are called white-legged shrimps. Penaeus vannamei has thin shell and fat body, delicious meat, high meat content and rich nutrition. [0003] Since my country introduced it in the 1990s,...
Claims
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