Jumping fish, also known as jumping fish, scientific name: big battered fish. In the past five years, breeding climaxes have been set off in southern Zhejiang, Fujian, Guangxi, and Hainan and are developing at an alarming rate. As China's mariculture research institutes have not yet conducted a comprehensive and systematic study on jumping culture techniques, the current technology for jumping fish farming around the world is generally in the state of extensive primitive exploration and breeding. There are even a considerable number of fish farmers who do not know how to skip fish. For food habits, it is always thought that jumping fish will directly feed on the bait like most farmed fish species. In Xichang Town, Hepu County, Guangxi Province, there were even prawn stocks or sow feeds purchased by farmers that had expired and they were directly put into fish ponds, resulting in the death of skipping fish. At present, the most widely used method in skipping fish farming is the direct release of chicken manure, pig manure or cow dung to fish ponds. Due to this wrong feeding method, most fish ponds have a bad odor. Judging from the information available, the main cause of the large-scale death of fish jumpers was the contamination of fish ponds. Unprepared chicken manure, pig manure or cow dung contain a large amount of harmful bacteria, which is the primary factor contaminating fish ponds. Therefore, if you want to put chicken droppings, etc., you must first use EM (beneficial microbial flora) or other beneficial microorganisms to ferment the chicken droppings for not less than 15 days, and only after the fermentation is complete.
In fact, as long as you observe carefully, it is not difficult to find the feeding habit of skipping fish. After ebb tide, the jumping fish crawls or jumps on the beach using the pectoral and caudal peduncles, touching the surface of the beach with the squatting, like plowing fields, swaying head to side to crawl the benthic algae (mainly diatoms), and eating mud. Organic matter, as well as copepods and roundworms, generally do not directly feed manually fed feeds. From the perspective of the above-mentioned feeding habits of skipping fish, it is necessary to solve the two major problems in order to maintain good skipping fish. The first is to improve and protect the good ecological environment of fish ponds; the second is to find ways to cultivate benthic algae. A common method for improving the pond environment is to divert the water frequently, but this method is not suitable for some fish ponds that are far away from the beach or have higher elevations or by pumping water. Another method is to directly put water amendments in the ponds (Beneficial Microorganisms ). With regard to the issue of how to cultivate benthic diatoms in large-scale culture ponds, China has not yet published the same or similar scientific research results. From the information collected on the Internet, there are many opinions and even contradictions. Therefore, it can be said that China's skipping fish feed industry is basically left blank. When searching for the keywords “jumping fish feed†on the Internet, the only one that can be found is a “diatom composite medium†produced by Guangxi Nanning Keao Bioengineering Co., Ltd. At present, this product has been widely used in the coastal areas of Guangxi. Fujian Xiapu County and Zhejiang Ninghai County have also begun trials. From the collected information, the product works well.
A number of illegal elements were discovered along the coast of Guangxi, using the mistaken view that fish farmers think that fish-feeding also eats materials, and they produce some material-like fish-feeding material (like grass carp is finer and harder than grass carp), neither manufacturers nor brands. No product certification, no product standards. This type of material is mostly dark brown, adding flavor and pigment, smells like a peanut oil flavor, put into the water for an hour or so will be able to release a color similar to the color of diatoms, so that the rapid color of tea green tea. As farmers see this "material" "effective", so the price is very expensive, the price per ton up to 4,000 yuan, a serious violation of the interests of farmers. Due to the high prices of these materials and the small number of feeds per unit area, there has been no case of fish jumping out due to the introduction of such materials. However, the fish growth is slow, slender, and poor in quality.
Judging from the feeding habit of skipping fish, the science of skipping fish feed should be powdery, easy to spread evenly, can improve the soil structure at the bottom of the pond, form a surface that is conducive to the attachment of diatoms, and can provide nutrition for diatom breeding. In addition, it must be conducive to improving the ecological environment of fish ponds. From these characteristics, skipping fish feed is not a true feed (because skipping fish does not directly prey), but it is different from fertilizer (fertilizer is a substance that provides one or more nutrient elements to plants), and it also has feed. And the characteristics of fertilizers have many properties and requirements that feed and fertilizer do not have. For this product, there are too many problems waiting to be explored. Obviously, most farmers directly put chicken manure, pig manure, and cow manure into the wrong place. It is not appropriate to put organic or organic fertilizers for a long time. It is inappropriate to place all the nitrogen, phosphorus, and potassium elemental fertilizers or compound fertilizers. It is difficult for the average farmer to master the fermentation technology of organisms. Therefore, it is recommended that scientific research institutions carry out research on related topics as soon as possible.
In view of the current state of aquaculture technology, it is recommended that a large number of farmers actively collect and study related aquaculture techniques, and start from the daily management of the enhanced jump fish breeding, carefully observe and carefully record the living habits and growth patterns under various climate conditions in different periods of jumping fish. , Sum up the breeding experience, increase the success rate and yield, and obtain greater economic benefits.
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