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A Detailed Guide to Selecting and Using Fishery Drugs: A Practical Guide for Farmers
When selecting fishery drugs, the "three certificates" must be complete (production license, production approval certificate, execution standard number), and there must be a product quality certificate. Legitimate fishery drug manufacturers have applied for registered trademarks; the trademark design, image, text, etc. are indicated on the packaging, labels, and instructions, and are marked with the words "registered trademark" or a registration mark. The quality of the inner and outer packaging materials of fishery drugs should be good. Generally, the packaging is marked with instructions for use, trade name, chemical name, drug composition, content, production approval number, manufacturer name, address, production batch number, production date, validity period, indications or functions and main treatments,
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Effective prevention methods for fish surfacing in summer
I. Prediction of fish surfacing 1. In summer, strong sunlight and high temperatures during the day, and weather in the evening. Sudden thunderstorms or a south wind during the day with high water temperature, then a sudden turn to a north wind at night, causing the water temperature to drop rapidly. 2. Continuous overcast and rainy weather, low air pressure, muggy conditions, weak wind, and foggy weather. 3. Long periods of clear weather without rain, fish feeding vigorously, dense water color, and sudden weather changes. II. Rescue of fish surfacing, 1. Add fresh water Adding fresh water increases dissolved oxygen, improves water quality, and expands the range of activity for fish. 2. Turn on the aerator
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A Complete Analysis of New Techniques for Clearing Ponds and Removing Wild Fish
Currently, the commonly used pond-clearing drugs in production include quicklime, tea seed cake, bleaching powder, bleaching essence, trichloroisocyanuric acid, etc. 1. Quicklime pond clearing. Quicklime (CaO) reacts with water to form strongly alkaline calcium hydroxide, causing the pond water pH (acidity and alkalinity) to rise sharply to 11-12, thereby killing wild miscellaneous fish, harmful organisms and various pathogens. 2. Tea seed cake pond clearing. Tea seed cake is a round cake pressed from the residue left after oil extraction from the seeds of the oil tea plant. Method of use: break the tea seed cake into small pieces, soak in
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The blue sapphire fish is a valuable fish that serves ornamental, angling and culinary purposes
The blue sapphire fish belongs to the order Perciformes, family Sciaenidae. It is abundant in the United States and naturally distributed along the Atlantic coast of the United States. It is named for its gorgeous coloration, with a silvery-gray back that shimmers with pale blue fluorescence. The blue sapphire fish has delicious meat, with a flavor superior to the famous grouper. It is an important food and game fish in the United States and enjoys the reputation of America's "number one fish". In 2003, the Marine Branch of the China Association of Senior Professors applied for project approval to introduce it, and in 2004 fry were bred at Laizhou Huachi Aquatic Products Co., Ltd. Following on-site inspection, 400,000 blue sapphire fish fry have now been successfully bred, of which 120,000 are commercial fry over 5 cm
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Bag-disinfection method for fish fry and fingerlings stocked in spring
"Bag disinfection" of fish fry and fingerlings is a new disinfection method summarized and used by fish farmers in recent years. Its advantages are that it is simple and convenient, costs little, can reduce fish diseases, and gives a high survival rate. The method is: 1. Operation (1) Place the nylon bag holding the fish fry and fingerlings at the pond edge (untie the bag opening), with the water level inside the bag level with that outside. (2) Pour the medicinal solution into the bag and shake well, and observe the activity of the fish fry and fingerlings; after the disinfection time is completed, put them into the pond. 2. Drug preparation and soaking time (1) 3%-5% salt solution, soak the fish fry and fingerlings for 20 minutes, can prevent and treat bacterial diseases
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How to Make Delicious Fish Head in a Clay Pot: A Detailed Guide to the Home-Style Method
Main ingredient: 1.5 kg fish head (preferably bighead carp head). Secondary ingredients: 2 liang fatty-lean pork, 1 liang dried shrimp, a little scallion, ginger and garlic. Seasonings: 2 liang lard, 2 liang vegetable oil, a little salt, soy sauce, MSG and cooking wine. White pepper can be added according to personal taste. Cooking method: Remove the gills from the fish head and wash it clean, then blanch it in boiling water, remove the dark outer skin, add a little salt and cooking wine, and marinate for 10 minutes. Mince the scallion, ginger and garlic. Heat vegetable oil in a wok over the fire, put in the fish head and fry until golden brown, then remove. Then use the wok to stir-fry the pork briefly, add
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How to Keep Clown Knifefish? Breeding Methods and Precautions
Clown Knifefish: Clown Knife (Notopterus chitala), also known as: East Asian Knife, Bowfin, Bao Kong Humpback Fish, Flower Knife Fish. Native to Thailand, Myanmar, and India, size 90 cm, optimal temperature 28°C, highly adaptable, able to grow in ordinary water quality, suitable water temperature above 24°C. Grows fast, easy to keep. A nocturnal fish, mainly carnivorous, can be fed minced meat and fish chunks, most fond of live fish and shrimp, cannot be kept mixed with small fish. Male and female fish
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What to pay attention to when fishing in midsummer
1. Preparation before fishing: 1 day before fishing, appropriately reduce the amount of feed, and promptly remove obstacles such as tree branches (stumps) in and around the pond as well as grass residue pollution on the water surface, so that seining can proceed smoothly. 2. Fish at the right time: generally choose the early morning when the weather is relatively cool and fish activity is normal for fishing. Never fish when the weather is muggy and hot or when fish are gasping at the surface or under other abnormal conditions, so as to avoid unnecessary economic losses. 3. Standardize operations: choose nets with an appropriate mesh size, put the net in slowly and pull it out quickly, and minimize the number of hauls; never
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Qinghai Successfully Introduces a New Fish Species from Russia
The new fish species introduced from Russia for trial breeding - the whitefish (Coregonus peled) - will be promoted on a large scale in Qinghai Province. The introduction of this "foreign fish" has not only broken the previously rather monotonous aquaculture pattern in the province, but also moved Qinghai's fisheries one step closer to the international market. In order to make the whitefish breeding and cultivation technology more mature in the province's aquaculture sector, Qinghai Province recently invited Alexander Ivanovich Litvinenko, president of the Research Academy of the Siberian Fisheries of the Russian Federation and academician of the Russian Academy of Sciences, to visit Qinghai for inspection and technical analysis, and to provide market information.
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Can Turtles and Fish Be Kept Together? A Few Things to Know Before You Start
Turtles and fish can be kept together. For mixed turtle-fish culture, the stocking ratio is as follows: per 0.07 hectares, stock 300 silver carp (specification 20-25 g each), 80 bighead carp (specification about 25 g each), 120 grass carp (specification 50-125 g each), 80 common carp (specification about 25 g each), and 80 blunt snout bream (specification 12.5-25 g each). Then stock about 1,200 turtles aged 3-6 years. Fish fingerlings are best stocked before the Spring Festival, while turtles are best stocked after the beginning of spring, when the water temperature has stabilized above 15
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