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Methods for the Prevention and Control of Fish Diseases in Rainbow Trout (Oncorhynchus mykiss) Reared in Brackish Water
Rainbow trout (Oncorhynchus mykiss) is a cold-water, euryhaline fish, noted for its delicious flesh and rich nutrition, with high economic value, and is one of the world's fine aquaculture species. Jingtai County is one of the most arid areas in central Gansu Province, lacking freshwater resources, but it has a certain flow
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Detailed Explanation of Key Points for Intensive Snakehead Farming Technology
The northern snakehead is commonly known as snakehead, spotted snakehead, ink-head fish, etc. At present, the main species farmed in China are the northern snakehead, the spotted snakehead and their hybrids. The northern snakehead is a valuable economic fish among the Channidae, with large individuals, fast growth, high yield and high economic value; its flesh is delicate and delicious
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What to pay attention to when raising crayfish through the summer
First, make good preparations before stocking: the pond must have good water inlet and drainage facilities. Around the pond, use bamboo strips, mesh gauze, etc. to enclose an anti-escape wall 50 cm high. Set up shrimp habitat sites in the breeding water area, such as installing tiles, bricks, stones, mesh sheets, old tires, grass
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Common Knowledge on the Prevention and Treatment of Fish Diseases Every Fish Keeper Must Know
Aquaculture is a high-input, high-output farming industry. In the production process, how well fish diseases are controlled is directly related to farming yield and profitability, so doing a good job of fish disease prevention and treatment in aquaculture is particularly important. So-called fish disease prevention and treatment means
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Technical Points and Methods for Cage Culture of Catfish Explained
Cage culture of catfish, adult fish yield of 17.5 kg per sq m, economic benefit is 5-10 times that of grass carp and common carp. The main techniques are as follows: 1. Setting up cages, graded rearing Select streams, rivers, lakes, reservoirs and other wide waters with clean water quality, high dissolved oxygen, and suitable pH to set up
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How to raise crayfish? Five major questions answered at once
1. What conditions are needed? Answer: Crayfish have strong adaptability to the environment and can grow in various water bodies such as lakes, ponds, ditches, and rice fields. The water source must be sufficient, with a water depth of about 1 m. 2. Can crayfish be raised in a goldfish tank? Answer: Yes, but it cannot form
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What are the three main benefits of polyculture of fish and soft-shelled turtles in ponds?
The soft-shelled turtle farming industry is one of China's high-quality and high-efficiency special aquaculture industries. Since its development began in the early 1970s at the end of the last century, annual output has now reached more than 100,000 tons, ranking first in the world. Although the current market price of commercial soft-shelled turtles is low, market sales remain undiminished. However, today
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Scientific Management Methods and Technical Key Points for Fish Ponds in Autumn
The autumn climate is cool, the water temperature is suitable, the fish feed vigorously and grow rapidly. This is a key stage for achieving high yields in aquaculture ponds, so production practices must attach importance to the management of fish ponds in autumn. 1. Reasonable feeding. Based on the fish stocking density, survival rate, and the growth weight gain and feeding situation of the previous stage
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Technical Points and Precautions for Catfish Farming in Rice Paddies
In recent years, fish farming in rice paddies in Wuyishan City, Fujian Province, China, has seen further development in terms of farming methods, scale and species. Stocking local catfish or Clarias leather (Clarias fuscus) in mountain rice paddies has good economic benefits. The techniques for farming catfish are summarized and introduced as follows:
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Key Technical Points for Large-Scale Fry Rearing of Pufferfish
Pufferfish eggs are small, with an egg diameter of only about 1.1 mm; the gonadosomatic index is high and the number of eggs carried is large, which creates the prerequisite conditions for large-scale fry rearing. For large-scale fry rearing, the following technical steps should also be well controlled: First, having a sufficient number of broodstock with well-developed gonads is
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