-
A Detailed Explanation of Goldfish Rearing Methods and Key Technical Points
When keeping goldfish, the water must be clear. If it is tap water, it is best to let it sit for two or three days before use. At the same time, change the water frequently. Generally, in summer, change 1/3 of the water every three or four days, and in spring and autumn, change 1/3 of the water every week, and scoop out the excrement and excess feed to ensure the water quality is clean.
-
How to keep Yuanbao fish? A detailed guide to rearing methods
Yuanbao fish is a common ornamental fish in daily life. Because its appearance is red as fire, like the morning sun, and it carries the meaning of bringing luck and fortune, it is deeply loved by fish keepers. So how do you keep Yuanbao fish? 1. Water quality requirements Yuanbao fish like to live in soft water that is weakly acidic and low in hardness.
-
How to keep doctor fish properly? Rearing methods and precautions
Doctor fish come from Turkey, and are a very popular attraction in Japan. It is a special beauty treatment in which the spa therapists are a group of small fish. These small fish have no teeth, and fish with a body length of less than 5 cm belong to the tropical fish category. So how do you keep doctor fish? 1. After doctor fish are introduced
-
Key Technical Points for Rearing Snakehead Fry in Net Cages
1. Stocking density: generally 600-700 3-cm summer fry per square meter, with a harvest size of about 6-8 cm. The summer fry stocked must be strictly graded and screened so that the size is uniform at stocking, and the stocking density should be adjusted appropriately according to size. 2. Feed and feeding
-
How to Keep Koi? Fry Selection and Adult Fish Rearing and Management Methods
I. Fry Selection After hatching, the fry are reared for 20 to 30 days. When the fish body grows to about 3 cm, selection begins, culling the inferior and keeping the superior, strengthening the growth rate, so as to protect the traits. Selecting fry is the most important part of obtaining high-quality koi during the rearing process.
-
Beginner's Guide to Guppy Keeping: Detailed Explanation of Breeding Methods and Techniques for Newcomers
For keeping guppies at home, you can choose your equipment and varieties according to your own circumstances. Those with a larger budget can buy a relatively high-end aquarium, equip it with advanced keeping equipment, and purchase relatively expensive varieties; those with a smaller budget or beginners can
-
Analysis of the Efficient Integrated Farming Model of Fish Rearing in Lotus Root Fields
I. Field Construction The area of the lotus root field should preferably be 1-2 mu, generally 1-1.2 m deep; around the field, culture trenches are dug, 1.5-2.0 m wide and 0.8-1.0 m deep, with the inlet and outlet opened at diagonal corners, so as to keep the field water clean and prevent the accumulation of toxic substances from harming the fish; apply per mu
-
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
-
What points should be noted in sturgeon fry rearing?
With the vigorous rise of sturgeon aquaculture, the price of commercial sturgeon keeps falling, and the profit margin is getting smaller and smaller. Improving the survival rate of sturgeon fry and fingerlings is one of the main means of increasing profits in sturgeon aquaculture. Farming sturgeon in the south generally requires southward relocation and acclimation, which
-
Experience Sharing on Placing Fish-Rearing Cages in Flat-Bottomed Rivers
In flat-bottomed rivers with a water depth of more than 2.5 m and little year-round variation in water level, fish farming with cages works very well. 1) Generally speaking, a height of 50 cm between the cage bottom and the riverbed is sufficient. Leaving a gap between the cage bottom and the riverbed facilitates water flow, which first adds oxygen and second serves to exchange water ⟦4 <p>In flat-bottomed rivers with a water depth of more than 2.5 m and little year-round variation in water level, fish farming with cages works very well. </p><p></p><p>1) Generally speaking, a height of 50 cm between the cage bottom and the riverbed is sufficient. Leaving a gap between the cage bottom and the riverbed facilitates water flow, which first adds oxygen and second serves to exchange water and improve water quality. The height of the cage body can be 2.5-3 m. After this depth is immersed in water, 50 cm of netting is left above the water surface to prevent jumping fish from escaping. It is best to cover the top with netting to prevent birds from stealing and eating the fish. </p><p>2) It must be noted that the cage should be placed in a sunny spot, a place with a gentle flow speed, or a place with backflow. As far as the whole river channel is concerned, backflow areas are often places where fish gather; backflow areas have gentle flow speeds and abundant feed, making them very suitable for fish growth. </p><p>3) If the river channel is not deep, moso bamboo can be driven in as stakes, the cage tied with ropes, and marker lines indicating the cage's draught depth marked on the stakes, making it easy to adjust in time and stabilize the cage depth. Use slip knots for the ropes to make it easy to raise and lower the cage body. </p><p>4) For this fixed-type cage, tie straight strip-like objects along the top and bottom ropes of the cage body; for example, thin bamboo poles can be used for the top and bottom ropes, and iron bars can also be used for the bottom rope, stretching the entire cage flat and straight, avoiding folding of the netting in the water and reducing capacity. Install rings at the four corners of the cage. When in use, fit the rings at the four corners onto the bamboo stakes, and the formed cage will be firmly tied to the bamboo stakes and ready for farming. The rings can also be tied to the bamboo stakes, four on the top and four on the bottom, using pull ropes to control the entire cage body, following the rise and fall of the water level, and adjusting the draught depth of the cage body in time. In places with gentle flowing water, feed is most abundant. When the cage body is flat and straight, the fish are most comfortable. </p>
条件筛选