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How to Clear Wild Trash Fish from Fish Ponds? Four Methods to Solve It Easily
When filling, changing water, and feeding aquatic plants in intensive ponds, wild trash fish or their eggs such as sharpbelly, topmouth gudgeon, crucian carp, loach, and grass shrimp inevitably get mixed in. These wild trash fish not only have strong food-grabbing ability, a large feeding volume, and low economic value, but also reproduce quickly. In addition, carnivorous predatory fish such as snakehead and catfish can also swallow cultured fry. Therefore, various measures must be taken in aquaculture management to remove wild trash fish. 1. Kill the wild trash fish in the pond in advance. Before stocking fry, drain the pond water, let the pond bottom freeze and sun-dry for a period of time, then add 20-3
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Detailed Explanation of the Living Habits and Farming Techniques of Yellow Catfish
1. Living habits. The yellow catfish, commonly known as the yellow bone fish. It is a bottom-dwelling freshwater fish; during the day it prefers to stay on the bottom, where it is not very active, and at night it swims to the middle and upper layers of the water to feed. Farming yellow catfish requires clear water with high dissolved oxygen, and the suitable temperature is 0-38°C. The yellow catfish is a gentle carnivorous fish that likes to eat small fish, small shrimp, snail and mussel meat, and artificial compound feed. 2. Fry rearing. The stocking rate per mu (1 mu = 667 sq m) is 100,000-120,000 fry; they can be stocked in fertilized pond water to grow natural food
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What Kind of Fish Is the Snakehead? A Complete Guide to the Snakehead
The snakehead, also known as the black fish, live fish, cai fish, snakehead fish, filial fish, and so on, belongs taxonomically to the order Perciformes, the family Channidae, and the genus Channa. It is widely distributed in all kinds of waters north and south of the Yangtze River in China. It has few bones, tender flesh, a delicious taste, and is very rich in nutrients. According to measurements, every 100 grams of snakehead flesh contains 19.8 grams of protein and 1.49 grams of fat, and is rich in calcium, phosphorus, iron, zinc and other nutrients needed by the human body, making it a good tonic for those recovering from illness and for the weak, whether young or old. People like to eat snakehead after surgery to remove blood stasis and generate new tissue, nourish the blood and promote contraction, and accelerate
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Autumn fishing has its finer points: these key tips you need to master
1. Pay attention to weather conditions: Autumn seine fishing must be done on a sunny day, when the weather is cool, around dawn before the pond fish surface for air, because at this time the impact on the pond fish is smallest, and the freshly caught fish can be supplied to the morning market in time. Hazy, muggy weather is not suitable for seine fishing, to avoid causing a large number of dead fish. In addition, when the pond fish are surfacing for air or there is fish disease, etc., it is also not suitable to seine and catch them. 2. Restrict feeding before catching: After fish eat their fill, their oxygen consumption increases, and when the net is drawn to catch them they will be startled, jump and dart away, which easily causes death
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How can easily confused species of premium fish be accurately identified?
With the development of the socialist market economy and the improvement of people's living standards, fisheries production has taken a new leap forward. In particular, in recent years the development of premium fish has been extremely rapid. However, because some premium fish are extremely similar in appearance and rather difficult to distinguish, this has caused certain difficulties for farmers and consumers in purchasing and identifying them. The identification methods for currently easily confused species of premium fish are presented below for reference. 1. Yellow catfish, long-barbel yellow catfish, darkbarbel catfish, and glossy yellow catfish. Among these four fish, the pectoral fin hard
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Detailed Recipe and Cooking Techniques for Crab with Fish Maw
Cuisine: Anhui cuisine Ingredients: live crab...750 g, soy sauce...5 g, mandarin fish meat...200 g, white pepper powder...5 g, oil-puffed fish maw...50 g, edible alkali...5 g, chopped scallions...5 g, dry starch...10 g, chopped ginger...5 g, wet starch...3 g, cilantro...50 g, chicken broth...100 g, refined salt...5 g, lard...15 g Preparation: 1. Wash the crab, steam until cooked, rinse briefly, and pick out the crab meat (set the crab legs and crab roe aside). Chop the cilantro.
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Introduction to three methods for harvesting warm-water fish
1. Seine netting method. This is currently a relatively common harvesting method for "warm-water fish." The net is generally made of nylon, or the middle section is made of nylon. The net length should be about 1.5 times the width of the pond surface, the net height should be about 2 times the pond water depth, and the mesh size should be such that none of the pond fish get gilled in the net. The advantages of this harvesting method: first, it catches all types of pond fish, which can meet the demands of different fish vendors; second, during the seining process, the bottom mud and pond water are stirred up, which plays a role in fertilizing the water and aerating it. Of course, this harvesting method also has obvious disadvantages: first, the seining
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The snakehead Channa asiatica is a prized tonic fish in South China.
Channa asiatica belongs to the order Perciformes, suborder Anabantoidei, family Channidae, genus Channa. Common names: in Guangdong it is called qixing fish, shanhua fish, shanban fish, diancheng fish, chengxing fish, and xingguang fish; in Guangxi it is called xing fish and zhanggong fish; in Taiwan, China it is called youdai. English names: Snakehead, Chinafish. Its form resembles the spotted snakehead. The head is large, wide and flat, the snout short and bluntly rounded, the mouth large, and the nasal tubes thick, extending forward beyond the upper lip. The scales are relatively large, and the scales on top of the head are enlarged but irregular; the scales on the sides of the head are also relatively large. Dorsal fin and anal fin
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Production and Processing Techniques and Methods for Spicy Fish
Silver carp is a well-known freshwater fish species with a relatively large yield, but because its flesh is fine and full of small bones, its value is relatively low. At the same time, among similar products on the market, there are many small fish and few quick-prepared larger fish. To increase its added value, the author, through repeated experiments, developed soft-packaged spicy fish. The processing technology and formula are introduced as follows: 1. Raw and auxiliary materials: silver carp (about 0.35 Kg), salt, monosodium glutamate, Sichuan pepper, fennel, cinnamon, chili, pepper, tsaoko, ginger powder, cooking wine, soy sauce, scallion white, fresh ginger,
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How to determine if fish are suffering from pollution poisoning
Fish deaths can be caused by many factors such as disease, oxygen deficiency, toxic algae, mechanical injury, and pollution poisoning, and pollution poisoning is the most common type of fatal cause. Below are several methods for visually judging common types of pollution poisoning, for reference in production. Heavy metal pollution poisoning. Heavy metals refer to metals with relatively high density, such as lead, manganese, zinc, etc. The gills of poisoned fish appear grayish-white and secrete large amounts of mucus, forming flocculent deposits that block the gills and cause respiratory impairment; poisoned fish often float and swim at the water surface.
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