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Common Abnormal Phenomena in Whiteleg Shrimp Farming and Their Management
Abnormal phenomenon 1: Before stocking, the pond water cannot be fertilized despite repeated fertilization, or the water color is very poor. (1) Causes: Serious exceedance of toxic substances such as heavy metal ions, or massive reproduction of harmful bacteria and zooplankton in the pond, or growth of filamentous algae and blue-green algae (qingni moss) in the pond,
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How to prevent and treat common diseases in river crab farming
I. Shell ulcer disease 1. Symptoms: Ulcerative lesions occur on the crab's exoskeleton. In the early stage, there are many brown spots on the shell, with each spot having a slightly reddish depressed center. In the late stage, the edges of the spots turn black, the ulcers in the center deepen, and the shell is eroded into holes, exposing muscle
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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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Prevention and Treatment of Three Common Diseases in Caged Laying Hens
Cage rearing of chickens means raising chickens in cages welded from metal wire, with different types of cages designed according to chicken breed, sex and age, including chick cages, growing chicken cages, laying hen cages, breeder cages and rooster cages, etc. This can increase stocking density and save feed, among other benefits.
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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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What are the common feeds used in meat pigeon farming?
1. Energy feed (1) Corn: high in calories, low in fiber, highly adaptable, easy to digest and absorb, and high-yielding and cheap, it is known as the "king of feed." Yellow corn is rich in carotene and is a good source of vitamin A, but after storage the vitamin A content
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Experience and key technical points for mixed culture of scorpions and ground beetles
The ground beetle is a commonly used medicinal material, and raising it alone does not yield very high profits. By using a scorpion-rearing room to raise ground beetles and scorpions together, the profits produced by the ground beetles can cover the heating, feed and labor costs of scorpion rearing, while the scorpions provide pure additional profit. Under mixed culture conditions, the hatched
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Prevention and Treatment Methods for Common Diseases in Sturgeon Farming
Bacterial enteritis in sturgeon 1. Symptoms and causes: This disease is caused by bacteria. The symptoms are bleeding in the abdomen and mouth, redness and swelling of the anus, and emaciation of the fish. 2. Prevention and treatment method: Feed medicated bait containing 0.2% furazolidone, and continuous feeding for 5-6 days can cure it. Sturgeon swollen mouth disease 1. Symptoms and
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Detailed Explanation of New Techniques for Artificial Freshwater Farming of River Crab
River crab, commonly known as crab, also called hairy crab, mitten crab, etc. It belongs to the class Crustacea, family Grapsidae. The cephalothorax is squarish-oval, generally 6-7 cm long, usually green. The chelipeds are powerful and densely covered with downy hair, and the walking legs are flattened laterally and long. Wild river crabs live in the muddy beaches of the embankments of rivers, lakes and marshes,
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Prevention and Treatment Methods for Common Winter Diseases in Goats
I. Braxy: This disease strikes suddenly, leaving almost no time for treatment, so immune prevention is the main approach. Commonly used vaccines are the triple vaccine against braxy, struck, and enterotoxemia, or the quintuple vaccine against braxy, struck, enterotoxemia, lamb dysentery, and black disease. Subcutaneous injection of 5 ml; immunity develops 2 weeks after injection, with a protection period of more than six months.
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