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Comprehensive prevention and control measures are needed for fish hepatobiliary syndrome
In recent years, with the continuous increase in the intensification of aquaculture, the incidence of fish hepatobiliary syndrome has been rising. Hepatobiliary syndrome can occur in various cultured fish, most notably in common carp and grass carp, and generally the incidence is high in adult fish. There are many causes of fish hepatobiliary syndrome, which can be summarized mainly in the following aspects. (1) Pathogenic microorganism infection. Infections by pathogenic microorganisms such as Aeromonas hydrophila, Edwardsiella, and rhabdovirus and reovirus can directly or indirectly cause hepatitis in fish. Pathogenic microorganisms
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What conditions are needed for the growth and development of straw mushrooms?
1. Nutrition Straw mushroom is a saprophytic fungus that does not contain chlorophyll and cannot carry out photosynthesis to synthesize the nutrients it needs, so these must be supplied from outside. The nutrients required by straw mushroom are mainly carbohydrates and nitrogen-containing compounds. Carbohydrates mainly include sugars such as glucose, sucrose, maltose, starch, hemicellulose and cellulose. Organic nitrogen compounds mainly include peptone, amino acids and urea; inorganic nitrogen compounds include ammonium sulfate and ammonium nitrate. It is generally considered that the carbon-to-nitrogen ratio during the vegetative growth stage
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What environmental conditions are needed for growing cucumbers?
Environmental requirements for growing cucumbers
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What should I do if a cow has bloody nasal discharge? Urgent help needed
Cow has bloody nasal discharge, urgent help needed
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What conditions are needed for growing Bletilla striata? A detailed explanation of environmental requirements
Growing conditions for Bletilla striata
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Sugar orange flower promotion techniques: when to promote flowering, how to promote flowering, and whether girdling is needed
Flower promotion techniques for sugar oranges
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What equipment is needed for raising chickens? One list explains it clearly
What equipment is needed for raising chickens
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Mulberry Leaves: No Silkworms Needed, Still Selling 8 Million Yuan a Year
Mulberry Leaves Bring 8 Million Yuan a Year Without Raising Silkworms
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Duckling prices rebound, but caution still needed when adding to flocks
Duck farming market analysis: duckling prices stage a comeback, but caution still needed when restocking
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