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Causes of Yellow Bottom and Yellow Gills in Farmed Swimming Crab (Portunus trituberculatus) (with pictures)
Because the swimming crab (Portunus trituberculatus) has characteristics such as fast growth, large individual size and delicious meat, it has become one of the important economic species in pond aquaculture in China, and artificial farming is now fairly common, so what do pictures of the swimming crab look like? When farming swimming crab, why
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How do grosbeaks overwinter? Key points for winter feeding and management
The grosbeak is a general term for birds of the class Aves, order Passeriformes, family Fringillidae. They feed on seeds and like to move about in small flocks. So how do they overwinter? How are they kept? 1. How do grosbeaks overwinter? Grosbeaks generally migrate before winter arrives to southern China, and spend
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How to prevent and control Aspergillus disease in reishi mushrooms? A detailed explanation of the latest methods
Aspergillus disease in reishi mushrooms is the most common disease during reishi cultivation, caused by Aspergillus fungi. Aspergillus fungi belong to the genus Aspergillus, family Moniliaceae, order Moniliales, class Hyphomycetes, subdivision Deuteromycotina. There are many species, and the most widespread damaging ones are Aspergillus flavus and Aspergillus niger. Below
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Precautions for Mushroom Production and Methods for Preventing Aspergillus
Mushrooms are a type of natural food that is rich in color, fresh, fragrant and crisp, delicious, nutritionally balanced, and also has therapeutic value, and is deeply loved by people. However, during the mushroom cultivation process, Aspergillus contamination can occur, and after being affected, loose granular substances in different colors such as yellow and black can be seen
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How to effectively treat autumn gill rot disease in carp
1. Incidence and symptoms In 2005, a total of 8 cages of carp were farmed in Tumenzi Reservoir. From the introduction of fry at the end of April to mid-September, disinfectants were consistently applied externally by splashing or hanging baskets every half month, and medicated bait was fed once every 20 days. Bactericides and insecticides were used alternately
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What are the prevention and treatment methods for gill rot disease in pufferfish?
[Symptoms of gill rot disease in pufferfish] Diseased pufferfish move sluggishly, have darkened body color, have difficulty breathing, swim slowly in the upper water layer or near the pond edge, and have reduced appetite. When the gill cover is opened, increased mucus on the gill filaments is visible to the naked eye; in severe cases, the tips are decayed and defective, and some gill filaments appear grayish-white, often
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Prevention and Treatment of Complications Such as Enteritis and Gill Rot in Grass Carp Fingerling Culture
Symptoms The diseased fish swim slowly and have reduced appetite; the scales on the fish body are basically intact; there are one or several varying furuncles on both sides of the dorsal fin, which feel relatively soft to the touch and have a swollen sensation, and when the furuncles are cut open, purulent and bloody fluid flows out; the anus is slightly red and swollen; the gill filaments are red and swollen, with
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Prevention and Treatment Methods for Several Gill Diseases in Whiteleg Shrimp (Litopenaeus vannamei) Farming
1. Gill disease caused by Vibrio. Diseased shrimp float and swim slowly on the water surface, with gill filaments slightly swollen and dark gray, showing degeneration and necrosis at the tips. Under high magnification, actively motile bacterial cells can be seen. Ponds where this disease occurs have severely polluted bottom sediment and poor water quality, and the disease peak season is from July to September.
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The pathogenesis of red gill disease in river shrimp and its prevention and treatment methods
Red gill disease in river shrimp is a disease caused by infection with Aeromonas hydrophila that makes the gills of river shrimp turn red. Red gill disease in river shrimp has caused serious trouble for river shrimp farmers. Below we will look at what red gill disease in river shrimp is all about and how to treat it. Pathogen of red gill disease in river shrimp
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Control Methods for the Dark Black Chafer in Peanut Fields
The dark black chafer is the dominant population harming peanuts in the Xinyi area, and its larvae (white grubs) not only severely damage peanut pods, but also feed on crop roots in soybean, corn, sweet potato, Chinese medicinal herb, flower and nursery stock fields. In production, corresponding measures should be taken during the adult and larval stages according to the occurrence
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