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Cyanobacteria in mussel ponds tend to overproliferate in midsummer; pay attention to prevention and control
Summer has high water temperatures and strong light, making it a season of high cyanobacteria incidence. Once cyanobacteria proliferate heavily on the water surface, the water quality becomes lean; after pearl mussels ingest cyanobacteria, it is not easy for them to digest (cyanobacteria have thick cell walls), and cyanobacteria adhere to the mussels' gills, affecting respiration. At the same time, after cyanobacteria die, protein decomposition produces hydroxylamine, which combines with toxic substances such as hydrogen sulfide in the water and can poison the pearl-culturing mussels to death. Therefore, in summer, the excessive proliferation of cyanobacteria must be strictly controlled, with targeted prevention and treatment. 1. Summer temperatures are high, and at the bottom
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How to raise shrimp well in midsummer? Master these key aquaculture techniques
In the hot midsummer season, hot weather, strong sunlight, high water temperature and poor water quality affect the shrimp's foraging and molting growth, and can easily cause disease and death in shrimp. During the hot season, farmers should carry out the following management work: implement water-based temperature control and oxygen regulation: as the water temperature rises and the shrimp grow, the water depth must be continuously increased, especially in the middle and late stages of farming, when the water level must be raised to 1.8 m-2 m, and during the high-temperature period it should be kept above 2.2 m. During the high-temperature period, complete drainage and complete refilling should be carried out, keeping the water temperature within 30°C and the water transparency at 35 cm, so as to favor
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Raising geese in summer is not a losing proposition: a quick-fattening method for meat geese in midsummer
Raising geese in summer is not a losing proposition: a quick-fattening method for meat geese in midsummer
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What to pay attention to when fishing in midsummer
1. Preparation before fishing: 1 day before fishing, appropriately reduce the amount of feed, and promptly remove obstacles such as tree branches (stumps) in and around the pond as well as grass residue pollution on the water surface, so that seining can proceed smoothly. 2. Fish at the right time: generally choose the early morning when the weather is relatively cool and fish activity is normal for fishing. Never fish when the weather is muggy and hot or when fish are gasping at the surface or under other abnormal conditions, so as to avoid unnecessary economic losses. 3. Standardize operations: choose nets with an appropriate mesh size, put the net in slowly and pull it out quickly, and minimize the number of hauls; never
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Prevention and control methods for pathogenic porcine reproductive and respiratory syndrome in pigs during the high-temperature, high-humidity period of midsummer
Prevention and control methods for pathogenic porcine reproductive and respiratory syndrome in pigs during midsummer heat and humidity
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Key farming points for South American prawns affected by high temperatures in midsummer: feeding and molting
High temperatures affect prawn feeding and molting: key points for South American prawn farming in midsummer
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