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Prevention and Treatment of Oral and Lower Jaw Boils in Freshwater Pomfret Farming
[Cause] The pathogen may be bacteria, but it has not been isolated and identified. The main conditions for the pathogen to cause this disease are the oxidative deterioration of meat residue and oil paste in pelleted feed after long-term storage, and the deterioration of water quality. [Symptoms] Diseased fish show reduced feed intake. They swim slowly at the water surface and respond sluggishly,
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Control methods for chilodonelliasis and trichodiniasis in freshwater white pomfret during the overwintering period
1. Pathogens: Chilodonella cyprini, Trichodina. 2. Symptoms: Both parasites attach to the skin and gills of fish, stimulating the secretion of large amounts of mucus, causing a pale blue film to form on the skin surface of diseased fish (chilodonelliasis) or a white film to appear on the fins, head, and body surface (trichodiniasis).
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How to prevent and treat ichthyophthiriasis in freshwater pomfret during overwintering?
Ichthyophthiriasis is the second most common disease of freshwater pomfret during overwintering. Its incidence rate is lower than that of saprolegniasis, but the mortality rate per unit area is higher than that of saprolegniasis, and it can also lead to concurrent saprolegniasis. 1. Pathogen Ichthyophthirius multifiliis. 2. Symptoms On the body surface and
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What preparations are needed before raising adult freshwater pomfret?
I. Pond conditions The pond area for raising adult freshwater pomfret should preferably be 10-20 mu, with a water depth of about 1.8 m. The pond is required to have an adequate water source, fresh and pollution-free water quality, convenient water intake and drainage, a flat pond bottom and little silt. II. Pond clearing and disinfection At the end of the year, drain the pond and expose it to the sun, remove excess
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Overwintering management techniques for freshwater pomfret fry and fingerlings after being stocked into ponds
1. Overwintering pond preparation: area 600-1500 sq m, pond depth 1.5 m; the pond water in the Pukou District area of Nanjing is geothermal spring water, flowing into the pond in a slight current; the inlet pipe is 10 cm, and the mud at the pond bottom is 10 cm thick. After drying the pond and disinfecting it, fill with water. Each pond is equipped with two 3-kilowatt aerators. 2. Pomfret fry and fingerlings
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How to prevent and treat saprolegniasis in freshwater pomfret during overwintering
1. Diseases commonly occurring in freshwater pomfret during overwintering. The most common fish diseases occurring in freshwater pomfret during overwintering are saprolegniasis, ichthyophthiriasis, trichodiniasis, chilodonelliasis, etc., especially ichthyophthiriasis, which can easily cause explosive death. The causes of various fish diseases are due to
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How can freshwater pomfret be farmed for rapid grow-out?
From May to November 2009, 5 recreational fishing farms in Yuetang District, Xiangtan, adopted the 80:20 high-efficiency adult fish pond farming model for freshwater pomfret, that is, in pond farming the main cultured species is freshwater pomfret (a feeding fish) at 80%, with accompanying fish (filter-feeding fish) at 20%, mainly feeding a complete extruded pellet feed.
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High-yield pond culture techniques for freshwater pomfret
The freshwater pomfret, scientifically known as Piaractus brachypomus (short-snouted giant tetra), is an excellent large tropical economic fish with many aquaculture advantages: fast growth, large individual size, omnivorous feeding habits, strong disease resistance, high catch rate, delicious meat and rich nutrition. This species was first introduced to He County in 1998.
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Introduction to compound feed for freshwater pomfret farming
Freshwater pomfret (Piaractus brachypomus) is a feeding fish, and in intensive farming such as ponds, cages and flowing water where freshwater pomfret is the main species, compound feed is used for feeding. This is also an important measure to increase output, promote growth and shorten the farming cycle. Practice has proved that using compound feed
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Experience in the sources and selection of broodstock for freshwater pomfret (pirapitinga) farming
Freshwater pomfret has a strong reproductive capacity. When selecting broodstock, choose individuals that are large, fast-growing, free of any disease or injury, with smooth body surface and clearly defined coloration. Also avoid using fish that are closely related as broodstock, so as to prevent degeneration of the offspring and its effect on growth.
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