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Prevention and Control Methods and Key Technical Points for Fulminant Disease in Cultured Puffer Fish
[Symptoms of fulminant disease in puffer fish]The main symptoms of diseased puffer fish are congestion at the base of each fin and in the fin rays; in severe cases, the fin rays, upper and lower jaws, eyes, and the area from the base of the dorsal fin to the caudal fin all show severe congestion. Sometimes there is bleeding in the orbital cavity and exophthalmos (bulging eyes). In some cases the gills show varying degrees of decay with abundant mucus.
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Prevention and Control Methods and Technical Key Points for Feather-Pecking Disorder in Captive Hwamei Birds
The so-called hwamei feather-pecking disorder refers to a small number of hwamei birds during ordinary keeping that, due to various causes, bite off their own tail feathers, wing feathers, back feathers and so on, one by one (sometimes called self-biting disease), so that the tail feathers are sometimes pulled until they are bare and sparse, curled
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Key Points of Feeding and Management During the Molting Period in Hwamei Breeding
Feeding and management of the hwamei during the molting period: Like birds in nature, the hwamei molts once a year (those that molt poorly may molt twice), mostly during the 8th to 10th lunar month of the year (a few molt earlier or later), and the whole process ends after about 100 days.
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How to keep a Hwamei (Chinese Thrush) through the winter? Key points of winter feeding and management techniques
Feeding and management of the Hwamei through the winter: Before the start of winter each year, most Hwamei birds have molted into new feathers; this natural instinct and change of plumage are of great significance to the Hwamei's overwintering. In winter, when the weather is cold, the ambient temperature is very important to the Hwamei
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Points to Note on Feed Storage in Hwamei Breeding
To prevent hwamei feed from spoiling, the following points must be noted during feed storage: (1) Prepare in appropriate amounts. When preparing hwamei feed, the amount to be mixed should be determined according to factors such as the season and climate, the number of hwamei birds, and the type and nature of the feed. Generally, it is advisable to prepare an amount sufficient for about half a month to 1 month each time. Because hwamei birds have a very small appetite, feed should be prepared frequently. If too much is processed and prepared at one time, it is prone to mold and spoilage, fat deterioration, and the vitamins contained in the feed are very easily oxidized and destroyed. If repeatedly roasted and stir-fried, its flavor and nutritional content will also be reduced. Especially in the plum rain season, it is most prone to mold and insect infestation, so feed is best prepared fresh and used for a short period. In addition, each time food is added, it should not be too much; about enough for 3—4 days is advisable, and more should be added after it is eaten, so as to maintain the fresh taste of the feed.</p><p>(2) The containers for storing feed should have good air permeability. It is best to choose wooden boxes, cloth bags, bamboo baskets, etc. Some plastic bottles release certain harmful substances, so be sure not to use them to hold bird food. The utensils for holding egg millet should be placed in a ventilated and dry place, and during the plum rain season they can also be put in the refrigerator for storage. Each time food is added, half a cup is advisable; do not add too full, and develop the habit of adding frequently and checking frequently. If too much is added and it is too full, first, the hwamei bird is likely to scatter it with its beak and cause waste; second, the bird food is also prone to clumping and molding, especially the feed at the bottom of the cup, which clumps and molds fastest. In order not to let the hwamei bird scatter the food with its beak while eating, a bamboo tube used for holding food can have a semicircular opening cut in it, allowing the bird to put its head in to eat, so that it has no room to look around while eating.
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Key Technical Points for Nursing Summer-Fingerlings of Freshwater Pompano
Freshwater pompano fry reared for about 20 days, with a body length of about 3 cm, are called summer-fingerling fish. The key nursing techniques at this stage are as follows: 1. Pond selection. The pond should have abundant water sources, good water quality free of pollution, good light, and convenient water intake and drainage, with a length-to-width ratio of 3:
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Key points for overwintering management in the fry and fingerling culture of freshwater pomfret
The freshwater pomfret is a tropical fish species. Its main suitable growth temperature range is between 21-32°C, with the optimum range at 28-30°C. At a water temperature of 16°C, the pomfret only begins to eat a small amount; at 12°C, the fish's balance becomes disturbed; and at 10°C, it causes death. During the overwintering process, water temperatures that are too low
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How to farm freshwater pomfret? Mastering these three points is key
Freshwater pomfret is a new species introduced in recent years from the United States, Hong Kong, China and other places. Because of its wide adaptability, omnivorous feeding habits, fast growth, strong disease resistance, few bones, no intermuscular spines, tender meat and good market demand, it is very popular among fishermen. Freshwater pomfret, shape
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Precautions for Nursing Freshwater Piranha (Piaractus brachypomus) Fry: What Key Points Must Farmers Master?
Freshwater piranha (Piaractus brachypomus) is an omnivorous fish; the young fish (fry) mainly feed on large zooplankton, and also consume organic debris and various artificial feeds. The following precautions should be noted during the fry nursing stage: I. Dedicated pond nursing. Because freshwater piranha is omnivorous, grows fast, has few diseases,
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Key Technical Points for Pond Culture of Freshwater Pompano
The freshwater pompano is a large economically important fish of tropical and subtropical regions, valued both as food and as an ornamental fish. It has the advantages of omnivorous feeding habits, fast growth, large individual size and few diseases. In pond culture it generally lives in the middle and lower layers of the water body, and its tolerance to low oxygen is stronger than that of ordinary fish, with dissolved oxygen required to be above 3
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