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Comprehensive Prevention and Control Techniques for Soft-Shelled Turtle Gill Gland Inflammation
Since the intensification of soft-shelled turtle farming, because research on turtle diseases has lagged behind production, various hidden disease risks have remained latent. Among them, the most harmful and also the most difficult to treat, turtle gill gland inflammation, has gradually become prevalent in recent years. At the farm where the author works, the annual losses caused by this disease account for about 50% of total losses. This disease repeatedly occurs in broodstock turtles and adult turtles, and has now developed to affect the entire production process. 1 Main symptoms and pathogens This disease is mainly characterized by systemic edema and pale plastron. Most have intact body surfaces
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A Detailed Guide to the Main Diseases of Soft-Shelled Turtles and Their Prevention and Treatment
With the continuous development of the soft-shelled turtle farming industry, the ever-increasing density of artificial breeding, and the promotion of constant-temperature intensive farming, the factors causing turtle diseases are increasing day by day, bringing many difficulties and economic losses to specialized farming households. Below is an introduction to the causes and prevention and treatment techniques of several common diseases of soft-shelled turtles. 1. Hemorrhagic disease: Caused by viruses and Aeromonas punctata. Bleeding points or bleeding spots can be seen on the plastron of diseased turtles, and erosive growths appear on the carapace; in severe cases it can cause death. Prevention and treatment: Apply furazolidone at 1.5 g/cubic meter to the whole
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How to prevent and treat Epistylis infestations in soft-shelled turtles
Cause: Caused by parasitism of Epistylis spp. (bell animalcules) of the genus Epistylis. Symptoms: On the body surface of the soft-shelled turtle, clusters of flocculent material can be seen with the naked eye on the limbs, back and neck, and even the head, yellowish or earthy yellow in color; in water it is not as soft and flowing as water mold, but somewhat stiff and wing-like. When the condition is severe, the limbs turn brown or copper-green. A small number of parasites has no effect on the soft-shelled turtle, but heavy parasitism affects its movement, feeding, and even breathing, causing the turtle to waste away and die. Prevention and treatment: 1) When the disease occurs, use 0.5 ppm "Fish-use
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Detailed Introduction to the Classification and Common Varieties of Softshell Turtles
Introduction to the Classification and Common Varieties of Softshell Turtles With the improvement of people's living standards and the growth of market demand at home and abroad, softshell turtles have gradually moved from hotels, restaurants and eateries into ordinary households. As a nutritious food, softshell turtles' dietary therapy and medicinal therapy functions can meet the needs of consumers at different levels. Market demand has stimulated production, and China's softshell turtle farming industry has developed rapidly, with the scale of farming continuously expanding and output increasing accordingly. Large-scale farming urgently needs a large number of softshell turtle hatchlings. Due to the rapid development, the breeding of seedlings, the classification, distribution and basic biological research of softshell turtles, as well as hatchling cultivation, species identification and disease prevention in farming production, cannot adapt to the needs of production development. Aquaculture operators and merchants in our province have purchased many softshell turtle hatchlings through different channels from abroad, Taiwan, China and other provinces in the mainland. Because these hatchlings come from different sources, their seed stock quality is unclear and it is hard to tell the genuine from the fake. Some farmers and aquaculture operators have paid a lot of "tuition fees," causing losses of varying degrees to production. Therefore, studying the classification and common varieties of softshell turtles and breeding superior softshell turtle varieties with good germplasm are urgent issues that must be solved for the sustainable development of the softshell turtle farming industry.
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What causes chickens to often lay soft-shelled eggs in summer?
After summer arrives, some chickens often lay soft-shelled eggs; although the flock's laying rate is not low, the number of soft-shelled eggs increases. What is the reason for this? There are two reasons for this situation: first, the chickens lay a large number of eggs, and the calcium and phosphorus in the feed cannot meet the needs of eggshell formation. Second, because the chickens lay a large number of eggs and the weather gradually becomes hotter, their physical condition declines markedly, and the digestive and absorptive capacity of the chickens' stomach and intestines for calcium and phosphorus is greatly weakened. So, how can this problem be solved? In summer, sufficient mineral feeds such as bone meal, stone meal and shell meal must be added to the feed, and
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Detailed Explanation of Key Points for Polyculture Techniques of Soft-Shelled Turtles, Crabs, Shrimp and Fish
1. Pond conditions: The pond area is 3.5 mu, the pond bottom is flat, the silt is about 15 cm thick, and the water depth is 1.5 m. A 40 cm wide glass fence is installed around the pond, equipped with one 1.5 kW paddlewheel aerator. 2. Pond clearing and water fertilizing: After clearing the pond by the dry method with 75 kg of quicklime per mu, expose it to the sun for 5 days. One week before releasing the seedlings, fill with water to a depth of 80 cm, and use Feishuibao and EM original liquid to fertilize the water quality, so that the water transparency is about 30 cm and the water color is tea-brown or yellow-green. 3.
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How to Prevent Sand-Shelled and Soft-Shelled Eggs in Three-Lined Box Turtles
Three-lined box turtles mate and fertilize in March-April each year, and lay and incubate eggs from May to July. A single sexually mature female turtle lays 3-9 eggs per year; the three-lined box turtle has a relatively low egg production among turtles. Improper feeding and management or the influence of other factors can also cause some three-lined box turtles to lay 1-2 eggs, or even a whole clutch, of sand-shelled eggs (with a sandy, non-smooth shell surface) or soft-shelled eggs, affecting the hatch rate and causing certain economic losses to three-lined box turtle farming. 1 Causes of three-lined box turtles laying sand-shelled or soft-shelled eggs a) Lack of eggshell-producing
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What are the disinfection methods for sand used in turtle and soft-shelled turtle incubation
In recent years, with the rise of artificial turtle and soft-shelled turtle farming, how to increase the hatching rate of turtle and soft-shelled turtle eggs and hatchlings has become an urgent matter. Because some turtle and soft-shelled turtle farms still use the traditional old method, using untreated sand as the carrier for incubating eggs, they do not realize that untreated sand contains a large number of pathogens and pests, which often contaminates and ruins the eggs during incubation, and some farms fail because of this. In my 21 years of turtle and soft-shelled turtle farming practice, I have worked out methods for disinfecting sand and improved the hatching rate. Now I will introduce several very practical disinfection methods
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How to Select Breeding Softshell Turtles? Master the Selection Techniques to Choose High-Quality Breeding Softshell Turtles
Breeding softshell turtles refers to softshell turtles used for reproduction. Under natural conditions, due to the influence of climate and the harm caused by natural enemies, softshell turtles not only grow and develop slowly, but also have a low survival rate. In addition, after years of indiscriminate hunting and capture, wild resources are almost on the verge of extinction. Therefore, using artificial methods to intensify the cultivation of breeding softshell turtles is the main key to solving the source of softshell turtle seed and developing softshell turtle farming production. The selection of breeding softshell turtles should pay attention to the following issues. 1. Age: In the Jiangsu area, generally female and male softshell turtles aged over 3 years, that is, weighing more than 0.25 kg, will engage in mating behavior,
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Characteristics of the Double-Kernel Softshell Almond Variety
The nut is round-spherical with a pointed tip and light brown color; sweet kernel; thick shell, averaging 0.10 cm; nut weight 1.77-1.83 g, with about 720 nuts per kilogram; kernel weight 0.98-1.15 g. Kernel yield 55.7%-63.0%, oil content 55.4%-56.0%. The double-kernel rate is about 80%. The tree habit is slightly spreading. It bears fruit mainly on small short fruiting branches, with relatively high yield. Strong resistance and wide adaptability. The fruit ripens in late August. The leaves are dark green, broadly lanceolate, with flat leaf margins.
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