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Prevention and Treatment Methods and Key Technical Points for Several New Pig Diseases
I. Post-weaning Multisystemic Wasting Syndrome in Pigs This disease is a new disease caused by porcine circovirus type II (PCV2), characterized mainly by rapid or difficult breathing, diarrhea, anemia, obvious lymphoid lesions and progressive emaciation in weaned piglets. The incidence of this disease is 5%-20%, sometimes as high as 100%, and the mortality rate is 100%. It severely affects pig growth and development, has caused huge economic losses, and has evolved into a worldwide disease that has attracted widespread attention from countries around the world. The disease mostly occurs at 6 weeks
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Prevention and Treatment Methods and Technical Key Points for Pig Abscesses
Pigs commonly have abscesses under the jaw, on the scrotum, groin, behind the ears, on the udder, at the umbilicus, and on the limbs. 1. Cause: caused by infection after injury to the skin or mucous membrane. In addition, it can also be caused by leakage of intravenously injected hypertonic saline, calcium chloride, chloral hydrate, neoarsphenamine, etc. outside the blood vessel, or by inadequate disinfection when injecting preventive vaccines, or by certain infectious diseases, etc. 2. Symptoms: in the early stage, there is local diffuse redness and swelling, which then protrudes above the skin surface. After a few days, a localized spherical mass forms, and the center gradually softens and fluctuates. Once it ruptures, a large amount of pus flows out. 3.
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Key Technical Points and Daily Management Methods for Breeding Turtle Parent Stock
Female turtles over 0.5 kg and male turtles over 0.15 kg, at an age of 5 years or older, are suitable as parent stock. Stocking ratio: female-to-male ratio of 3:1, density of 0.6 turtles per sq m. Parent turtle feed should contain about 40% crude protein, plus 20% live feed. In South China, turtles reach sexual maturity at 5 summer years of age; first-time laying females produce 1 clutch per year, with 1 to 4 eggs per clutch. 8-year-old females lay an average of 3.2 clutches per year, with an average of 5.5 eggs per clutch, averaging 16 to 20 eggs per female per year; 10-year-old females lay 4.5 clutches per year,
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Methods for the Prevention and Control of Common Soft-Shelled Turtle Diseases and Key Technical Points
Soft-shelled turtle diseases can be divided into three major categories: infectious diseases caused by bacteria, molds or viruses, parasitic diseases caused by parasites, and diseases caused by other factors. Among them, the more harmful and common ones are red plastron disease, white plastron disease, red neck disease, skin rot disease, perforation disease, white spot disease, bell-shaped ciliate disease, etc. Below is an introduction to the pathogens, causes and treatment methods of various diseases. 1. Red neck disease. Pathogen. The pathogen of red neck disease is Aeromonas hydrophila, Gram-negative. Carrier turtles and contaminated pond water are the main sources of infection,
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What are the key technical points for garlic cultivation? A detailed explanation in one article
Garlic is a bulb vegetable of the onion family, with strong cold tolerance, an optimum growth temperature of 12-25°C, and is a long-day crop. It is suitable for planting in fertile, slightly alkaline soil rich in organic matter with convenient irrigation and drainage. To grow garlic, the main steps to get right are as follows: (1) Variety selection. At present, the main varieties suitable for planting in Qilin District are Sichuan Red Seven Stars (first generation, second generation), Soft-leaf Garlic, First-grade Early, Second-grade Early, local purple-skin garlic, etc. (2) Sowing time. In the flat basin area, early garlic sprouts and Red Seven Stars (first generation, second generation) are generally planted around the White Dew solar term (early September
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Methods and key technical points for rational close planting of garlic
How should garlic be rationally close-planted? Before sowing, the planting density must first be determined, that is, the number of plants per mu. According to trials in the Cangshan garlic production area, on plots with medium to high production levels, planting 30,000 plants per mu yielded 686.7 kg of fresh garlic bulbs; planting 40,000 plants per mu yielded 920 kg of fresh garlic bulbs, a 33.9% increase over planting 30,000 plants; planting 45,000 plants per mu yielded 526.7 kg of fresh garlic bulbs, a 23.3% decrease. The trials found that when the number of plants per mu exceeded 40,000, although the yield increase was significant, the commercial
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Garlic Seed Selection and Saving Methods and Key Technical Points
Garlic is propagated by using the bulbs as seed. For seed saving, choose bulbs with thick, sturdy stalks, deep green leaves, a good root system, no pests or diseases, and that are large and plump. At the same time, pay attention to timely harvesting. If the bulbs are harvested too early, the cloves will not be plump or firm, and when planted the following year they will have weak germination vigor, uneven emergence, and leaves that curl into tubes without opening; if harvested too late, the outer skin of the bulbs will split, and many cloves will scatter. The harvest time is generally best 25-30 days after the garlic scapes are harvested. At harvest, the aboveground part should have four or five leaves, the cloves should be countable by hand as raised bumps, and the outer skin should be purplish red. When harvesting garlic bulbs, you must
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Detailed Explanation of Garlic Storage Methods and Technical Points
The key to garlic storage is creating suitable environmental conditions for dormancy, inhibiting sprouting and rot. The ideal environmental conditions for garlic storage are: low temperature, low humidity, and ventilation. The most suitable temperature is around 0°C, and the relative humidity is 70-80%. Its simple fresh storage requires no special or complex process equipment, and even more so no fixed storage site; it adapts to local conditions, uses local materials, has a simple process, and is low in cost. The storage time can reach 7-8 months. Storage methods include hanging storage, rack storage, and pit storage. 1. Hanging storage: After harvest, the garlic must
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Key Technical Points for High-Yield Cultivation of Green Food Garlic
1 Site Conditions for Green Food Garlic The green food garlic base should be far from cities, industrial and mining areas, and main traffic lines, and there should be no "three wastes" (waste gas, wastewater, and industrial residue) discharging enterprises in the base area and its surroundings. The farmland atmospheric environment should be good, and the irrigation water quality and soil environmental quality should both comply with the "Environmental Quality Standard for Green Food Production Areas." Soil suitable for garlic growth should have a deep plow layer and fertile texture, with organic matter content above 1.0%, and loam is best. 2 Planting of Green Food Garlic 2.1 Land Preparation The plowing depth is generally about 20 cm, and the soil should be finely cultivated,
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How to prevent and control peach leaf curl? A detailed explanation of practical technical points
I. Symptoms and damage. This disease occurs from time to time in the south, and when severe it causes branch dieback and affects ornamental value. The disease mainly damages leaves. When leaves unfold in early spring, the leaf margins curl downward, and the diseased leaves become blistered in part or entirely, the leaves thicken, become brittle in texture, and turn yellow or red, with the leaves distorted and deformed. In early summer, a grayish-white powdery layer forms on the diseased parts, and when the disease is severe the leaves fall early. When young shoots are damaged, they appear grayish-green or yellow, with short and thick internodes and slight curvature; the upper leaves cluster and curl. When the disease is severe, the branches die.
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