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Prevention and Control Methods and Technical Key Points for Chronic Respiratory Disease in Chickens
1. Improve the rearing environment, pay attention to insulation, prevent overcrowding, and maintain air circulation inside the coop. 2. Practice all-in/all-out management and regularly carry out spray disinfection of the chickens' bodies. 3. Trial use of vaccines for prevention: broiler chickens can be vaccinated with attenuated mycoplasma vaccine, and breeding chickens can be vaccinated with oil-emulsion inactivated mycoplasma vaccine, with one vaccination at 10 days of age and one before the start of laying. 4. Drug prevention and control. Planned administration of medication for prevention and control is still the key to controlling this disease at present, among which prevention is the most important. If treatment is only carried out after the disease has already occurred and spread or become severe, the results will not be ideal.
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Technical key points for feeding pigs with bitter lettuce in summer and autumn
Bitter lettuce, commonly known as bitter vegetable, grows vigorously in summer and autumn, has strong adaptability, high yield, and rich nutrition, and is a good feed for pigs. Fresh bitter lettuce contains 89% moisture, 2.6% crude protein, 1.7% crude fat, 1.6% crude fiber, and 3.2% nitrogen-free extract. Air-dried bitter lettuce contains more than 20% crude protein. Fresh bitter lettuce is tender and juicy, with white sap and a slight bitter taste, and has the effect of strengthening the stomach and promoting intestinal peristalsis. Therefore, it is good to feed pigs more bitter lettuce in summer and autumn. The feeding method is: the collected bitter lettuce
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Prevention and Treatment Methods and Technical Key Points for Winter Dysentery in Cattle
1. Prevention. The transmission route of this disease is infection through the digestive tract; therefore, cattle kept indoors in winter should have improved feeding management and environmental disinfection. Sick animals should be isolated and treated promptly, and the equipment and secretions of sick animals should be thoroughly disinfected. Manure must be strictly prevented from contaminating feed and drinking water, and manure management and harmless treatment should be strengthened. 2. Treatment. This disease is mainly treated with symptomatic therapy. An equal-volume mixture of turpentine oil and creolin can be given orally, 25-50 milliliters each time, twice daily. For severely affected animals, fluid replacement should be given promptly, such as 2000-3000
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Prevention and Treatment Methods and Technical Key Points for Rumen Atony in Cattle
Rumen atony is a disease in which the excitability of the rumen nerves is reduced and contractility is weakened, so feed cannot be normally digested and moved backward in the forestomach, resulting in fermentation and putrefaction that produce toxic substances, causing digestive disorders and systemic functional disturbances. 1. Etiology. It is mainly caused by excessive concentrate and insufficient roughage; a single feed type or excessive feeding of roughage rich in crude fiber and difficult to digest, such as straw, old dried hay, and bran; long-term excessive feeding of grass meal, boiled mushy root tubers, and dregs feed, which weakens rumination function
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Detailed Explanation of Key Technical Points for Broodstock Cultivation of Little Yellow Croaker
The little yellow croaker (Pseudosciaena polyactis Bleeker) belongs to the order Perciformes, suborder Percoidei, family Sciaenidae, genus Larimichthys (yellow croakers). It is distributed in the Bohai Sea, the Yellow Sea and the northern East China Sea. It is a warm-temperate demersal fish and was formerly one of the four major marine economic fish species in China. Since the 1950s, the little yellow croaker resource has declined severely. In this article, the author introduces broodstock cultivation techniques for the little yellow croaker. Through observation of the growth process of the little yellow croaker, growth parameters were recorded, laying the preliminary groundwork for artificial breeding and artificial farming of the little yellow croaker.
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Detailed Explanation of Processing Methods and Technical Key Points for Small Mixed Fish
I. Raw materials: 1. Main ingredient: small mixed fish. A body weight of 150-200 grams is preferable. 2. Auxiliary ingredients: glutinous rice, filled lean pork, goji berries, coix seed, carrots, sweet corn, shiitake mushrooms. 3. Seasonings. Sugar, refined salt, soy sauce, yellow rice wine, ginger, star anise, cinnamon, etc. II. Process flow: raw small mixed fish → skinning → removing head and viscera → washing → stuffing → cooking in seasoning sauce → heat preservation → cooling → vacuum packaging → quick freezing → boxing and storage. III. Processing technology 1. Preliminary processing.
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Processing Methods and Technical Key Points for Smoked and Roasted Fish Products
I. Smoked Fish The raw materials for smoked fish are mostly medium-sized fish such as black carp and grass carp, but carp, silver carp, pomfret and others can also be used. Through processing, they are made into tasty convenience foods. The production method is as follows: 1. Splitting and cutting After selecting the fish, wash them clean with fresh water, scrape off the scales, trim off the fins, slit open the belly and remove the internal organs, but do not puncture the gallbladder, as this would give the flesh a bitter taste. Then use a cloth rinsed in hot water to wipe away the blood and dark membrane inside the abdominal cavity, then cut open the fish head so that the fish body becomes a flat piece. For larger black carp, after removing the head
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Prevention Methods and Technical Key Points for Fulminant Hemorrhagic Disease in Fish
Main measures to prevent fulminant hemorrhagic disease in fish: 1. Strengthen awareness of prevention. This disease has a sudden onset, spreads quickly, has a long epidemic season, and causes high mortality and heavy losses. Once an outbreak occurs, it is difficult to control, and the condition tends to recur. 2. Before fry and fingerlings are stocked into ponds, they must be disinfected by soaking in 1%-2% salt water. The soaking time depends on the fish's physique and the temperature. When conditions permit, fish fingerlings can be soaked with fulminant hemorrhagic disease vaccine. 3. Change water and increase oxygen in a timely manner. Keep the water quality fresh and change
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Detailed Explanation of the Key Technical Points for Cleaning and Disinfecting Soft-shelled Turtle Ponds
After 8 to 10 months of greenhouse culture of soft-shelled turtles, the indoor turtle ponds have accumulated various pathogenic organisms as well as organic residues such as leftover bait and feces, so cleaning and disinfecting the turtle ponds is extremely important. The sand in the ponds is best replaced; ponds where it cannot be replaced, or ponds without sand, should also be repeatedly rinsed and disinfected. About 10 days before use, release water to a depth of about 10 cm, and broadcast quicklime, strong chlorine powder, or chlorine dioxide over the entire pond to kill pathogens. For old greenhouses that have been used for many years of culture, it is best to also carry out spatial disinfection to prevent pathogens from spreading through the air. Specifically, solid formaldehyde (4 to 5 grams per cubic meter) can be used, placed
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How is upland rice cultivated? These technical points need to be mastered
Upland rice cultivation should master the following points: (1) Select a suitable sowing period according to variety characteristics. Generally the same as the local early and middle rice. (2) Choose plots with deep soil plough layers and good water retention. Mountainous land with steep slopes, shallow plough layers and high coarse sand content is not suitable for planting upland rice. (3) Deep ploughing and fine preparation, with sufficient base fertilizer. Plough layer over 15cm, bed width about 1 m. Apply base fertilizer per mu by banding or hole application: phosphate fertilizer 50 kg, potassium fertilizer 10 kg, farmyard manure 500 kg. (4) Direct seeding or seedling raising and transplanting. Direct seeding can be drilled
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