-
Symptoms and Comprehensive Prevention and Treatment of Endometritis in Sows
When sows are mated, artificially inseminated, giving birth, assisted during farrowing, or experiencing miscarriage, if hygiene is not observed or disinfection is not strict, bacteria can be introduced into the uterus, causing reproductive infections in sows. Among these, Escherichia coli, Corynebacterium, Streptococcus, Staphylococcus, Pseudomonas aeruginosa, and Proteus are the most common, leading to endometritis. During farrowing, surgical manipulation of the birth canal or partial retention of fetal membranes in the uterus can also cause endometritis. If the floor of the pen is not kept clean, or if the sow moves around in a exercise yard contaminated with sewage, bacteria can also enter through the vulva.
-
Practical technical points for heatstroke prevention and cooling in summer chicken raising
The most suitable temperature for laying hen production is 17°C to 28°C, and the temperature range with little effect on production is roughly 7°C to 27°C. When summer temperatures in Shandong generally exceed 35°C, chickens will faint, and when they reach 40°C, chickens will die. Experiments have shown that when the temperature inside the chicken house reaches above 30°C, rooster sperm decreases, hen sexual maturity is delayed, the fertilization rate drops by 60%, and laying by laying hens generally declines. At the same time, due to a drop in blood calcium and an imbalance in acid-base balance, other diseases are easily induced, such as E. coli and mycoplasma disease. Because broiler chickens are large in body size, prone to fat
-
Symptoms and Prevention Methods of Porcine Subhealth Syndrome
In actual production management on pig farms, managers and technical staff generally pay more attention to the treatment and prevention of diseases, while paying insufficient attention to chronic wasting diseases such as pig parasites. Over many years of production practice, we have found that, in addition to the above factors, porcine subhealth syndrome - a critical state between health and disease - will, now and for a relatively long period in the future, together with virulent viral diseases, become the greatest enemy harming the pig industry. If pig farm managers do not pay close attention, it will seriously
-
What are the prevention and control measures for Pseudomonas aeruginosa infection in chickens?
(1) Strengthen hygiene and disinfection during incubation, and carry out fumigation and disinfection of hatching eggs. (2) Dilute and inject Marek's disease vaccine strictly following aseptic procedures. (3) Persist with disinfection of the chicken house while the chickens are present. (4) Treatment: select sensitive drugs for treatment based on drug sensitivity testing. Gentamicin injection may be tried, at 10,000-20,000 international units per kg of body weight, by intramuscular injection, twice daily, for 3-4 consecutive days.
-
How should repeated fever in pigs be prevented and treated?
Pigs suffering from "high fever syndrome" generally show persistent high fever (around 41.5°C), reddened skin with bleeding spots, cyanosis of the ear tips, congestion of the conjunctiva, labored breathing or coughing, reduced appetite, and abortion in some sows; necropsy reveals brown lesions of varying size in the lungs, and in severe cases the lesions involve the entire lung, while the kidneys appear earth-yellow (similar to the color of the kidneys in swine fever), and the lymph nodes are swollen, hemorrhagic, and juicy on the cut surface. The key to preventing and treating this disease is to adopt a prevention-first policy: first, carry out isolation, disinfection,
-
Soybean aphid outbreak forecast issued, growers need to take timely preventive measures
Based on the survey results from all forecasting stations across the province, combined with a comprehensive analysis of crop growth and meteorological conditions, soybean aphids are expected to occur at a moderate level overall across the province this year, with some cities and counties that have received less rainfall and had high early-season aphid populations reaching moderate-to-severe occurrence. The peak period of soybean aphid damage will be from mid-July to early August. 1. Occurrence is earlier than in normal years. According to monitoring by all forecasting and plant protection stations across the province, the first aphid sighting was on June 10, later than last year but still about 10 days earlier than in normal years. 2. Meteorological conditions are unfavorable for soybean aphid
-
Four Disease Prevention and Control Methods for Off-Season Shiitake Mushrooms
For off-season cultivation of shiitake mushrooms, during the high-temperature, high-humidity season from June to September, there are more diseases and contaminant fungi than in winter, but as long as prevention and control measures are appropriate, ideal production results can still be achieved. Log rot disease: in production, Trichoderma (green mold) usually infects first, then forms cross-infection with multiple fungi. Prevention and control measures: strictly and standardly carry out inoculation operations, and do not let mold spores fall into the substrate. Edible mushroom inoculation purification machines are worth promoting; when inoculating, turn on the purification machine for 5 minutes before operating. The effect is similar to conventional formaldehyde fumigation, and it avoids the possibility of formaldehyde residue and irritation to the human body.
-
Causes of Deformed Mushrooms in Agaricus bisporus and Their Prevention and Control Methods
1. Deformed mushrooms. When ventilation is poor and the carbon dioxide content in the mushroom house exceeds 0.3%, deformed mushrooms are likely to appear. If the fruiting position is too deep, mushrooms growing between the cracks of the coarse soil also tend to be deformed. The key to prevention and control is to pay attention to ventilation and air exchange in the mushroom house. 2. Red root mushrooms. Slightly acidic cultivation material, a high-temperature stage before fruiting, excessive water content in the casing soil layer, excessive application of glucose as a supplemental fertilizer, and poor ventilation in the mushroom house can all easily lead to red root mushrooms. The pH of the compost should be properly adjusted, the water content of the casing soil should be maintained at 22%-25%, watering should be avoided during high temperatures, and the concentration of supplemental fertilizer should be appropriate.
-
What are the common methods for preventing and controlling cherry blossom pests and diseases?
There are many types of cherry blossom pests and diseases. The common ones are described below: Perforation-type brown spot disease occurs in May and June. Small purple-brown spots appear on the leaves, then gradually expand into circles. After the diseased spots dry and shrink, they become small holes. The pathogen mostly overwinters on diseased branches and leaves. The optimum temperature for its development is 25°C to 28°C. It spreads by wind, and rainy seasons favor infection and disease development. When the tree is weak, drainage is poor, and ventilation and light penetration are poor, the disease occurs severely. Control methods: (1) Strengthen cultivation management, prune and trim reasonably
-
How to prevent and treat bacterial crown gall disease in cherry blossoms
Bacterial crown gall disease is one of the most common root diseases on ornamental flowers and nursery stock in northern China, occurring mostly in areas with alkaline soil. Besides harming cherry blossoms, this disease can also harm Rosaceae plants such as elm and rose, as well as indoor and outdoor flowers and trees such as ginkgo and Dianthus, with its hosts covering more than 300 species in 60 families. Symptoms: This disease often occurs at the root crown, especially at the graft union of nursery stock, and sometimes also occurs on lateral roots, branch roots or branches (canes). The gall is spherical when it first forms, can merge with one another, and is milky white or slightly red
条件筛选