Sheep epidemic prevention in spring

It is hot and cold in spring, the weather is changeable, and sheep are easy to catch cold. Cold sheep are in low spirits, low head and ears, cough and runny nose, elevated body temperature, no grass, no rumination. The sick sheep can be injected intramuscularly with compound aminopyrine 5 × 10 ml, or 30% analgin nearly 5 × 10 ml. In severe cases, penicillin 1.6 million units and streptomycin 500000 units can be used. You can also use 100 grams of ginger, 2 green onions, chopped soup, mixed with 100 grams of brown sugar while hot, 2 doses a day for 2 days, the effect is very good.

Preventive injection is an important measure to effectively control the occurrence and spread of infectious diseases. Generally speaking, sheep should be immunized well in spring.

Sheep lung disease is an acute febrile septic infectious disease caused by Streptococcus haemolyticus, which is prevalent in winter and spring, with a high incidence in early spring in February and March. In bad weather, the number of morbidity and deaths increases significantly, and the case fatality rate can reach more than 80%. To prevent the disease, sheep should be injected with Streptococcus suis aluminum hydroxide formaldehyde vaccine in early winter every year. All sheep, big or small, were injected subcutaneously with 3 milliliters, and then injected again 2-3 weeks after the first injection, and the dosage was still 3 milliliters. Clostridium disease is a common disease in sheep in spring, generally showing an acute process, with acute onset, high mortality and poor drug treatment effect. At present, the best prevention method mainly depends on the vaccine. In early spring, you can inject "sheep fast epidemic, sudden onset, enterotoxemia triple vaccine", or "sheep fast epidemic, sudden onset, lamb dysentery, black plague five vaccine" to prevent. Dissolve with 20% aluminum hydroxide normal saline solution before use, shake well. Regardless of the size of the sheep, intramuscular or subcutaneous injection of 1 ml.

In addition, sheep farmers should also do a good job in the immunity of sheep pox, brucellosis and other epidemic diseases according to the local actual situation. Spring immunization should be early rather than late, it is best to seize the opportunity in early spring, all the sheep will be immunized, immune injection should pay special attention to avoid the green grass season. Because at this time, the forage grass is green but not enough, and the crop straw is extremely scarce and the sheep's appetite for straw is decreased, coupled with the re-breeding and invasion of various parasites in vivo and in vitro, which leads to the decline of sheep's disease resistance, vaccination may induce part of the epidemic at this time, causing sheep death.

In spring, sheep drink pond water and eat dirty grass in the process of grazing, which is easy to be infected with parasitic diseases. Therefore, sheep should be dewormed from March to April. Levamisole, albendazole and insect bugs can be used to drive parasites in the body, and trichlorfon tablets can be used to bathe sheep in warm water, or lice and fleas can be used to kill insects.

It mainly pays attention to the prevention and control of tick and sheep burial disease and other routine deworming. Sheep burrodiasis is transmitted by ticks, so tick control can not only effectively prevent the occurrence of sheep scorch disease, but also improve the feeding quality of sheep and reduce morbidity and mortality. The high incidence period of these two diseases is in late spring and early summer, but it is found in practice that they can occur as early as early March. At this time, the sheep's physique is weak, once the morbidity and mortality is relatively high. Ticks are parasitic on the body surface of sheep, mechanically injuring the skin, causing parasite pain and itching, making sheep uneasy, and then causing skin or wound ascariasis. When a large number of parasites are parasitic, it can cause anemia, weight loss, dysplasia, decreased milk production and hindlimb paralysis. What is more, ticks can spread a large number of infectious diseases, such as sheep bursal disease, sheep blood robe disease, anthrax, brucellosis and so on, which can cause sheep death directly or indirectly. Sheep bursal disease generally shows a benign process, but sometimes the mortality rate is as high as 46% to 100%. Sheep of different ages can get sick, and sheep within 1 year old often occur.