Symptoms, Pathology and Control techniques of Porcine Chlamydia trachomatis
Porcine chlamydia is a symptomatic infectious disease caused by Chlamydia psittaci. The clinical manifestations are abortion, premature delivery, stillbirth and weak piglets of pregnant sows; breeder boars
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Measurement of grass yield in grazing land Calculation of sheep load
(a) grass yield measurement grazing land grass yield is affected by factors such as season, climate, species and grazing use. It is important to determine the reasonable sheep load by measuring the grass yield of grazing land. Sample method can be used. The mowing quantity of 1 square meter pastureland is taken as a sample, at least 10 sample squares are sampled in each grazing plot, 10~20 sample squares are sampled in each large area, 50~100 sample squares are required for desert pastureland, and the actual number of sample squares is divided by the grass yield of sample squares.
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Teach you how to give a pig an injection
Injecting pigs is the main method to prevent and treat pig diseases. Several injection methods are usually used, such as intramuscular injection, subcutaneous injection, intravenous injection, intraperitoneal injection and so on. Intramuscular injection is rich in blood vessels, and the injected solution is absorbed quickly. in addition, the distribution of sensory nerves in muscle is less, and the pain caused by intramuscular injection is less, so it is the most commonly used method of injection. The injection site is generally chosen in the muscular buttocks or neck. When injecting, first shearing, disinfecting, holding the syringe in the right hand, piercing the needle vertically. The depth depends on the size of the pig.
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