The concept body's normal body temperature is 38~40°C and usually refers to the anal temperature. When the outside temperature is high, after exercise and after eating, before and after the sow, the sow's body temperature is slightly higher or changes temporarily, but if it exceeds 40°C continuously, it is a fever. Principle The body temperature of pigs is kept constant, which is mainly coordinated by the two effects of heat production and heat dissipation. Under the control of the cerebral cortex, the hypothermia thermoregulatory center regulates body temperature through various reflections. Distinguish between fever and simple hyperthermia: fever is due to disorder of body temperature regulation center, heat production and heat dissipating process caused by simple hyperthermia refers to animals in severe labor, strenuous exercise or long-day sun exposure and ambient temperature A temporary increase in body temperature that occurs when the temperature is too high can quickly return to normal body temperature after the cessation of use or improvement of the environment. For example, the pathogenesis of heat shock and heat stroke can be divided into three stages: The temperature rise period, high fever period, fever period of fever classification: According to the degree of sick body temperature rise: micro-heat more than 1 °C normal body temperature, that is, at 40 ~ 41 °C.
The heat exceeds normal body temperature by 1~2°C, that is, 41~42°C.
High fever exceeds normal body temperature by 2°C or more, that is, above 42°C. According to the pig's heat-type curve (heat-type curve refers to the connection of the body temperature of the sick pig measured twice daily):
When the body temperature rises to a certain degree, the missed heat persists for several days, or the temperature difference is within 1°C. Relaxation fever is characterized by a large range of changes within 1 day and night after the increase in body temperature, which exceeds 1°C but does not decrease. To room temperature. The fever and non-heat periods of intermittent fever pigs alternated more regularly. The duration of indefinite heat fever is variable, there is no regular change, and the temperature difference is sometimes extremely limited, sometimes it fluctuates greatly. Therapeutic principle: The pigs with fever are found to be isolated immediately, and the contaminated environment must be completely sterilized. Before the cause is known, as long as the fever is not too high, the antipyretic drugs should not be used at will. At the same time when antibiotics are used, Attention should be paid to nutritional supplements such as glucose saline, electrolytes (inorganic salts), B vitamins, and vitamin C. To correct acidosis, intravenous injection of 5% sodium bicarbonate solution, etc.; during the fever period, to prevent collapse, Should pay attention to the protection of the heart function, if necessary, can be injected epinephrine and other drugs; strengthen nursing, to avoid all kinds of stress, with particular attention to the three elements of ambient temperature, humidity and ventilation; fed with easy digestion and absorption and delicious green feed or sugar More abundant feed.
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