Recently, a reader in Yancheng City reported to the newspaper that he mainly bred rabbits, and that there was a female rabbit in the home for five to six days. The recent appearance of symptoms such as not eating, pulling yellow feces, and other symptoms It has lasted 2 days. He asked, what's going on? What should I do now? It is understood that E. coli and Clostridium perfringens infection can cause hairy rabbits to pull yellow excrement. In the early stage of the disease, stools were soft and heavy. In severe cases, the feces were water samples. The feces contained undigested feed, and some had mixed mucus and blood, and the feces became foul and adhered to the perianal and tail. If this is the reason, streptomycin can be administered intramuscularly at 20,000 IU/kg body weight twice daily for 3 to 5 days; sulfamethazine can also be added at 0.2 g/kg body weight in feed. Treatment once daily. When Salmonella is infected, diarrhea may also occur in the hairy rabbits, and later pregnant females will suffer a miscarriage or even die. Blood and foam are often seen in the feces. Treatment can be used Norfloxacin, levofloxacin, ceftriaxone, etc. for treatment. Coccidian parasitism also shows symptoms of diarrhea. It also shows abdominal fullness, belching, and other symptoms. In production, chlorophenyl hydrazine is added at 150 mg/kg in feeds to prevent it, and the therapeutic dose is doubled. Rabbit ball spirit, sulfathiazole (ST), sulfamethazine (SM), sulfapyridine (SD), etc. have a curative effect on this disease. In addition, poor feeding and management can also cause rabbit diarrhea. The pregnant female rabbits in the farmer's home are severely diarrhea and are temporarily stopped feeding. The treatment is mainly to prevent dehydration, and 5% of sugar can be used for drinking, or gentamicin can be added to the feed for treatment. Use forced injection or irrigation or other methods for treatment to prevent stress abortion. Or use a 0.02% potassium permanganate solution (the solution is light pink, that is effective) for the rabbit to drink Beverage, once a day, once every 3 to 5 days. After the female rabbit is produced, if the symptoms persist, symptomatic treatment is performed according to other characteristic clinical symptoms. Roundness Measuring Instruments
Roundness meter is a length measuring tool for measuring roundness using the rotary axis method. The roundness meter is a measuring tool for measuring the roundness error of the workpiece using the rotary axis method. Roundness tester is divided into two types: sensor rotary type and workbench rotary type. During measurement, the measured part is installed concentrically with the precision shaft system, and the precision shaft is attached with an inductive length sensor or a workbench for precise circular motion. It is composed of sensor, amplifier, filter and output device of the instrument. If the instrument is equipped with a computer, the computer is also included in the system.
The principle of the roundness meter is the same as that of the coordinate measuring machine. In fact, its working principle is very simple. The coordinate measuring machine is a point acquisition tool. Its principle is to collect points first, and then form a line from points, and then form a three-dimensional model from lines. CMM is a kind of measuring equipment that has a guiding mechanism, a length measuring element, a digital display device in three mutually perpendicular directions, and a worktable that can place the workpiece (not necessarily large or huge). The measuring head can be moved to the measured point easily by manual or motorized means, and the coordinate value of the measured point is displayed by the reading device and the digital display device. Obviously, this is the simplest and most primitive measuring machine. With this measuring machine, the coordinate value of any point in the measured volume can be displayed through the reading device and digital display device.
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