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The animals are placed, shall first limb Baoding method, which uses a rope embedded in pig mouth, playing a slipknot collar and tightening, pull the free end of the rope back around to the top of slipknot , pulled by the pet owners. The operator put the opener iron pipe sideways into the animal mouth. A suitable tube inserted into the esophagus from the middle iron pipe according to animal size, with plastic ball test, press the funnel to administration.