Method for controlling delivery time of sows and control equipment

The invention discloses a method for controlling delivery time of sows to induce delivery. Sow delivery is monitored, the delivery time is controlled, and induced delivery is conducted three days before the expected delivery period; the PGF is injected twice; a 20mm needle head is selected, and the injection part is the joint of the vulva and the hip skin; meanwhile, the invention provides control equipment which comprises a bottom plate, a plurality of baffles are arranged above the bottom plate, a rhombus is formed among the baffles, a cavity is formed between the rhombus and the bottom plate, a sow to be delivered is immigrated into the cavity, a rhombus cover plate is arranged above the baffles, the cover plate covers the cavity to form a closed space, and the closed space is communicated with the cavity. A lamp tube is arranged in the side, close to the cover plate, of the baffle, the lower end face of the cover plate is fixedly connected with a contactor matched with the lamp tube, and the brightness of