Abstract: Provided is a technology that allows easy evaluation of a degree of growth of pigs raised in a group instead of guiding the pigs one by one to a cage. A growth evaluation device includes an extraction unit that extracts, from an image captured by a camera disposed to face a pen in which the plurality of pigs are raised in the group, a buttock image having buttocks of one of the pigs facing forward, an arithmetic unit that arithmetically determines a buttock width from the buttock image, and an evaluation unit that evaluates the degree of growth of all the plurality of pigs on the basis of a prescribed number or more of the buttock widths arithmetically determined by the arithmetic unit.

Abstract: Provided is a technology that allows estrus of a sow to be accurately determined without relying on experience or in intuition of an observer. An estrus determination device for a sow includes a measurement unit that measures, per unit time, a frequency of standing up and lying down of a sow raised in a stall and a determination unit that determines estrus of the sow on the basis of a plurality of frequencies repetitively measured by the measurement unit over a set given period.

Abstract: A fan motor includes an electric motor including a stationary unit and a rotary unit, an impeller including blades and rotating together with the rotary unit, a housing accommodating the electric motor and the impeller, lead wires connected to the electric motor and extending radially outward, and a guide member. The housing includes a tubular portion extending along a rotation axis and accommodating at least a part of the impeller, a flange portion protruding radially outward from at least a part of the tubular portion, a lead wire outlet port provided in at least a part of the tubular portion, and a vertical groove communicating with the lead wire outlet port and penetrating the flange portion in an axial direction. The guide member is disposed inside the vertical groove, and at least a part of the lead wires is accommodated radially inward of the guide member in the vertical groove.

Abstract: A fan motor includes an electric motor including a stationary unit and a rotary unit, an impeller including blades and rotating together with the rotary unit, a housing accommodating the electric motor and the impeller, lead wires connected to the electric motor and extending radially outward, and a guide member. The housing includes a tubular portion extending along a rotation axis and accommodating at least a part of the impeller, a flange portion protruding radially outward from at least a part of the tubular portion, a lead wire outlet port provided in at least a part of the tubular portion, and a vertical groove communicating with the lead wire outlet port and penetrating the flange portion in an axial direction. The guide member is disposed inside the vertical groove, and at least a part of the lead wires is accommodated radially inward of the guide member in the vertical groove.