关键词: 保育猪, 智能饲喂, 正交试验, 粥料

Abstract: Aiming to solve the problems of high mortality rate of nursery pigs,  high feed waste,  and high labor intensity,  a prototype testing platform for a porridge machine was built,  and an intelligent porridge feeding system for nursery pigs was designed. The system was composed of four parts: a mechanical body,  a handheld terminal,  a central controller,  and a cloud platform. Orthogonal experiment was carried out on the installation height of screw conveyor, the inner diameter of discharge channel and the structure of broken arch in the mechanical body. The optimal parameters combination is obtained as follows: screw conveyor installation height was 60 mm,  discharging channel diameter was 42 mm,  the broken arch structure adapted the combination form of upper and lower broken arch structure,  the filling efficiency was optimal,  the value of λ was 14.2 g/r,  and the water supply error of the system was 143%. When the ratio of water to feed was equal and greater than 1.5∶1,  the liquid level monitoring device can satisfy the requirements of the system. The research can provide a reference for the research and development of feeding equipment for piglets.

Key words: piglets, intelligent feeding, orthogonal experiment, porridge