关键词: 平养育雏, 喂料装置, 槽轮, 均匀性, 落料状态

Abstract: Raising chicks will directly affect the growth and development of chicks, survival rate, adult poultry production performance. Therefore, feeding and management at this stage is the key to keeping poultry well. This paper focuses on the research on the automatic feeding device of brooding feed in the flat rearing environment. The study adopts the combination of discrete element simulation and bench test method, at an average feed rate and on the ground state of blanking as evaluation index, under the speed of 0.25 m/s, research the Angle of the wheel speed and discharging mouth feeding uniformity and brood on the ground state of blanking. The accuracy of simulation results was verified by bench test. The results show that the average feeding rate is affected greatly by the rotational speed of the grooving wheel. When the rotational speed is lower than 8 r/min, the feeding material is linear and the continuity is poor. When the rotation speed is higher than 10 r/min, the brood is in loose state and has good continuity. The effect of the outlet Angle on the average feeding amount is not significant, and the blanking state is basically the same under different outlet angles. The simulation experiment is in good agreement with bench experiment. This study provides a reference and theoretical basis for the design and optimization of troughwheel automatic feeding device, and provides a method to solve the feeding demand in different states of the farm.

Key words: flat brooding, feeding device, trough wheel, uniformity, blanking state