Flat Belt Separation System under Slat in Fattening Pig Housing: Effect of Belt Slope Angle  

作　　者：Francisco Alonso Aranzazu Mateos Jesús Vázquez Miguel Angel Garcimartín Elvira Sánchez Ismael Ovejero 

机构地区：[1]Escuela Técnica Superior de Ingeniería Agronómica Alimentaria y de Biosistemas, Technical University of Madrid, Ciudad Universitaria, Madrid, Spain

出　　处：《Agricultural Sciences》2018年第6期692-702,共11页农业科学（英文）

摘　　要：In this study, the separation and drying efficiency of the excreta, separated into solid and liquid fraction by a flat conveyor belt under a partial slatted floor in a facility for fattening pigs, was determined. Two transverse slope angles (4&#176 and 6&#176) for the flat belts were used, in a trial with pigs from 20.61 to 117.83 kg of live weight (LW), and the sample size was 7 pigs per pen, 42 pigs per room. The flat belt was more efficient with 6° than with 4° slope angle (32.65% vs. 29.91% dry matter content of solid fraction during the whole fattening period, respectively;P &#176 than for the 4&#176 (1.4137 vs. 1.3030, during the whole fattening period;P &#176, this efficiency was not improved in finishing period -83.40 to 117.83 kg LW (two extractions per day) with regard to the growth period -20.61 to 83.40 kg LW (one extraction per day). Meanwhile, with 4&#176 it did improved. The ventilation system underneath slat seems to play a key role in the obtained results.In this study, the separation and drying efficiency of the excreta, separated into solid and liquid fraction by a flat conveyor belt under a partial slatted floor in a facility for fattening pigs, was determined. Two transverse slope angles (4&#176 and 6&#176) for the flat belts were used, in a trial with pigs from 20.61 to 117.83 kg of live weight (LW), and the sample size was 7 pigs per pen, 42 pigs per room. The flat belt was more efficient with 6° than with 4° slope angle (32.65% vs. 29.91% dry matter content of solid fraction during the whole fattening period, respectively;P &#176 than for the 4&#176 (1.4137 vs. 1.3030, during the whole fattening period;P &#176, this efficiency was not improved in finishing period -83.40 to 117.83 kg LW (two extractions per day) with regard to the growth period -20.61 to 83.40 kg LW (one extraction per day). Meanwhile, with 4&#176 it did improved. The ventilation system underneath slat seems to play a key role in the obtained results.

关 键 词：Flat BELT MANURE SEPARATION and DRYING Efficiency SEPARATION System SWINE 

分 类 号：R73[医药卫生—肿瘤]