AS  Vol.9 No.6 , June 2018
Flat Belt Separation System under Slat in Fattening Pig Housing: Effect of Belt Slope Angle
Abstract: 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 < 0.0001). The separation and drying efficiency of the excreta, defined as the ratio of dry matter content of the solid fraction to dry matter content of fresh faeces, were significantly higher for the angle of 6&#176 than for the 4&#176 (1.4137 vs. 1.3030, during the whole fattening period; P < 0.0001). With a slope angle of 6&#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.
Cite this paper: Alonso, F. , Mateos, A. , Vázquez, J. , Garcimartín, M. , Sánchez, E. and Ovejero, I. (2018) Flat Belt Separation System under Slat in Fattening Pig Housing: Effect of Belt Slope Angle. Agricultural Sciences, 9, 692-702. doi: 10.4236/as.2018.96048.

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