Chemical characteristics of beddings for swine: Effects of bedding depths and of addition of inoculums in a pilot-scale
2012
Corrêa, É.K. | Corezzolla, J.L. | Corrêa, M.N. | Bianchi, I. | Gil-Turnes, C. | Lucia, T., Jr
The effect of depths and of addition of inoculums on the chemical content of swine beddings was evaluated. For beddings 0.25m (25D) and 0.50m (50D) deep, three treatments were tested in two repeats with the same beddings: control (no inoculums); T1 (250g of Bacillus cereus var. toyoii at 8.4×10⁷CFU/g); and T2 (250g of a pool of Bacillus sp. at 8.4×10⁷CFU/g) (250g for 25D and 500g for 50D). For 25D, the C:N ratio was lower, but N, K and C contents were greater than for 50D (P<0.05). The inoculums did not benefit any chemical parameter (P>0.05). In the second repeat, beddings presented lower C:N ratio and greater N, P and K contents than in the first repeat (P<0.05). Thus, the compost produced after using 25D twice had greater fertilizer value than that of 50D.
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