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. 2024 Dec 5;14:30334. doi: 10.1038/s41598-024-82059-6

Table 2.

Parameters and the percentage variation of the nutritional contents of samples of cattle (COW) and horse dung (HOR), autoclaved and non-autoclaved, used to evaluate the decomposition rate.

Parameter t = 0 days1 t = 206 days Variation (%)
cow hor cowa hora cown horn ∆cowa ∆hora ∆cown ∆horn
Crude protein (%) 12.5 10.4 11.3 10 8.2 13.2 10.6 4 52.4 27
Ethereal extract (%) 1.8 2 1.5 1.1 1.1 1.5 20 81.8 63.6 33.3
Crude fiber (%) 13 21 14.5 19.9 13.2 15.7 11.5 5.5 1.5 33.7
Mineral material (%) 15 15 22.1 26 24.5 25.9 47.3 73.3 63.3 72.6
NDT* (in natura) (%) 59.5 53.7 58.9 50.4 57.5 54.3 1 6.1 3.4 1.1
NDT* (dry matter) (%) 66.9 60.3 58.9 50.4 57.5 54.3 13.5 16.4 16.3 11
Ca (%) 1.6 1 1.1 0.49 0.78 0.50 45.5 104 105 100
P (%) 0.96 0.52 0.3 0.25 0.27 0.24 176 51.9 255.5 116.6
N (%) 2 1.66 1.8 1.60 1.3 2.1 11.1 3.6 53.8 26.5
K (%) 0.48 0.7 0.07 0.10 0.17 0.09 585 85.7 182.3 677.7
Mg (%) 0.57 0.3 0.25 0.20 0.25 0.21 128 33.3 128 42.8
S (%) 0.15 0.12 0.25 135 0.30 0.19 66.6 112,400 100 58.3
Na (mg/kg) 130 120 120 0 151 122 8.3 100 16.2 1.6
Cu (mg/kg) 12 18 50 42 79 29 316 133.3 558.3 61.1
Fe (mg/kg) 2,400 1,800 10,700 12,000 14,500 15,000 345 566.7 504.2 733.3
Mn (mg/kg) 380 320 395 240 330 210 3.9 33.3 15.2 52.3
Zn (mg/kg) 150 80 100 96 120 90 50 20 25 12.5
B (mg/kg) 0.6 0.4 55 50 61 64 9,066 12,400 10,066 15,900

COWa: autoclaved bovine dung; HORa: autoclaved equine dung; COWn: non-autoclaved bovine dung; HORn: non-autoclaved equine dung.

*Total digestible nutrients (NDT) = digestive protein + crude fiber + digestive ethereal extract + non-nitrogenous digestive extract. Units conversion: (%) = g/Kg / 10; Dry matter (%) = 100 – humidity; crude protein = Ntotal × 6.25. ∆: percentage variation of nutritional contents at t = 206.