. 2015 Apr;28(4):511–518. doi: 10.5713/ajas.14.0622

Table 3.

Fermentation characteristics of silage

Characteristics	Treatment¹

	R0	R1	R2	R3	R4
Temperature (°C)	28.53^a	28.87^a	29.03^ab	29.50^bc	29.90^c
pH	3.52^a	3.51^a	3.65^ab	3.84^bc	4.00^c
LAB (log cfu/g)	5.40^a	6.49^bc	5.93^ab	6.74^bc	7.28^c
NH₃-N (mM/g DM)	13.93^a	21.68^a	34.09^b	42.21^b	43.56^b
WSC (g/kg DM)	24.09	21.60	17.06	17.40	17.99
Lactic acid (g/kg DM)	32.8^b	29.8^ab	28.7^ab	22.9^a	20.4^a
Acetic acid (g/kg DM)	6.26	5.31	5.68	5.38	5.85
Propionic acid (g/kg DM)	0.23	0.13	0.58	0.95	0.15
Butyric acid (g/kg DM)	0.77	0.71	0.66	0.60	0.38
Total phenols (g/kg DM)	45.3^a	75.0^b	71.1^ab	87.2^b	94.1^b
Total tannin (g/kg DM)	14.0^a	39.2^b	48.3^bc	61.1^c	69.2^c

DM, dry matter; LAB, lactic acid bacteria; WSC, Water soluble carbohydrates.

R0, P. purpureum 100%; R1, P. purpureum 75%+C. calothyrsus 25%; R2, P. purpureum 50%+C. calothyrsus 50%; R3, P. purpureum 25%+C. calothyrsus 75%; and R4, C. calothyrsus 100%.

^a–c

Values with different superscripts are significantly different from each other (p<0.01).