Table 3. Concentrations of lactic acid and acetic acid as a function of ensiling days

Organic acids	Forage type	Ensiling days									SEM
Organic acids	Forage type	1	2	3	5	10	15	20	30	45	SEM
Lactic acid (LA) (g/kg DM)	Proso millet	10.1^eB	14.1^deB	23.2^cB	21.6^cdB	29.6^bcC	21.8^cdC	40.0^aB	37.0^abC	42.5^aC	3.64
	Corn	17.6^eB	28.6^dA	33.6^dAB	42.9^cA	44.3^cB	48.0^cB	57.5^bA	62.0^abB	66.7^aB	2.98
	Sorghum-sudangrass hybrid	31.3^eA	36.1^deA	39.7^deA	45.2^dA	67.9^cA	71.0^cA	69.3^cA	98.4^bA	126.6^aA	5.49
Acetic acid (AA) (g/kg DM)	Proso millet	5.67^eC	11.1^deB	14.7^dC	14.1^dC	26.3^cC	25.1^cC	62.7^aA	49.0^bB	41.7^bB	3.37
	Corn	10.3^dB	14.8^dB	22.6^cB	27.1^cB	37.6^bB	34.5^bB	26.0^cB	48.4^aB	38.2^bB	2.24
	Sorghum-sudangrass hybrid	15.9^eA	57.6^cdA	49.6^dA	63.3^cA	54.8^cdA	77.5^bA	61.6^cA	83.2^bA	100.3^aA	4.63
LA/AA	Proso millet	1.78^a	1.27^bB	1.58^abA	1.53^abA	1.13^b	0.87^cdB	0.64^dC	0.76^dB	1.02^bcB	0.15
	Corn	1.71^bc	1.93^abA	1.48^cdA	1.58^bcdA	1.18^d	1.39^cdA	2.21^aA	1.28^dA	1.75^bcA	0.21
	Sorghum-sudangrass hybrid	1.97^a	0.62^bC	0.80^bB	0.71^bB	1.24^ab	0.92^bB	1.13^abB	1.18^abA	1.26^abB	0.45

Values with different lowercase letters within each row show significant difference among ensiling days with the same forage type.
Values with different capital letters within each column show significant differences among forage types in the same ensiling day (p < 0.05).