Table 4. In vitro gas production characteristics of experimental diets incubated in buffered rumen fluid

Items	n	Treatments¹⁾		SEM	p-value
Items	n	Corn TMR	Rice TMR	SEM	p-value
Gas (mL/g DM)
3 h	4	19.5	21.6	0.66	<0.05
6 h	4	47.6	51.2	1.48	<0.05
12 h	4	103.6	113.3	2.18	<0.01
24 h	4	174.0	187.7	1.74	<0.01
48 h	4	225.3	241.4	2.36	<0.01
Fitted parameters of gas²⁾
V_max	4	269.6	286.2	4.06	<0.01
K_g	4	0.039	0.047	0.0011	0.21

Corn TMR, control diet containing 33% flaked corn; Rice TMR, the diet containing 33% rice gain.
V_max, theoretical maximum gas production (mL/g DM); K_g, fractional rate of gas production (h⁻¹)
TMR, total mixed ration; DM, dry matter; SEM, standard error of the mean.