Rumen-protected methionine a feed supplement to low dietary protein: effects on microbial population, gases production and fermentation characteristics

Table 6 Effects of supplementation of RPMet with low CP on daily production and composition of gases using a RUSITEC technique (n = 4)

Items	Treatments				SEM	P-value
Items	HP	LP	LPLMet	LPHMet	SEM	P-value
Total gas production (mL/day)	1435.75^a	1390.75^b	1381.25^b	1377.00^b	7.06	< 0.01
Individual gas production (mL/day)
Hydrogen	4.88	3.65	3.80	4.10	0.25	0.31
Methane	302.47^a	200.65^b	205.29^b	211.54^b	11.83	< 0.01
Carbon dioxide	752.37	621.35	644.73	684.06	21.31	0.13

SEM, standard error of mean
^a,bSuperscripts values within the same row, are significantly different at (P < 0.05)