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Table 5 Effects of rumen-protected methionine supplements on the synthesis of microbial crude protein, production of NH₃-N and pH using a rumen simulation technique (n = 4)

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

Items	Treatments				SEM	P-value
Items	HP	LP	LPLMet	LPHMet	SEM	P-value
pH before feeding*	6.65	6.67	6.66	6.68	0.01	0.83
pH after feeding (0–24 h)*	6.68	6.70	6.73	6.73	0.01	0.20
MCP (mg/mL)	3.18^a	2.45^b	2.62^ab	3.10^a	0.11	0.01
NH₃-N (mg/100 mL)	18.43^a	13.09^b	13.39^b	13.58^b	0.80	0.02

MCP, microbial crude protein; NH₃-N, ammonia nitrogen; SEM, standard error of mean
^a,bSuperscripts values within the same row, are significantly different at (P < 0.05)
* The pH values have published an article of the same first author

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