Potential of selected plant extracts to control severe subacute ruminal acidosis in vitro as compared with monensin

Table 5 Effect of monensin (12 μg/ml) and cinnamon extract (1.5 mg/ml) addition on rumen fermentation products at 24 h using corn and barley grains as substrate (Exp. 3)

Items	Corn			Barely			SEM²
	Treatments¹
	CON	MON	CIN	CON	MON	CIN
Lactic acid (mM)	38.30^c	28.09^cd	21.07^d	139.79^a	103.41^b	141.7^a	4.17
Total VFA (mM)	218.1	209.9	214.9	205.3	220.4	189.6	7.4
Acetate %	58.09^b	53.36^c	58.62^b	61.74^a	58.20^b	60.86^a	0.4
Propionate %	23.1^d	31.6^a	24.1^cd	24.7^cd	29.8^b	24.8^c	0.4
Butyrate%	16.5^a	12.96^c	15.2^b	12.4^d	10.6^e	12.7^cd	0.1
Acetate: Propionate	2.52 ^a	1.69^b	2.43^a	2.57^a	1.95^b	2.45^a	0.05

^a-d Means in the same row with different superscripts differ (P < 0.001)
¹CON Control, MON Monensin, CIN Cinnamon extract
²SEM* Standard error of the mean, SEM for monensin was 6.1, 0.3, 0.04 for lactic acid, propionic, and acetate: propionate, respectively
The p-value of the substrate and treatment effects was < 0.01 for lactic acid, acetate, butyrate, and acetate: propionate ratio. The p-value of the treatment effect was < 0.01, but no significant effect of substrate on propionate. There was no significant effect (P > 0.05) of substrate and treatments on TVFA. The p-value of the substrate x treatment interaction was < 0.01 for lactic acid, propionate, and butyrate. No significant effect (P > 0.05) of the substrate x treatment interaction on acetic acid, TVFA, and acetate: propionate ratio

ISSN: 1746-6148