Effects of Saccharomyces cerevisiae fermentation products on performance and rumen fermentation and microbiota in dairy cows fed a diet containing low quality forage

Table 5 Effects of Saccharomyces cerevisiae fermentation product on rumen microbial populations of dairy cows fed corn stover-containing diet

Item^a	SCFP^b, g/d				SEM	P-value
Item^a	0	60	120	180	SEM	Linear	Quadratic
Fungi, 10^-3	1.79	1.89	2.04	1.88	0.063	0.12	0.05
Protozoa, 10^-1	1.59	1.24	1.30	1.14	0.044	<0.01	0.03
Ruminococcus albus, 10^-3	5.81	5.37	4.86	4.99	0.199	<0.01	0.16
Ruminococus flavefaciens, 10^-2	1.33	1.44	2.69	2.36	0.75	<0.01	0.01
Fibrobacter succinogenes, 10^-2	1.47	1.73	3.04	3.24	0.078	<0.01	0.74
Selenomonas ruminantium, 10^-7	4.23	3.32	3.06	3.03	0.139	<0.01	0.003
Megasphaera elsdenii, 10^-5	17.6	12.7	7.27	12.0	0.52	<0.01	<0.01
Streptococcus bovis, 10^-6	3.84	3.34	2.07	2.92	0.98	<0.01	<0.01

^a Rumen microbial population was expressed as the ratio to total bacterial 16S rDNA
^b Saccharomyces cerevisiae fermentation product (Diamond V Original XP, Cedar Rapids, Iowa, USA)

ISSN: 2049-1891