Effect of sugarcane fiber digestibility, conservation method and concentrate level on the ruminal ecosystem of beef cattle

AMB Express

Table 4 Relative population of ruminal microorganisms in function of digestibility of neutral detergent fiber (high or low NDFD) of fresh sugarcane and level of concentrate in diet (60 or 80%), considering the means of two collection times

Species	60% concentrate		80% concentrate		SEM	P value
Species	Low NDFD¹	High NDFD²	Low NDFD²	High NDFD²	SEM	NDFD	Diet	NDFD*Diet
F. succinogenes	0.012^b	0.023^a	0.010^b	0.006^b	0.005	0.74	0.02	0.06
R. albus	0.002^b	0.012^a	0.004^ab	0.002^b	0.003	0.21	0.20	<0.01
R. flavefaciens	0.012^ab	0.008^b	0.013^ab	0.031^a	0.007	0.49	0.07	0.09
S. bovis	0.024	0.019	0.004	0.005	0.008	0.94	<0.01	0.57
R. amylophilus	0.015	0.009	0.021	0.021	0.006	0.47	0.07	0.37
M. elsdenii	0.145	0.070	0.237	0.254	0.106	0.38	0.25	0.29

The relative population size is presented as percentage of total microbial population
NDFD effect of NDF digestibility (NDFD), Diet effect of level of concentrate in diet
^a,bMeans within a row with different superscript letters differ, P < 0.05
¹SP91-1049 sugarcane genotype
²IAC86-2480 sugarcane genotype