Table 4.

Stimulation of growth of representative fibrolytic rumen bacteria by bean husks

		Rumen bacterial colonizationa						Rumen bacterial abundanceb
Fiber or husk, origin	H/C ratioc	By qPCR, × 107/mL			By clone library, %			By qPCR, × 107/mL
		Fs	Rf	Ra	Fs	Rf	Ra	Fs	Rf	Ra
Beet pulp, Japan	1.53	0.2	5.0	0.1	-	-	-	-	-	-
Rice straw, Japan	0.68	747.4	36.7	19.0	3.2	0.0	0.0	30.9	1.2	0.8
Chickpea, Myanmar	0.06	476.3	72.4	7.2	6.5	0.0	3.2	229.1	1.9	0.3
Lablab bean, Myanmar	0.38	1044.0	27.5	91.6	1.4	0.0	2.8	371.5	3.2	6.0

Data are based on Fuma et al. [52] and Ngwe et al. [53]

^aEach fiber source was incubated for 24 h in the rumen and colonized bacteria were quantified by quantitative PCR (qPCR)

^bBacteria quantified were Fibrobacter succinogenes (Fs), Ruminococcus flavefaciens (Rf) and Ruminococcus albus (Ra)

^cHemicellulose/cellulose ratio indicates the degree of complexity of fiber structure