Sulfur, fresh cassava root and urea independently enhanced gas production, ruminal characteristics and in vitro degradability

Table 5 Effect of elemental sulfur (S), urea (U) and fresh cassava root (FCR) on total volatile fatty acid (VFA) and their molar portions

Treatments	S (%)	U (%)	FCR (mg)	Total VFA	C2	C3	C4	C2:C3
Treatments	S (%)	U (%)	FCR (mg)	(mmol/L)	(mol/100 mol)
T1	0	2	0	74.81	68.68	20.97	10.35	3.28
T2	0	4	0	74.38	68.46	21.26	10.29	3.23
T3	1	2	0	75.21	67.89	22.50	10.42	3.02
T4	1	4	0	74.73	68.12	21.77	10.30	3.13
T5	2	2	0	74.74	67.53	25.43	10.53	2.66
T6	2	4	0	74.35	68.41	25.09	10.50	2.73
T7	0	2	200	76.21	65.44	23.54	10.53	2.78
T8	0	4	200	75.74	66.69	22.66	10.64	2.94
T9	1	2	200	77.41	65.43	26.57	10.50	2.46
T10	1	4	200	77.11	67.11	25.91	10.64	2.59
T11	2	2	200	78.21	66.78	28.45	10.78	2.35
T12	2	4	200	77.76	67.19	27.06	10.75	2.49
T13	0	2	300	77.30	64.00	28.91	10.59	2.21
T14	0	4	300	75.90	64.17	26.83	10.50	2.39
T15	1	2	300	82.72	64.31	29.12	10.57	2.21
T16	1	4	300	80.74	65.11	28.17	10.72	2.31
T17	2	2	300	85.72	64.04	29.89	10.63	2.14
T18	2	4	300	85.24	65.07	29.82	10.60	2.18
T19	0	2	400	74.22	65.48	24.25	10.27	2.77
T20	0	4	400	73.74	66.28	25.52	10.71	2.60
T21	1	2	400	75.22	62.30	26.73	10.98	2.33
T22	1	4	400	74.24	64.37	25.12	10.51	2.56
T23	2	2	400	76.22	64.35	25.11	10.54	2.56
T24	2	4	400	75.74	63.15	25.80	11.05	2.46
SEM				3.37	1.86	2.70	2.22	0.32
S (%)
0				75.23	66.15	23.92^c	9.54	2.77
1				77.17	65.57	25.67^b	8.62	2.56
2				78.49	65.81	27.73^a	7.16	2.45
P-Value				0.421	0.617	<0.0001	0.063	0.081
U (%)
2				76.59^b	66.18	25.60	8.40	2.63
4				77.33^a	65.52	25.96	8.49	2.55
P-Value				0.008	0.174	0.337	0.872	0.146
FCR (mg)
0				74.70^c	68.18^a	22.75^c	8.98^ab	2.98^a
200				77.08^b	66.43^b	26.23^b	7.78^bc	2.60^b
300				81.19^a	64.45^c	28.54^a	6.75^c	2.24^c
400				74.89^c	64.32^c	25.56^b	10.26^a	2.54^b
P-Value				<0.0001	<0.0001	<0.0001	0.0004	<0.0001
Interaction
S*U				0.717	0.713	0.884	0.996	0.436
S*FCR				<0.0001	0.449	0.017	0.018	0.249
U*FCR				0.437	0.939	0.980	0.904	0.772
SUFCR				0.958	0.908	0.864	0.791	0.861

C2 means acetic acid; C3 means propionic acid; C4 means butyric acid; C2:C3 means acetic acid to propionic acid ratio
^a,b,c means within column showed with different superscript letter accepted significantly different

ISSN: 1746-6148