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

Sumadong, Phussorn; Cherdthong, Anusorn; So, Sarong; Wanapat, Metha

doi:10.1186/s12917-021-02999-3

Table 2 Effect of elemental sulfur (S), urea (U) and fresh cassava root (FCR) on kinetics of gas and gas production at 96 h of incubation

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

Treatments	S (%)	U (%)	FCR (mg)	Kinetics of gas				Gas production (mL/g)
Treatments	S (%)	U (%)	FCR (mg)	a (mL)	b (mL)	c	a+b (mL)	Gas production (mL/g)
T1	0	2	0	-4.53	86.05	0.052	81.51	80.92
T2	0	4	0	-5.71	95.65	0.053	89.94	89.61
T3	1	2	0	-3.25	91.53	0.052	98.28	90.41
T4	1	4	0	-5.20	88.84	0.050	83.64	83.91
T5	2	2	0	-3.42	89.60	0.051	86.18	85.52
T6	2	4	0	-6.34	82.63	0.049	76.29	86.50
T7	0	2	200	-8.13	104.20	0.078	96.07	105.95
T8	0	4	200	-7.32	102.11	0.075	94.78	94.38
T9	1	2	200	-9.78	109.43	0.089	99.65	99.64
T10	1	4	200	-8.58	104.78	0.076	96.20	94.80
T11	2	2	200	-9.37	106.90	0.080	97.54	97.51
T12	2	4	200	-9.64	107.32	0.082	97.68	102.62
T13	0	2	300	-10.05	118.63	0.090	108.58	122.35
T14	0	4	300	-11.30	122.37	0.093	111.06	130.75
T15	1	2	300	-11.24	119.00	0.091	107.76	113.20
T16	1	4	300	-11.11	123.97	0.095	112.86	113.86
T17	2	2	300	-11.79	127.79	0.097	116.00	115.68
T18	2	4	300	-12.08	120.93	0.093	108.68	116.62
T19	0	2	400	-11.00	102.46	0.075	91.46	98.45
T20	0	4	400	-11.66	105.56	0.077	93.89	94.87
T21	1	2	400	-11.56	110.58	0.087	99.02	101.96
T22	1	4	400	-12.00	103.93	0.074	91.39	93.73
T23	2	2	400	-11.27	110.64	0.080	99.37	106.31
T24	2	4	400	-12.08	110.60	0.081	98.51	104.51
SEM				1.84	12.20	0.015	9.87	12.40
S (%)
0				-8.71	104.62^b	0.07	100.91	102.16
1				-9.08	106.44^a	0.07	99.23	98.93
2				-9.49	107.05^a	0.07	131.65	101.89
P-Value				0.081	0.016	0.110	0.412	0.245
U (%)
2				-8.78	106.40	0.07	100.64^b	101.49
4				-9.41	105.67	0.07	142.35^a	100.50
P-Value				0.175	0.282	0.086	<0.0001	0.324
FCR (mg)
0				-4.74^a	89.05^c	0.05^c	86.14	86.14^c
200				-8.80^b	105.79^b	0.08^b	99.49	99.15^b
300				-11.26^c	122.11^a	0.09^a	115.06	118.72^a
400				-11.59^c	107.20^b	0.08^b	189.19	99.97^b
P-Value				<0.0001	<0.0001	<0.0001	0.367	<0.0001
Interaction
S*U				0.949	0.103	0.558	0.117	0.217
S*FCR				0.738	0.465	0.764	0.599	0.232
U*FCR				<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
SUFCR				0.428	0.776	0.888	0.893	0.076

a means the gas production from the immediately soluble fraction (mL); b means the gas production from the insoluble fraction (mL); c means the gas production rate constant for the degradable fraction b; a+b means the potential extent of gas production (mL)
^a,b,c means within column showed with different superscript letter accepted significantly different

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ISSN: 1746-6148

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