Dose and time response of ruminally infused algae on rumen fermentation characteristics, biohydrogenation and Butyrivibrio group bacteria in goats

Table 1 Composition of concentrates and proximate analysis^a and fatty acid profile of three concentrates, Leymus chinensis hay, and algae

	Concentrate (C)
	C0	C1	C3	hay	Algae
Ingrediets, g/kg DM
Corn grain	500	576	622
Soybean meal	317	257	276
Wheat bran	125	106	37.2
Limestone	20.0	18.8	17.9
CaHPO₄ · 2H₂O	10.0	13.8	17.7
Salt	12.8	13.1	13.8
Premix^b	15.0	15.4	16.2
Chemical composition, g/kg DM
DM	887	870	878	916	980
NDF	115	109	89.0	569	-
CP	215	189	192	74.0	150
Starch	405	438	436	-	ND
EE	27	27	27	36	609
Fatty acid composition, g/kg FAME
12:0	0.32	0.24	0.27	7.08	3.36
14:0	1.51	1.16	1.31	55.7	68.3
16:0	153	148	137	186	438
18:0	34.9	30.9	30.4	15.0	11.1
trans-18:1	7.23	6.36	4.79	5.87	0.47
c9-18:1	209	220	230	25.2	4.32
18:2 n-6	460	476	471	133	9.04
18:3 n-3	42.5	37.3	33.8	260	1.90
20:0	3.70	3.70	3.73	10.5	1.52
20:5 n-3	ND	ND	ND	ND	0.45
22:5 n-3	1.26	0.93	0.88	6.58	2.09
22:6 n-3	0.41	0.26	0.27	1.36	343

ND not detected; -, not measured
^aChemical composition of diets were calculated to contain (g/kg DM): DM (900, 901, 903), NDF (387, 384, 374), CP (120,120, 120), EE (32.0, 38.4, 49.7), for the Control, L-Alg and H-Alg diets, respectively.
^bPremix contained on a DM basis (per kg): Vitamin A ≥ 1,100,000 IU, Vitamin D ≥ 300,000 IU, Vitamin E ≥ 3,200 IU, Fe ≥ 7 g, Cu ≥ 1.2 g, Mn ≥ 5 g, Zn ≥ 8 g, I ≥130 mg, Se ≥ 27 mg, Co ≥45 mg

ISSN: 2049-1891