Table 1.

Dietary ingredients, nutrients, and fatty acid composition of three different energy level diets (dry matter basis).

Items	HS group	MS group	LS group
Dietary ingredients (% DM)
Corn	42.28	30.18	16.22
Soybean meal	2.45	1.69	0.77
Rapeseed meal	12.96	7.15	3.92
Cottonseed meal	5.11	3.78	1.89
Oat silage	15.00	25.00	35.00
Oat hay	15.00	25.00	35.00
Mineral salt	0.80	0.80	0.80
Limestone	0.80	0.80	0.80
Baking soda	0.10	0.10	0.10
Dicalcium phosphate	0.50	0.50	0.50
Mineral/vitamin premix a	5.00	5.00	5.00
Total	100.00	100.00	100.00
Nutritional levels (% DM)
Digestive energy DE (MJ/kg)	11.08	10.12	9.20
Crude protein	13.25	12.83	12.47
Crude ash	4.53	5.22	6.06
Crude fat	5.13	4.32	3.55
Neutral detergent fiber NDF	26.38	36.47	46.54
Acid detergent fiber ADF	16.99	22.84	29.69
Calcium	0.87	0.83	0.79
Phosphorus	1.02	0.83	0.66
Fatty acid (mg/100 g DM)
∑SFA	174.99	162.71	150.43
12:0	13.84	9.99	6.14
14:0	5.76	4.61	3.45
16:0	110.28	104.21	98.14
18:0	38.74	36.91	35.09
20:0	2.03	1.86	1.69
21:0	1.08	1.60	2.11
22:0	1.41	1.51	1.62
23:0	0.27	0.34	0.42
24:0	1.59	1.68	1.77
∑MUFA	134.06	118.46	102.87
c9-16:1	0.44	0.38	0.33
c9-18:1	102.94	91.38	79.82
c11-20:1	3.18	2.69	2.21
c13-22:1	26.48	23.00	19.51
c15-24:1	1.01	1.01	1.00
∑PUFA	191.39	184.78	178.17
18:2n-6	158.20	141.34	124.47
18:3n-6	0.11	0.18	0.26
18:3n-3	29.94	40.08	50.23
20:2n-6	0.58	0.47	0.37
20:3n-3	0.08	0.13	0.18
20:4n-6	0.08	0.13	0.18
22:2n-6	0.75	0.72	0.69
20:5n-3	0.28	0.34	0.40
22:6n-3	1.39	1.40	1.41

^aThe premix provided the following per kg of diet: Fe (as ferrous sulfate) 4.5 g/kg; Cu (as copper sulfate) 1.0 g/kg; Zn (as zinc sulfate) 6.0 g/kg; Mn (as manganese sulfate 3.0 g/kg; Co (as cobalt sulfate) 0.02 g/kg, Se 0.02 g/kg; I 0.04 g/kg; VA 250000 IU/kg; VD 30000 IU/kg; VE 25000 IU/kg.