Table 3. Blood characteristics of Hanwoo steers fed with conventional (control; 25% roughage), 50% roughage (T₅₀), and 70% roughage (T₇₀) diets by growth stage

Item / Period	Control	T₅₀	T₇₀	SEM¹⁾
Glucose (mg/dL)
Growing	63.27	62.50	63.98	3.056
Early fattening	60.27	61.83	64.56	2.899
Mid-fattening	72.35	73.15	75.17	2.571
Late fattening	60.17	66.04	64.50	3.254
Cholesterol (mg/dL)
Growing	156.6	148.0	146.2	6.781
Early fattening	189.3	149.1	136.0	6.248
Mid-fattening	129.3^a	104.8^ab	98.5^b	5.893
Late fattening	160.4^a	104.3^ab	92.2^c	6.735
Creatine (mg/dL)
Growing	1.00	0.86	0.88	0.054
Early fattening	1.32	1.25	1.12	0.076
Mid-fattening	0.98	0.92	0.87	0.069
Late fattening	1.27	1.23	1.16	0.078
BUN (mg/dL)
Growing	11.34	11.98	11.76	0.765
Early fattening	13.53^a	9.55^ab	8.62^b	0.585
Mid-fattening	8.62	5.89	7.21	0.693
Late fattening	14.56^a	8.63^ab	7.27^b	0.791
Total protein (g/dL)
Growing	11.21	11.76	11.98	0.107
Early fattening	13.51^a	9.58^ab	8.69^b	0.121
Mid-fattening	8.43	7.22	6.61	0.092
Late fattening	11.20^a	8.97^ab	7.56^b	0.106

n=8.
Values with different letters differ significantly (p<0.05).
BUN, blood urea nitrogen.