Table 5. Effects of increased CP intake during pregnancy period on the cow growth performance, subsequent reproduction, and calf birth BW in Hanwoo

Item	CON (n = 34)	TRT (n = 34)	p-value
Months of age	64.96 ± 8.55	61.90 ± 6.03	0.682
Initial BW (30 d of pregnant) (kg)	545.18 ± 57.91	557.74 ± 47.82	0.333
Final BW (30 d of delivery) (kg)	556.06 ± 59.49	566.35 ± 47.82	0.434
Average daily gain (kg)	0.12 ± 0.15	0.10 ± 0.19	0.541
Dry matter intake (kg/d)	8.29 ± 0.00	8.29 ± 0.00	-
Concentrate Ⅰ	3.54 ± 0.00	2.66 ± 0.00	-
Concentrate Ⅱ	-	0.88 ± 0.00
Rice straw	4.75 ± 0.00	4.75 ± 0.00	-
Calf birth BW
Female (No)	12	17	-
Birth BW	24.89 ± 2.61b	28.61 ± 2.52a	0.001
Male (No)	22	17	-
Birth BW	27.45 ± 2.52b	30.65 ± 3.14a	0.002
Reproductive performance
No. of SPC	1.43 ± 0.59	1.50 ± 0.77	0.619
Conception rate 1st (%)	62.8	63.9	-

Means with difference superscripts in the same row are significantly different (p < 0.05).
CP, crude protein; BW, body weight; CON, control; TRT, treatment; SPC, services per conception.