Effects of dietary valine supplementation during late gestation on the reproductive performance and mammary gland development of gilts

Table 7 Effects of dietary valine: lysine ratio during late gestation on plasma biochemicals

Items	Dietary treatments			Linear	Quadratic
Items	LV	MV	HV	Linear	Quadratic
Day 0 of lactation
Glucose, mmol/L	4.92 ± 0.18	5.05 ± 0.17	4.98 ± 0.19	0.870	0.627
Urea nitrogen, mmol/L	2.77 ± 0.17	2.77 ± 0.16	2.50 ± 0.17	0.076	0.539
Triglyceride, mmol/L	0.51 ± 0.11^b	0.89 ± 0.17^a	1.11 ± 0.07^a	< 0.001	0.104
Total protein, g/L	67.36 ± 1.57	70.93 ± 1.01	69.48 ± 1.37	0.448	0.104
Cholesterol, mmol/L	1.64 ± 0.12	1.81 ± 0.08	1.76 ± 0.18	0.487	0.269
Insulin, mIU/L	11.12 ± 0.74	10.47 ± 0.28	11.33 ± 0.79	0.267	0.222
Prolactin, ng/mL	56.54 ± 0.54^c	64.02 ± 0.89^b	69.20 ± 0.62^a	< 0.001	0.026
Day 10 of lactation
Glucose, mmol/L	5.57 ± 0.13	5.25 ± 0.15	5.25 ± 0.22	0.238	0.324
Urea nitrogen, mmol/L	4.37 ± 0.23	3.98 ± 0.14	3.92 ± 0.26	0.063	0.213
Triglyceride, mmol/L	0.86 ± 0.07^b	1.07 ± 0.09^a	1.03 ± 0.08^a	0.1096	0.046
Total protein, g/L	53.05 ± 1.82^b	54.55 ± 1.67^b	72.71 ± 0.83^a	< 0.001	0.017
Cholesterol, mmol/L	2.71 ± 0.12	2.54 ± 0.26	2.61 ± 0.10	0.694	0.408
Insulin, mIU/L	4.51 ± 0.52	4.95 ± 0.52	4.83 ± 0.46	0.756	0.777
Prolactin, ng/mL	21.65 ± 0.78^b	22.37 ± 0.16^ab	23.72 ± 0.57^a	0.045	0.246

Results were presented as mean values with their standard errors, n = 10. LV: total valine: lysine = 0.63: 1; MV: total valine: lysine = 0.73: 1; HV: total valine: lysine = 0.93: 1. Means not sharing the same letter are different (P < 0.05)

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