Effect of different dietary protein levels and amino acids supplementation patterns on growth performance, carcass characteristics and nitrogen excretion in growing-finishing pigs

Table 5 Blood profiles of finishing pigs fed low protein diet supplemented with different amino acids (n = 6)

Item	HCP	MCP (−2 %)	LCP(−4 %)					P ₁	P ₂
Item	10 EAAs	10 EAAs	10 EAAs	Lys, Met, Thr, Trp	Lys, Met,Thr, Trp, Ile	Lys, Met, Thr, Trp, Val	Lys, Met, Thr, Trp, Ile, Val	P ₁	P ₂
SUN, mmol/L	7.35 ± 0.38^x	4.62 ± 0.20^y	3.98 ± 0.33^y	4.74 ± 0.38	3.94 ± 0.28	4.15 ± 0.43	4.56 ± 0.55	< 0.01	0.51
ALB, g/L	40.78 ± 1.71	41.19 ± 2.15	43.89 ± 2.84	41.29 ± 2.73	41.26 ± 2.01	43.50 ± 2.75	41.1 ± 3.95	0.59	0.92
TP, g/L	57.92 ± 1.45	58.94 ± 1.19	60.11 ± 2.17	56.28 ± 1.88	57.35 ± 1.05	59.26 ± 2.16	62.56 ± 1.14	0.66	0.17
NH₃-N, mg/L	40.64 ± 1.96	34.29 ± 3.05	35.09 ± 1.19^ab	37.33 ± 1.46^a	31.75 ± 0.77^b	36.73 ± 1.41^a	35.36 ± 1.32^ab	0.13	0.01

SUN, Serum urea nitrogen; ALB, Albumin; TP, Total protein.
P₁ represented the P value of ANOVA among the HCP diet, MCPdiet and LCP diet with balancing 10 EAAs.
P₂ represented the P value of ANOVA among different amino acid balanced patterns of the LCP diets groups.
^a,bSuperscripts indicated differences among different amino acid balanced patterns of LCP diets groups.
^x,ySuperscripts indicate differences among different levels of dietary protein

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