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

Table 7 Slurry NH₃ emission of growing-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
0 h, mg/m ³
Phase I 50 kg	95.06 ± 17.13^x	65.05 ± 12.99^xy	33.06 ± 9.06^y	37.37 ± 7.13	29.43 ± 8.37	31.11 ± 13.76	37.36 ± 9.50	0.02	0.96
Phase II 75 kg	23.43 ± 3.60^x	9.43 ± 1.99^y	8.65 ± 1.05^y	9.44 ± 1.15	9.86 ± 2.32	8.89 ± 2.33	9.25 ± 1.79	< 0.01	0.89
Phase III 100 kg	19.98 ± 4.39^x	8.45 ± 1.12^y	4.39 ± 0.61^y	4.12 ± 0.36	4.83 ± 0.63	4.01 ± 1.79	2.85 ± 0.58	< 0.01	0.66
Phase IV 125 kg	30.48 ± 8.43^x	15.26 ± 4.01^xy	7.25 ± 2.10^y	9.29 ± 1.82	5.51 ± 2.01	9.27 ± 1.39	10.76 ± 1.36	0.03	0.28
4 h, mg/m ³
Phase I 50 kg	275.44 ± 23.37^x	156.01 ± 26.53^y	75.51 ± 16.85^z	66.67 ± 9.44	66.53 ± 17.32	67.99 ± 15.99	78.09 ± 10.47	< 0.01	0.96
Phase II 75 kg	189.89 ± 28.81^x	62.94 ± 14.14^y	43.72 ± 5.79^y	54.17 ± 11.87	54.99 ± 13.27	49.06 ± 7.82	54.86 ± 11.74	< 0.01	0.92
Phase III 100 kg	118.81 ± 18.67^x	57.71 ± 6.59^y	32.39 ± 5.49^y	28.44 ± 4.08	28.13 ± 2.92	27.82 ± 4.64	33.25 ± 2.66	< 0.01	0.81
Phase IV 125 kg	154.60 ± 25.74^x	78.74 ± 6.93^y	42.71 ± 3.54^y	50.55 ± 7.87	44.93 ± 5.82	42.69 ± 3.92	47.52 ± 7.04	< 0.01	0.86

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.
^x,y,zSuperscripts indicate differences among different levels of dietary protein

ISSN: 2049-1891