Table 4.

Analysed amino acid concentrations (as-is basis) of experimental diets.

Specification (g/kg)	Diet 1	Diet 2	Diet 3	Diet 4	Diet 5	Diet 6	Diet 7
Protein (N × 6.25)	216	195	188	170	169	166	168
Arginine	14.32	12.71	12.60	12.03	12.49	12.25	11.41
Histidine	5.63	5.07	4.56	4.26	4.16	4.03	4.04
Isoleucine	9.00	8.38	8.16	8.01	7.51	7.26	6.43
Leucine	17.22	16.31	15.01	14.41	13.66	13.20	17.35
Lysine	12.74	12.09	11.82	11.08	11.88	11.67	12.80
Methionine	4.72	4.62	4.67	4.25	6.63	4.77	4.83
Phenylalanine	11.03	9.92	8.95	8.01	7.51	7.26	6.43
Threonine	8.92	8.57	8.38	7.81	8.38	8.27	9.99
Tryptophan	2.54	2.27	2.10	2.02	2.04	1.97	2.18
Valine	10.17	9.85	9.79	9.32	9.86	9.67	10.34
Alanine	10.25	9.50	8.83	8.17	7.78	7.52	9.38
Aspartic acid	21.85	19.17	16.96	14.58	13.80	13.35	14.64
Cysteine	3.91	3.65	3.48	3.25	3.29	3.31	4.05
Glutamic acid	38.23	33.83	30.63	27.36	25.60	24.68	27.94
Glycine	8.72	7.77	6.96	6.14	5.84	5.71	4.19
Proline	12.84	11.41	10.86	10.03	9.60	9.07	11.96
Serine	10.42	9.28	8.40	7.40	7.01	6.74	7.92
Total amino acids	219.6	200.0	187.1	172.1	169.5	165.9	175.9
Dry matter	902.7	898.5	894.6	890.4	894.8	893.8	895.4