Table 4. Effects of protein sources on standardized ileal digestibility in pigs

Item (%)	FM	BSFM	BSFE	SEM	p-value
Essential amino acid
Arginine	90.90^a	85.91^b	87.99^ab	1.16	0.005
Histidine	87.42	84.95	85.47	1.27	0.219
Isoleucine	89.49^a	85.48^b	86.48^ab	1.29	0.015
Leucine	87.13^a	84.34^b	85.55^ab	0.86	0.028
Lysine	87.21	84.34	85.83	1.52	0.172
Methionine	88.22	85.47	86.39	2.16	0.434
Phenylalanine	88.00	84.52	85.03	2.29	0.286
Threonine	85.24	84.46	82.95	1.28	0.324
Tryptophan	85.28	84.36	84.96	1.72	0.838
Valine	85.93	86.23	84.13	1.26	0.142
Average	87.48	85.01	85.48
Non-essential amino acid
Alanine	84.97	84.31	85.10	0.80	0.584
Aspartic acid	81.35	79.69	79.89	1.24	0.365
Cystine	76.07	69.68	73.78	2.59	0.074
Glutamic acid	86.89	84.39	85.64	1.65	0.342
Glycine	62.08	64.83	68.15	8.64	0.784
Proline	53.68	50.23	55.28	6.37	0.725
Serine	81.91	84.00	81.47	1.90	0.387
Tyrosine	84.49	80.84	80.16	2.44	0.196
Average	76.43	74.75	76.18

Means different superscript letters indicate significant differences (p < 0.05).
FM, fish meal; BSFM, black soldier fly meal; BSFE, expanded black soldier fly.