Table 3.

Chemical analysis of fish meal sources, experiment 2 (as-fed basis)

Item	Formulated values1	Fish meal source2
		1	2	3
Proximate analysis, %3
Dry matter	93.70	91.07	89.64	91.72
Crude protein	63.28	66.53	57.83	62.46
Ca	4.28	4.13	3.97	5.93
P	2.93	2.48	2.51	2.78
Ether extract	9.71	8.78	7.64	8.64
Ash	16.07	17.43	16.45	18.46
Total volatile N4	–	0.13	0.10	0.09
Modified Torry digestibility4	–	91.70	85.20	89.10
Total amino acids, %5
Arg	3.84	3.66	3.59	3.89
Cys	0.61	0.59	0.49	0.51
His	1.44	2.26	1.35	1.39
Ile	2.56	2.13	1.93	2.18
Leu	4.47	4.75	4.14	4.46
Lys	4.56	5.18	4.54	4.86
Met	1.73	1.86	1.66	1.80
Phe	2.47	2.57	2.29	2.38
Thr	2.58	2.79	2.54	2.64
Trp	0.63	0.87	0.65	0.63
Tyr	1.88	2.09	1.87	2.00
Val	3.06	2.62	2.37	2.67

¹Recommended values from NRC (2012).

²Source 1 (IPC 790) was from The Scoular Company (Minneapolis, MN); source 2 (Omega Special Select Menhaden) was from Omega Protein (Houston, TX); and source 3 (LT Prime Menhaden) was from Daybrook Fisheries, Inc. (New Orleans, LA). Samples were obtained at the mill during diet manufacturing and composited. All fish meal sources were from the 2014 catch year.

³Ward Laboratories, Inc., (Kearney, NE).

⁴New Jersey Feed Laboratory (Trenton, NJ).

⁵University of Missouri Agriculture Experiment Station Chemical Laboratories (Columbia, MO).