Black Soldier Fly Larvae Meal vs. Soy Protein Concentrate Meal: A Comparative Digestibility Study in Barramundi (Lates calcarifer)

Table 5

Mean values (n = 3) of apparent digestibility coefficients (ADC) for control, black soldier fly (BSF), and soy protein concentrate (SPC) diets, mean values (n = 3) of ingredient ADC for black soldier fly larvae meal (BSFM) and soy protein concentrate meal (SPCM), and the digestible content of ingredients in barramundi (L. calcarifer)¹.

	Control	BSF	SPC	SEM^2
Diet ADC (%)
DM	89.0^a	85.3^a	88.1^a	2.63
CP	93.4^a	93.3^a	95.4^a	2.15
CL	91.6^a	90.2^a	94.0^a	2.79
GE	92.3^a	89.9^a	92.1^a	2.24
Ingredient ADC (%)		BSFM	SPCM
DM	—	76.8^a	86.0^a	4.79
CP	—	93.2^a	99.9^a	2.19
CL	—	85.8^a	100.0^b	3.64
GE	—	83.9^a	91.4^a	4.20
Digestible content^3		BSFM	SPCM
DM (g kg^−1)	—	721.2	786.9	4.38
CP	—	483.2	658.3	1.41
CL	—	94.0	13.1	0.40
GE (MJ kg^−1 DM)	—	17.2	18.8	0.86

¹An arcsine-square-root transformation was applied to the ADC data; significant differences () among means are denoted by distinct superscript letters; in cases where apparent digestibility coefficients were greater than 100%, an absolute digestibility of 100% was assumed for practical reasons. ²Pooled standard error. ³Digestible content (in g kg⁻¹ DM, unless otherwise specified) was determined through calculations involving ingredient composition (as detailed in Table 3) and ingredient ADC.