Dietary inclusion of a partially defatted black soldier fly (Hermetia illucens) larva meal in low fishmeal-based diets for rainbow trout (Oncorhynchus mykiss)

Caimi, Christian; Biasato, Ilaria; Chemello, Giulia; Oddon, Sara Bellezza; Lussiana, Carola; Malfatto, Vanda Maria; Capucchio, Maria Teresa; Colombino, Elena; Schiavone, Achille; Gai, Francesco; Trocino, Angela; Brugiapaglia, Alberto; Renna, Manuela; Gasco, Laura

doi:10.1186/s40104-021-00575-1

Journal of Animal Science and Biotechnology

Table 8 Effect of the dietary inclusion of BSF meal on fillet proximate composition (g/100 g ww) and fatty acid profile (g/100 g of TFA) of rainbow trout (n = 9)

From: Dietary inclusion of a partially defatted black soldier fly (Hermetia illucens) larva meal in low fishmeal-based diets for rainbow trout (Oncorhynchus mykiss)

	BSF0	BSF3	BSF6	BSF9	BSF12	BSF15	SEM	P-value
Proximate composition
DM	25.8	26.8	27.2	25.5	26.1	26.6	0.303	0.643
CP	19.2	20.0	18.3	19.2	19.6	20.5	0.323	0.493
EE	4.44	4.97	5.34	4.74	5.13	4.76	0.223	0.897
Ash	2.06^a	1.68^ab	1.54^ab	1.43^b	1.28^b	1.22^b	0.065	0.010
Fatty acid composition
C12:0	0.09^e	0.28^de	0.44^d	0.75^c	1.16^b	1.73^a	0.081	0.000
C13 iso	0.07^ab	0.07^ab	0.06^ab	0.07^a	0.05^ab	0.04^b	0.003	0.024
C14:0	2.93^c	3.00^bc	2.91^c	3.16^bc	3.35^b	4.36^a	0.078	0.000
C15 iso	0.07^b	0.07^b	0.07^b	0.06^b	0.07^b	0.09^a	0.001	0.000
C15 aiso	0.02^b	0.02^b	0.02^b	0.02^b	0.03^ab	0.04^a	0.002	0.000
C14:1 c-9 + C15:0	0.33^b	0.33^b	0.32^b	0.34^b	0.34^b	0.43^a	0.007	0.000
C16:0	18.6^b	19.1^b	18.8^b	19.6^b	20.2^b	25.4^a	0.361	0.000
C17 iso	0.21^b	0.22^b	0.21^b	0.20^b	0.22^b	0.28^a	0.005	0.000
C17 aiso	0.43^cd	0.42^d	0.42^d	0.50^bc	0.52^b	0.64^a	0.013	0.000
C16:1 c-9	4.88^c	5.14^bc	5.03^bc	5.29^bc	5.52^b	6.31^a	0.085	0.000
C17:0	0.29^b	0.28^b	0.29^b	0.27^b	0.28^b	0.40^a	0.008	0.000
C18 iso	0.12	0.11	0.10	0.12	0.12	0.12	0.004	0.421
C17:1 c-9	0.19	0.18	0.20	0.23	0.21	0.21	0.006	0.217
C18:0	5.11^b	5.13^b	5.10^b	5.32^b	5.44^b	6.53^a	0.078	0.000
C18:1 t-6–10	0.09^b	0.10^b	0.09^b	0.10^b	0.11^ab	0.12^a	0.002	0.000
C18:1 t-11–12	0.03	0.03	0.02	0.02	0.02	0.03	0.001	0.104
C18:1 t-13–14 + c-6–8	0.12^b	0.12^b	0.11^b	0.13^b	0.12^b	0.16^a	0.003	0.000
C18:1 c-9	23.3^d	24.0^cd	24.9^bcd	25.4^bc	26.6^b	31.3^a	0.397	0.000
C18:1 c-11	2.88^b	2.93^b	2.92^b	2.93^b	2.99^b	3.50^a	0.038	0.000
C18:2 n-6	21.0^a	21.6^a	21.8^a	20.9^a	20.7^a	12.3^b	0.513	0.000
C18:3 n-3	2.51^a	2.62^a	2.51^a	2.41^a	2.22^a	0.93^b	0.089	0.000
C18:3 n-6	0.32^a	0.31^a	0.34^a	0.36^a	0.29^a	0.12^b	0.014	0.000
C20:0	0.16^b	0.17^b	0.18^b	0.18^b	0.18^b	0.23^a	0.004	0.000
C20:1 c-9	1.17^b	1.15^b	1.20^b	1.22^b	1.26^ab	1.44^a	0.024	0.003
C20:1 c-11	0.17^a	0.16^ab	0.15^ab	0.15^ab	0.14^b	0.05^c	0.006	0.000
C20:2 n-6	0.98^a	0.93^a	1.01^a	0.96^a	0.95^a	0.66^b	0.025	0.000
C20:3 n-3	0.15^a	0.15^a	0.16^a	0.14^a	0.14^a	0.07^b	0.005	0.000
C20:3 n-6	0.63^a	0.59^a	0.64^a	0.70^a	0.60^a	0.20^b	0.025	0.000
C20:4 n-6	0.75^a	0.72^a	0.73^a	0.76^a	0.62^a	0.22^b	0.031	0.000
C20:5 n-3	2.96^ab	3.14^a	2.68^ab	2.53^b	1.82^c	0.54^d	0.128	0.000
C22:0	0.10	0.10	0.12	0.12	0.11	0.11	0.002	0.055
C22:1 n-9	0.14	0.14	0.15	0.16	0.17	0.17	0.006	0.517
C22:5 n-3	0.92^ab	1.03^a	0.92^ab	0.80^b	0.55^c	0.12^d	0.046	0.000
C22:6 n-3	8.19^a	5.56^b	5.35^bc	4.18^cd	2.97^d	1.11^e	0.326	0.000
Σ SFA	27.7^b	28.4^ab	28.2^ab	29.7^ab	31.0^ab	35.7^a	0.821	0.043
Σ BCFA	0.91^bc	0.91^bc	0.86^c	0.97^b	1.00^b	1.22^a	0.018	0.000
Σ MUFA	33.0^d	34.0^cd	34.8^bcd	35.6^bc	37.2^b	43.3^a	0.519	0.000
Σ PUFA	38.4^a	36.7^ab	36.1^ab	33.8^bc	30.8^c	16.3^d	1.089	0.000
Σ PUFA / Σ SFA	1.39^a	1.29^a	1.28^a	1.14^b	1.00^c	0.39^d	0.047	0.000
Σ n-3	14.7^a	12.5^b	11.6^bc	10.1^c	7.71^d	2.78^e	0.559	0.000
Σ n-6	23.7^a	24.2^a	24.5^a	23.7^a	23.1^a	13.5^b	0.590	0.000
Σ n-3 / Σ n-6	0.62^a	0.51^b	0.47^b	0.43^b	0.34^c	0.19^d	0.020	0.000

Abbreviations: BSF Hermetia illucens, ww wet weight, TFA total fatty acid, SEM standard error of the mean, DM dry matter, CP crude protein, EE ether extract, c cis, t trans, SFA saturated fatty acids, BCFA branched chain fatty acids, MUFA monounsaturated fatty acids, PUFA polyunsaturated fatty acids. Values are reported as mean of duplicate analyses. Different superscripts within a row indicate significant differences (P < 0.05)

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ISSN: 2049-1891

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