TY - JOUR
T1 - Influence of dietary recombinant microbial lipase on performance and quality characteristics of rainbow trout, Oncorhynchus mykiss
AU - Samuelsen, Troels
AU - Isaksen, Mai
AU - McLean, Ewen
PY - 2001
Y1 - 2001
N2 - In order to assess whether supplementary lipase affected growth and body composition of trout, four diets were produced, consisting of (A) feed containing high (2083 mg kg(-1)), (B) low (208.3 mg kg(-1)) concentrations of lipase, (C) heat-treated (inactivated) lipase (2083 mg kg(-1)), and (D) a basal control diet. Rainbow trout (n = 40/tank; initial wt. 23.22 +/- 4.81 g; length 124.7 +/- 6.35 mm) were fed, according to commercial feed tables, 6 days/week for 202 days. Retained activity of supplemental lipase was verified by monitoring free fatty acid appearance (FAA), which was significantly higher(P < 0.05) in treated feed and oil. Lipase addition had no effect(P > 0.05) on growth, fillet proximate composition, hepatosomatic, cardiac, or gut indices, and carcass percentage. However, lipase supplementation influenced the mono-unsaturated fatty acid profiles of the fillet (P < 0.05). (C) 2001 Elsevier Science B.V. All rights reserved.
AB - In order to assess whether supplementary lipase affected growth and body composition of trout, four diets were produced, consisting of (A) feed containing high (2083 mg kg(-1)), (B) low (208.3 mg kg(-1)) concentrations of lipase, (C) heat-treated (inactivated) lipase (2083 mg kg(-1)), and (D) a basal control diet. Rainbow trout (n = 40/tank; initial wt. 23.22 +/- 4.81 g; length 124.7 +/- 6.35 mm) were fed, according to commercial feed tables, 6 days/week for 202 days. Retained activity of supplemental lipase was verified by monitoring free fatty acid appearance (FAA), which was significantly higher(P < 0.05) in treated feed and oil. Lipase addition had no effect(P > 0.05) on growth, fillet proximate composition, hepatosomatic, cardiac, or gut indices, and carcass percentage. However, lipase supplementation influenced the mono-unsaturated fatty acid profiles of the fillet (P < 0.05). (C) 2001 Elsevier Science B.V. All rights reserved.
U2 - 10.1016/S0044-8486(00)00519-6
DO - 10.1016/S0044-8486(00)00519-6
M3 - Journal article
SN - 0044-8486
VL - 194
SP - 161
EP - 171
JO - Aquaculture
JF - Aquaculture
IS - 1-2
ER -