TY - JOUR
T1 - A Comprehensive Approach to Assess Feathermeal as an Alternative Protein Source in Aquafeed
AU - Jasour, Mohammad Sedigh
AU - Wagner, Liane
AU - Sundekilde, Ulrik K.
AU - Larsen, Bodil K.
AU - Greco, Ines
AU - Orlien, Vibeke
AU - Olsen, Karsten
AU - Rasmussen, Hanne T.
AU - Hjermitslev, Niels H.
AU - Hammershøj, Marianne
AU - Dalsgaard, Anne J.T.
AU - Dalsgaard, Trine K.
PY - 2017
Y1 - 2017
N2 - The effect of partially replacing fishmeal in aquafeed with feathermeal (FTH) at three levels (0%: FTH0, 8%: FTH8, 24%: FTH24) and two extrusion temperatures (100 and 130 °C) was evaluated in rainbow trout (Oncorhynchus mykiss) with respect to growth performance, metabolism response, and oxidative status of the feed proteins. Multivariate data analyses revealed that FTH24 correlated positively with high levels of oxidation products, amino acids (AA) racemization, glucogenic AAs level in liver, feed intake (FI), specific growth rate (SGR), and feed conversion ratio (FCR); and low AAs digestibility. Both FI and SGR were significantly increased when 8 and 24% feathermeal was included in the feed extruded at 100 °C, while there was a negative effect on FCR in fish fed FTH24. In conclusion, higher oxidation levels in FTH24 may give rise to metabolic alterations while lower levels of FTH may be considered as fishmeal substitute in aquafeed for rainbow trout.
AB - The effect of partially replacing fishmeal in aquafeed with feathermeal (FTH) at three levels (0%: FTH0, 8%: FTH8, 24%: FTH24) and two extrusion temperatures (100 and 130 °C) was evaluated in rainbow trout (Oncorhynchus mykiss) with respect to growth performance, metabolism response, and oxidative status of the feed proteins. Multivariate data analyses revealed that FTH24 correlated positively with high levels of oxidation products, amino acids (AA) racemization, glucogenic AAs level in liver, feed intake (FI), specific growth rate (SGR), and feed conversion ratio (FCR); and low AAs digestibility. Both FI and SGR were significantly increased when 8 and 24% feathermeal was included in the feed extruded at 100 °C, while there was a negative effect on FCR in fish fed FTH24. In conclusion, higher oxidation levels in FTH24 may give rise to metabolic alterations while lower levels of FTH may be considered as fishmeal substitute in aquafeed for rainbow trout.
KW - extrusion
KW - feathermeal
KW - fish feed
KW - fishmeal
KW - growth performance
KW - metabolite
KW - Oncorhynchus mykiss
KW - oxidation
KW - rainbow trout
U2 - 10.1021/acs.jafc.7b04201
DO - 10.1021/acs.jafc.7b04201
M3 - Journal article
C2 - 29119793
AN - SCOPUS:85037523601
SN - 0021-8561
VL - 65
SP - 10673
EP - 10684
JO - Journal of Agricultural and Food Chemistry
JF - Journal of Agricultural and Food Chemistry
IS - 48
ER -