Preliminary study on effects of methionine hydroxy analog and taurine supplementation in a soy protein concentrate-based diet on the biological performance and amino acid composition of rainbow trout [Oncorhynchus mykiss(Walbaum)]

Abstract

Preliminary study on effects of methionine hydroxy analog and taurine supplementation in a soy protein concentrate-based diet on the biological performance and amino acid composition of rainbow trout [Oncorhynchus mykiss (Walbaum)] Abstract A feeding trial was conducted on the effects of methionine hydroxy analog (MHA) and taurine supplementation in diets with high levels of soy protein concentrate (SPC) on the growth performance and amino acid composition of rainbow trout, Oncorhynchus mykiss (Walbaum) comparing with fish meal based diet. The control diet had 520 g kg À1 fish meal. In the methionine deficient diets (5.1 g kg À1 ), fish meal was replaced by 490 g kg À1 of the SPC in the SPC49 diet. The SPC49 diet was supplemented with either MHA (6 g kg À1 ) only or a combination of MHA and taurine (2 g kg À1 ). Fish were fed isoproteic (460 g kg À1 ) and isolipidic (130 g kg À1 ) diets for 12 weeks. Growth performance (i.e. weight, feed conversion ratio, and thermal-unit growth coefficient) was inferior in fish fed the SPC49 diet. MHA supplementation improved growth performance (P < 0.05). No difference was observed when taurine was added to the SPC49 and MHA diet (P > 0.05). Whole-body taurine contents increased with taurine supplementation, whereas plasma methionine increased with MHA supplementation (P < 0.05). In conclusion, the substitution of fish meal with SPC supplemented with MHA did not negatively impact growth, and the addition of taurine did not improve growth performance in rainbow trout.

Effect of dietary taurine and methionine supplementation on growth performance, body composition, taurine retention and lipid status of Persian sturgeon,Acipenser persicus(Borodin, 1897), fed with plant-based diet

“…Boonyoung et al. () and Mambrini et al. (), however, found no significant effects of dietary methionine on whole‐body fat content in Oncorhynchus mykiss .…”

“…However, soybean meal is deficient in methionine and particularly taurine, two sulphur‐containing amino acids. Generally, soybean‐based fish feeds are supplemented with methionine, to support optimum fish growth (Boonyoung, Haga, & Satoh, ; Espe, Hevrøy, Liaset, Lemme, & El‐Mowafi, ; Mambrini, Roem, Carvedi, Lalles, & Kaushik, ), but taurine supplementation to plant‐based feeds gained attention recently (Gaylord, Teague, & Barrows, ; Jirsa, Davis, Salze, Rhodes, & Drawbridge, ; Johnson et al., ; López, Flores‐Ibarra, Bañuelos‐Vargas, Galaviz, & True, ; Lunger, McLean, Gaylord, Kuhn, & Craig, ; Takagi et al., ; Wu, Han, Qin, & Wang, ). Taurine (2‐aminoethanesulphonic acid) is an amino acid, which does not participate in protein structure and is generated as final product of sulphur‐containing amino acids metabolism (Salze & Davis, ).…”

Effects of Dietary Taurine on the Growth, Digestive Enzymes, and Antioxidant Capacity in Juvenile Sea Cucumber, Apostichopus japonicus

“…This study showed that dietary taurine did not significantly influence the growth of sea cucumbers under the present experimental conditions. The effects of taurine on growth performance of different aquatic animals including fishes (Kim et al , , ; Matsunari et al , ; Lunger et al ; Takagi et al ; Qi et al ; Salze et al ; Boonyoung et al ; Jirsa et al ) and shrimps (Shiau and Chou ; Yue et al ; Zhou et al ) were varied. It is hard to compare the effect of taurine on the growth of sea cucumbers with its effect on the growth of different fishes and shrimps.…”

Replacing fishmeal and fish oil in industrial aquafeeds for carnivorous fish

“…Taurine inclusion in plant-based diets has been shown to improve the performance of several marine fish species (Lunger et al, 2007;Chatzifotis et al, 2008;Takagi et al, 2008Takagi et al, , 2010Enteria et al, 2011). In contrast, in freshwater species a taurine requirement has been observed only in rainbow trout fed FM-free diets (Gaylord et al, 2006, though such taurine requirement is still controversial (Boonyoung et al, 2013). In some marine species the estimated taurine requirement is considerably high (Goto et al, 2001;Kim et al, 2005;Qi et al, 2012;Lim et al, 2013) and this may help explain why a taurine requirement has been established essentially in marine fish, even when fed FM-containing diets.…”