Effect of Dietary Inositol on Growth, Feed Utilization and Blood Biochemical Parameters for Juvenile Barramundi (<i>Lates calcarifer</i> Bloch)

Abstract

Problem statement: The utilization of inositol was detected for growth performance and erum biochemical parameters of juvenile barramundi (Lates calcarifer). Approach: A 56 day feeding trial was conducted to evaluate the effect of inositol on growth, feed utilization and serum biochemical parameters for juvenile barramundi Lates calcarifer (initial size 5.51±0.07g). Six experimental fish meal-based isonitrogenous (42% crude protein) and isolipidic (10% crude lipid) diets containing levels of inositol (350, 364, 458, 507, 720, 1050

Growth performance, haematological parameters, antioxidant status and salinity stress tolerance of juvenile Pacific white shrimp (Litopenaeus vannamei ) fed different levels of dietary myo -inositol

“…These results agreed with Diao et al. () for Barramundi, which showed a similar tendency between serum TP and dietary MI supplementation, but did not agree with Waagbø et al. () for Atlantic salmon, which reported that serum TP correlated negatively with dietary MI supplementation.…”

“…In addition, Diao et al. () reported that MI could increase the serum TP of barramundi. In Jian carp, enhancement of non‐specific immune response by MI might be principally associated with improvement of lysozyme activity and phagocytic activity of leucocyte (Jiang et al., ).…”

“…Myo ‐inositol (MI), as the most biologically active isomer of inositol, is classified as a vitamin‐like essential nutrient for most aquatic animals and normally occurs as a constituent of phospholipids in cell membranes (Khosravi et al., ; Shiau & Su, ). MI also plays a vital role in regulation of lipid transport and metabolism in some fish species and as the structural basis for several secondary messengers involved in regulation of signal transduction pathway in eukaryotic cells (Diao et al., ; Peres, Lim, & Klesius, ; Shiau & Su, , ). However, only a few trials have been conducted to study the potential antioxidative effects of MI, and these researches indicated that MI might be beneficial for inhibiting generation of free radical and finally prevent tissues from oxidative damage (Jiang, Feng, Liu, Jiang, & Zhou, ; Jiang et al., , ; Santoro et al., ).…”

“…However, the opposite trend was obtained when several immunostimulants, such as vitamin C, Chinese herbs, chlorogenic acid, ginger and probiotic, were used as feed additives to modulate non-specific immunity of fish (AI-Dohail, Hashim, & Aliyu-Paiko, 2009;Huang et al, 2016;Nya & Austin, 2009;Sun et al, 2017;Wang et al, 2018). In addition, Diao et al (2010) reported that MI could increase the serum TP of barramundi. In Jian carp, enhancement of non-specific immune response by MI might be principally associated with improvement of lysozyme activity and phagocytic activity of leucocyte (Jiang et al, 2010a).…”

“…Quantitation of dietary inositol requirement has been studied in some fish and shrimp. These studies indicated that the requirement of inositol was 94.3 mg/ kg diet in parrot fish (using semi-purified diets, Khosravi et al, 2015), 165.3 mg/kg diet in gibel carp (using purified diets, Gong et al, 2014), 400 mg/kg diet in hybrid tilapia (using purified diets, Shiau & Su, 2005), 507 mg/kg diet in barramundi (using practical diets, Diao et al, 2010), 518 mg/kg diet in Jian carp (using semipurified diets, Jiang, Feng, Liu, Jiang, & Zhou, 2009a), 617 mg/kg diet in Olive flounder (using semi-purified diets, Lee et al, 2009), 3400 mg/kg diet in grass shrimp (using purified diets, Shiau & Su, 2005). The signs of dietary MI deficiency, including anorexia, poor growth, poor appetite, oedema, skin lesion, dark skin coloration, distended stomach, slow gastric emptying, fatty liver, muscle degeneration, decreased cholinesterase, transaminases and the content of phospholipids, have been reported in some aquatic species (Deshimaru & Kuroki, 1976;NRC 2011;Waagbø, Sandnes, Lie, & Roem, 1998).…”