Growth, survival and fatty acid composition of juvenile Litopenaeus vannamei fed different oils in the presence and absence of phospholipids

Effects of dietary menhaden oil, soybean oil and soybean lecithin oil at different ratios on growth, body composition and blood chemistry of juvenile Litopenaeus vannamei

“…Survival, however, was significantly affected. Shrimp fed diets without SL (3% MO and 3% SO) showed the poorest survival among these groups, which is inconsistent with the findings of González-félix et al (2002a) and Kumaraguru vasagam et al (2005) in juvenile L. vannamei and P. monodon. The difference probably was due to low initial wet weight (0.08 ± 0.003 g).…”

“…Many studies have demonstrated that, supplementing PL to the diet of shrimp usually showed higher growth rate compared to the diets having respective oil without PL (Kanazawa et al 1985;Coutteau et al 1996;Coutteau et al 2000;Gong et al 2001;González-félix et al 2002a;Kumaraguru vasagam et al 2005). No significant differences in growth at this trial probably were due to the following two reasons.…”

“…Significant effects of PL supplementation on survival had been demonstrated in larval shrimp and crab (Kanazawa et al 1985;Coutteau et al 2000;Cheng et al 1998), the dietary PL supplementation can increase resistance to salinity stress and osmotic stress in shrimp postlarval and larval (D'Abramo et al 1981;Camara et al1996;Kontara et al 1997;Coutteau et al 2000;Gong et al 2001;Palacios et al 2004). Usually, juvenile shrimp (more than 0.9 g) appear to be less sensitive to deficiency of PL (González-félix et al 2002a;Kumaraguru vasagam et al 2005).…”

“…For that reason, partial replacement of fish oil by vegetable oils would be only possible when these fatty acids are present in the diets in sufficient quantities to meet the EFA requirements. For instance, in the purified or semipurified diets, shrimp fed vegetable oils as lipid source had lower growth rate compared to shrimp fed fish oil as lipid source (Lim et al 1997;González-félix et al 2002a). However, in the practical diets, fish oil may be replaced by vegetable oils (sunflower oil, peanut oil, palm oil) in the presence of soy lecithin supplementation without altering shrimp growth (Kumaraguru vasagam et al 2005).…”

Metabolite Profiles in Starved Diporeia spp. Using Liquid Chromatography-Mass Spectrometry (LC-MS) Based Metabolomics

“…Phosphatidylcholine is one such important PL, which forms lipoprotein precursors aiding in the synthesis of cholesterol (both high-and low-density lipoprotein forms) in shrimp (Sánchez-Paz et al, 2006). In crustaceans, cholesterol is crucial for oocyte maturation, larval development, and control of molting cycle (Lee and Puppione, 1978;Hertrampf and Meyer, 1991;Coutteau et al, 1997;Gonzalez-Felix et al, 2002;YepizPlascencia et al, 2002). Therefore, it can be concluded that the persistent low levels of PUFAs and PLs in starved Diporeia can negatively impact several physiological functions, including energy production, immune function, osmoregulation and reproduction.…”