Excess dietary arginine affects urea excretion but does not improve N utilisation in rainbow trout Oncorhynchus mykiss and turbot Psetta maxima

The impaired intestinal mucosal immune system by valine deficiency for young grass carp (Ctenopharyngodon idella) is associated with decreasing immune status and regulating tight junction proteins transcript abundance in the intestine

“…Additionally, growth in fish is a process of protein deposition [46], which is strongly correlated with the amino acid balance of the diet [47]. In fish, amino acid balance in the diet reduced PAC [48,49]. In this study, the PAC was lower for grass carp fed with optimum levels of dietary valine, which was consistent with the study in juvenile Jian carp [8].…”

Feeding frequency on the production viability of production and quantitative descriptors of parasitism in angelfish

“…FOURNIER et al (2003) characterized as hyperphagia the nutritional mechanism used by fish to compensate the nutritional deficiency of a particular diet. DE LA HIGUERA (2001) observed this behavior in trout receiving in their diets insufficient doses of zinc.…”

“…TAVARES-DIAS et al (2009) reports the Monogenea among the most common helminthes parasites in ornamental farmed fish, (PIAZZA et al, 2006) related to the pathogenicity of these parasites and to mechanical damage produced in the gills and skin of the host (GARCIA et al, 2003;PIAZZA et al, 2006). In discus-flags, the nematodes found most often are the genus Capillaria sp., that when in large numbers, can cause apathy, intestinal obstruction, chronic fasting and death (FUJIMOTO et al, 2006).…”

Replacement of Fishmeal with Plant Protein Ingredients in Diets to Atlantic Salmon (Salmo salar) – Effects on Weight Gain and Accretion

“…Therefore one probably should not formulate diets without any fishmeal for Atlantic salmon, but inclusion of low fishmeal (5%) together with the marine ingredients as squid or stick water and FPC seems to work well. It should be noted that Fournier et al (2003) also added FPC in diets fed to turbot without any fishmeal and reported similar voluntary feed intake as compared to fish fed the fishmeal control, but in those experiments the growth was reduced. Experiments with different species fed total or high fishmeal replacement diets are summarised in Table 1, and generally total or high replacement of marine protein with plant proteins reduced the performance.…”

“…This may of course be due to the fact that the diets do not contain a balanced amino acid profile, but even when the amino acid profile is balanced the performance declines as the plant ingredients increase (Fournier et al, 2003(Fournier et al, , 2004. However, when juvenile Senegalese sole were fed diets with very low fishmeal inclusion and balanced in all dietary amino acids and supplemented with taurine, the wet weight gain was equal to fish fed the diet containing high fishmeal inclusion (Silva et al, 2009).…”