A growth trial was conducted to evaluate the effects of dietary lipid levels on deposition and metabolism subadult triploid rainbow trout. Diets with low (148 g kg-1 diet), moderate (228 high (294 diet) crude contents were fed quadruplicated groups fish ( 233 g ± 0.2 ) fo...

The present study examines the expression of growth-regulating genes (gh, prl, smtl and igf1b), the estrogen receptors (esr1 and esr2a) and aromatase (cyp19a1a) in developing yellow perch. To gain an initial understanding into the endocrine control of growth preceding and involved with sexual size dimorphism (SSD), where females have been reported to grow faster and larger than males, young of ...

A feeding trial of three dietary protein (DP) (25, 35 and 45%) and four dietary lipid (DL) levels (3, 6, 9 and 12%) with different dietary energy to protein (E/P) ratios (from 5.93 to 13.84 kcal/g protein) was conducted to investigate the proper dietary E/P ratio for juvenile grass carp. After acclimation of 2 weeks by a lipid-free diet, fish were reared for 10 weeks in a water recirculation sy...

The microcystin-producing cyanobacterium Planktothrix is one of the most widespread genera amongst toxin producing cyanobacteria in European lakes. In particular, the metalimnic blooms of Planktothrix rubescens have been associated with growing problems in the professional freshwater fishery as a decrease in yearly yields in the important coregonids fishery often coincides with the appearance o...

Traditionally, fish meal and fish oil have been used as main sources of proteins and energy in the commercial fish feeds. Nowadays these ingredients have been partially substituted with materials of plant-origin (e.g. maize, wheat and soy) due to their more inexpensive price and easier availability. If contaminated plant material is used in the making of fish feed, the finished product can cont...

A 70-day experiment was conducted to investigate the effects of mulberry leaf extract (MLE) on growth, proximate compositions, antioxidant and plasma biochemical parameters, indices non-specific immunity largemouth bass ( Micropterus salmoides ) fed a high-starch diet. Two hundred eighty (initial body weight, 68.00 ± 0.19 g) were randomly seven diets: basal-starch diet (BSD; 8.88% starch), (HSD...

An 8-week feeding trial was conducted to evaluate the effects of dietary lipid sources on growth performance, fatty acid composition, rate-limiting enzyme activities and gene expression related to lipid metabolism in large yellow croaker (Larmichthys crocea). Five iso-nitrogenous and iso-lipidic experimental diets were formulated to contain different lipid sources, such as fish oil (FO), soybea...

The aim of the study was to investigate whether negative effects dietary glycinin are linked structural integrity damage, apoptosis promotion and microbiota alteration in intestine orange-spotted grouper (Epinephelus coioides). basal diet (FM diet) formulated contain 48% protein 11% lipid. Fish meal replaced by soybean (SBM) FM diets prepare SBM diet. Two experimental were prepared, containing ...

A study was undertaken to evaluate the effects of supplementing commercial feeds with Carophyll® Pink, a gelatin-encapsuled astaxanthin, on growth parameters, lipid composition, pigment concentration and skin color size red porgy. Three isonitrogenous diets were formulated containing different levels astaxantin: Ctrl diet (no added), A50 (with 50 mg/kg astaxanthin) A80 80 mg/ kg astaxanthin). F...

A 56 day feeding trial was conducted to examine the effects of different levels dietary histamine on growth performance, immune response, and intestinal health grouper ( Epinephelus coioides ). Seven isonitrogenous (46%), isolipidic (10%) diets were prepared with supplement 0 (T0), 0.05% (T1), 0.1% (T2), 0.15% (T3), 0.2% (T4), 0.25% (T5), 0.3% (T6), respectively. The results showed that supplem...