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Epinephelus; fish meal; meat meal; blood meal; fish feeding; feeds; ingredients; biomass; liveweight gain; mortality; feed conversion; body composition
Abstract:
... A feeding trial was conducted to evaluate the potential of replacing fish meal with processed animal by-product meals, meat meal and blood meal (4:1 ratio), in practical diets for juvenile grouper (Epinephelus coioides). Eight isonitrogenous diets were formulated to contain 45% protein and 12% lipid. Fish meal was replaced by 0%, 10%, 20%, 30%, 40%, 60%, 80%, and 100% of meat meal and blood meal ( ...
ammonia; orthophosphates; grazing; freshwater fish; ingestion; sediments; dry matter content; Oreochromis niloticus; freshwater aquaculture; water temperature; phytoplankton; stocking rate; sodium nitrate; water quality; feed conversion; periphyton; hydrochemistry; biomass; fish culture; animal growth; superphosphate; body composition; chlorophyll
Abstract:
... The objectives of this study were to determine how periphyton and phytoplankton biomass vary with grazing pressure by tilapia Oreochromis niloticus, to evaluate the growth performance of fish when substrate is introduced and to calculate the efficiency of nitrogen utilization in substrate and non-substrate systems. Ten circular 1000-L plastic tanks were filled with 15 cm of loamy soil bottom and w ...
fish culture; Labeo rohita; animal growth; soil chemical properties; plankton; zinc sulfate; water quality; zinc; fingerlings; freshwater aquaculture; body composition; physicochemical properties; freshwater fish; chlorophyll; biomass; fish ponds
Abstract:
... The role of zinc in biological production at three levels of zinc treatments was investigated. The three treatment levels were 10, 20 and 30 kg ZnSO4/ha with each treatment using three different soil bases containing 0.45, 0.75 and 1.0 ppm diethylenetriamine pentaacetic acid (DTPA)-extractable zinc. All treatments showed an increase in both plankton and primary productivity (p<0.05) over control ( ...
... The present study investigated the effect of varying dietary protein-to-lipid ratios (P/L) on growth performance and body composition of pike perch (Sander lucioperca) fingerlings with an initial body weight of 1.35-1.40 g. Triplicate groups were reared during 56 days in recirculation systems and fed six experimental diets containing three dietary levels of lipid (90, 130, 170 g kg⁻¹ of dry matter ...
digestibility; fish feeding; feed meals; cowpeas; Oreochromis niloticus; tilapia (common name); crude protein; plant source protein; stocking rate; feed conversion; body weight; feed composition; biomass; fish meal; fish culture; lipid content; weight gain; animal growth; experimental diets; Vigna unguiculata subsp. unguiculata; body composition; ash content
Abstract:
... The main objectives of this study were to evaluate the effect of partial and total replacement of fish meal (FM) protein by cow pea seed meal (CPSM) protein in practical diets on growth performance, feed utilization, and body composition of Nile tilapia, Oreochromis niloticus (L.). Fish of an average initial weight of 4.6 ± 0.2 g were stocked in 15 glass aquariums (80 L each) at a rate of 15 fish ...
Leuctra; acid tolerance; acidity; bioenergy; biomass; body composition; community structure; energy flow; environmental impact; food quality; food webs; laboratory rearing; leaves; lipid content; macroinvertebrates; pH; protein content; streams; surveys; survival rate; tissues; England
Abstract:
... 1. Low pH inhibits microbial conditioning of leaf-litter, which forms the principal energy input to many headwater streams. This reduces food quality and availability for the shredder assemblage, thereby creating a potential bottleneck in the flux of energy and biomass through acidified food webs. 2. We explored the consequences of acidity on the well-characterised community of Broadstone Stream i ...
animal growth; biomass; body composition; ecological footprint; energy metabolism; feed requirements; fish; fish culture; fish nutrition; growth models; indeterminate growth; mechanistic models; nutrient utilization; product quality
Abstract:
... Mathematical models in fish nutrition have proven indispensable in estimating growth and feed requirements. Nowadays, reducing the environmental footprint and improving product quality of fish culture operations are of increasing interest. This review starts by examining simple models applied to describe/predict fish growth profiles and progresses towards more comprehensive concepts based on bioen ...
Tinca tinca; biomass; body composition; diet; essential amino acids; feed conversion; feed intake; fish; fish feeding; fish meal; satiety; soybean meal; soybeans
Abstract:
... The suitability of defatted soybean meal as a substitute for fishmeal was assessed in juvenile (25 g, average) tench, Tinca tinca, by feeding them diets containing 25 (S25), 37.5 (S37.5) and 50% (S50) soybean meal for 150 days. Soybean meal inclusion increased the relationship between essential and non-essential amino acids. Fish were hand-fed to apparent satiation; the feed intake ratio was not d ...
... Many marine organisms have gelatinous bodies, but the trait is most common in the medusae (phylum Cnidaria), ctenophores (phylum Ctenophora), and the pelagic tunicates (phylum Chordata, class Thaliacea). Although there are taxonomic and trophic differences between the thaliaceans and the other two closely related phyla, the collective term “jellyfish” has been used within the framework of this art ...
... Six feeding groups of 60 early juveniles (0.6 g) of a rheophilic cyprinid barbel Barbus barbus were reared in triplicate in 18 glass aquaria. Fish fed a commercial formulated dry diet Aller Futura were compared with those on natural foodâcommercially available frozen Chironomidae larvae at 17, 21 and 25°C. Daily food rations were adjusted according to fish biomass, differences in hydration be ...
... The effects of replacing a digestible energy source from fat (fish oil) with carbohydrate (wheat starch) on performance, glycogenesis and de novo lipogenesis was examined in triplicate groups of juvenile gilthead sea bream (Sparus aurata), fed four extruded experimental diets. In order to trace the metabolic fate of dietary starch, 0·7 % wheat starch was replaced with isotope-labelled starch (>98 ...
Scenedesmus; Sparus aurata; adverse effects; alkaline phosphatase; animal growth; biomass; body composition; body weight; diet; enzyme activity; fish; fish feeds; fish meal; histology; ingredients; intestinal mucosa; juveniles; leucyl aminopeptidase; microalgae; microvilli; nutrient utilization; proximate composition; trypsin
Abstract:
... The rising costs of fishmeal worldwide promote great research effort aimed to find alternative and renewable ingredients for aquafeeds. In the last years considerable attention has been paid to the use of algae as a potential ingredient for fish feeds. The objective of this work was to evaluate the effects of the microalgae Scenedesmus almeriensis incorporated to diets intended to feed sea bream ( ...
Oreochromis niloticus; animal production; animals; aquatic environment; biomass; body composition; cages; chemical analysis; diet; digestibility; feed conversion; feed intake; feeds; fish culture; meta-analysis; nitrogen; organic matter; phosphorus; planning; pollution load; prediction; rearing; tropics; wastes; Brazil
Abstract:
... We sought to estimate the nutrient load in the waste released into aquatic environments based on the feeding of Nile tilapia (Oreochromis niloticus, L.) reared in cages that were installed in artificial reservoirs. For the calculation, an analysis of the chemical composition of commercial feeds intended for this species in their various stages of production was conducted (N = 130). We combined thi ...
adults; aquatic insects; biodiversity; biomass; body composition; body size; community structure; food webs; grasslands; humans; land cover; land use; landscapes; management systems; rivers; urban development; Ohio
Abstract:
... We measured bidirectional arthropod fluxes at 12 river reaches distributed across an urban‐rural gradient of riparian land use and land cover in the Scioto River system of Ohio (U.S.A.). For the terrestrial‐to‐aquatic arthropod flux (i.e. inputs of terrestrial arthropods to the river from the land), urban development was positively related to density of inputs but negatively related to biomass, pa ...
Haliotis discus; Nannochloropsis; Saccharina japonica; abalone; arginine; biomass; body composition; carcass composition; casein; containers; essential amino acids; experimental diets; fish meal; growth performance; isoleucine; juveniles; leucine; microalgae; phenylalanine; specific growth rate; threonine; valine; water content; weight gain
Abstract:
... The effects of dietary substitution of fishmeal with the combined dry Nannochloropsis oceanica (NO) biomass residue and casein on growth performance and carcass composition of juvenile abalone was determined. One thousand two hundred and sixty juvenile abalone were randomly distributed into the 18 L plastic rectangular containers. Five experimental diets in triplicate were prepared. The 28% fishme ...
... A feeding trial to study the effect of addition of prebiotic fructooligosaccharide (FOS) on feeds for juvenile Asian seabass (Lates calcarifer) (12.2 ± 0.4 g) was carried out. Five isonitrogenous and isocaloric experimental diets were formulated that contained 400 g kg⁻¹ protein and 90 g kg⁻¹ lipid. The FOS was supplemented at 2.5, 5, 7.5 and 10 g kg⁻¹ in the diet of L. calcarifer with a control t ...
Ictiobus niger; biomass; body composition; crude protein; dietary protein; fish; indigenous species; juveniles; rearing; tanks; watersheds; weight gain; Mississippi River
Abstract:
... Populations of Black Buffalo Ictiobus niger, a broadly-distributed catostomid species native to the Mississippi River basin, are in decline, similar to many other catostomids. Artificial propagation and culture are frequently a part of native species recovery plans, and developing formulated diets is a critical component of these plans. However, studies establishing protein requirements for catost ...
Amphora; Chlorella; Cylindrotheca; Morone saxatilis; Phaeodactylum tricornutum; aquaculture feeds; biomass; body composition; crude protein; digestible energy; feed conversion; fish meal; fish oils; growth performance; hybrids; juveniles; lipids; menhaden; microalgae; mixed culture; mortality; proximate composition; soy protein concentrate; weight gain
Abstract:
... Processed microalgae concentrates recently have been considered potentially viable alternatives to partially replace fishmeal (FM) and fish oil in aquafeeds. Two feeding trials were conducted to evaluate incremental replacement of FM and soy protein concentrate (SPC) with different types of microalgae in the diet of hybrid striped bass. Microalgae evaluated in feeding trial 1 included dried produc ...
Nannochloropsis; Scenedesmus; Solea senegalensis; absorption; alpha-amylase; biomass; body composition; body weight; diet; enzyme activity; freeze drying; growth performance; ingredients; intestinal mucosa; juveniles; leucyl aminopeptidase; lipid content; microalgae; microvilli; muscles; nutrient utilization; protein content; proteinases; proteolysis; sole; Southern European region
Abstract:
... Senegalese sole is one of the most promising fish species cultivated in the Southern European countries. This study was aimed at assessing the effects of microalgae biomass added to diets for Senegalese sole juveniles on fish growing and condition status. Three isoproteic (52%) and isolipidic (10%) were formulated containing 15% Tisochrysis lutea (TISO), Nannochloropsis gaditana (NAN), or Scenedes ...
Edna S. Costa; Carolina N. França; Francisco A. H. Fonseca; Juliana T. Kato; Henrique T. Bianco; Thiago T. Freitas; Henrique A. R. Fonseca; Antonio Martins Figueiredo Neto; Maria Cristina Izar
amylases; bananas; biomass; blood glucose; body composition; body mass index; body weight; diastolic blood pressure; fasting; food intake; gastric emptying; glucose; high density lipoprotein cholesterol; hip circumference; homeostasis; hydrolysis; insulin resistance; models; noninsulin-dependent diabetes mellitus; nutritional support; patients; randomized clinical trials; resistant starch; risk; waist circumference
Abstract:
... Diabetes mellitus is a global epidemic, characterised as a heterogeneous group of metabolic disorders associated with high risk of CVD. Green banana biomass, which is composed of resistant starches (RS) and cannot be hydrolysed by amylases, delays gastric emptying and modulates insulin sensitivity, thus contributing to improve metabolic disorders. The aim of the present study was to investigate th ...