An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Scophthalmus maximus; Tenacibaculum maritimum; adverse effects; aquaculture; bacteria; body composition; condition factor; diet; digestive tract; energy content; enteritis; feed conversion; feeds; fish meal; growth performance; health status; hematocrit; hepatosomatic index; juveniles; lipids; pathogens; probiotics; saponins; soybean meal; spleen; turbot; weight gain
Abstract:
... In today's aquaculture, the cost‐intensive and scarce fishmeal is increasingly replaced by plant‐based feedstuff such as soybean meal (SBM). However, SBM contains saponins which can have adverse effects on fish's digestive tract potentially culminating in severe enteritis. In a 60 day feeding trial we studied the use of autochthonous bacteria as probiotics upon SBM supplementation on juvenile turb ...
... The present study demonstrates the effects of varying dietary protein levels on reproductive indices, energy deposition, steroid hormones and oocyte status of hoven’s carp Leptobarbus hoevenii female broodstock. Eighty-one broodstock (1.86 ± 0.02 kg) were randomly distributed into nine tanks representing three dietary treatments; 350 g/kg (P35), 400 g/kg (P40) and 450 g/kg (P45) in triplicates. Fe ...
... Bacillus amyloliquefaciens has attracted attention as a probiotic in aquaculture due to its immunostimulatory activity against pathogenic infection. Xylanases are extensively used in animal feed to degrade plant ingredients, enhancing nutrient utilization and increasing the growth rate of various animals. In the present study, the effects of dietary supplementation with B. amyloliquefaciens and xy ...
fish farms; beta-N-acetylhexosaminidase; feeds; dietary fat; animal morphology; feed deprivation; cod (fish); pepsin; farmed fish; slaughter; marine fish; trypsin; Gadus morhua; chymotrypsin; mariculture; wild animals; feed composition; enzyme activity; fish culture; dietary protein; liver; body composition
Abstract:
... Recently, Atlantic cod farming has attracted great interest in the northern Atlantic region, and a commercial cod aquaculture industry is developing. Farmed Atlantic cod has a body composition different from wild-captured cod. The most prominent differences are the higher condition factor, larger liver and smaller head. The main purpose of the present work was to compare activities of some major h ...
Arthrospira; Morone chrysops; Morone saxatilis; Schizochytrium limacinum; algae; aquariums; body fat; condition factor; crude fat; crude protein; dietary fat; docosahexaenoic acid; experimental diets; fatty acid composition; feed conversion; feeds; fish meal; fish oils; freshwater; hepatosomatic index; heterotrophs; hybrids; juveniles; menhaden; overfeeding; proximate composition; soy protein concentrate; tissues; weight gain
Abstract:
... A 6-week growth trial was conducted to assess the replacement of fishmeal (FM), soy protein concentrate (SPC) and fish oil (FO) by Arthrospira sp. and Schizochytrium limacinum meals in diets for hybrid striped bass (Morone chrysops × M. saxatilis) juveniles of 10.6 ± 0.2 g initial individual weight (±standard deviation). A control diet was formulated with equivalent contributions of FM and SPC to ...
... An 8-week feeding experiment was conducted to evaluate the effects of replacing soybean meal (SBM) with cottonseed meal (CSM) on growth, feed utilization, and hematological index of juvenile hybrid tilapia. Six isonitrogenous diets (containing ~32% crude protein) containing graded levels of cottonseed meal to replace soybean meal protein were fed to triplicate groups of fish. The diets were supple ...
Sander lucioperca; body weight; condition factor; dietary supplements; feed conversion; feeds; fish oils; juveniles; linseed oil; lipid content; peanut oil; protein efficiency ratio; protein value; rearing; specific growth rate; trout; vegetable oil
Abstract:
... The aim of the studies was to determine what effect feeding juvenile pikeperch (W = 59 g fish⁻¹) diets supplemented with vegetable oils had on rearing. The diets used were iso-protein (45%) and iso-energy (21 MJ kg⁻¹ feed) based with a 19% fat content. The fish were reared for four weeks on commercial trout feed (group CF) or on feed supplemented with fish oil (group FO), linseed oil (group LO), o ...
body protein; hulling; feeds; hematocrit; Sebastes schlegelii; fish feeding; marine fish; mariculture; fingerlings; amino acids; feed supplements; body fat; triacylglycerols; blood glucose; rockfish; duration; soybean meal; fish meal; fish culture; weight gain; animal growth; hemoglobin; South Korea
Abstract:
... Two feeding trials were conducted to determine the proper inclusion level of dehulled soybean meal (DHSM) as a fish meal replacer and to get the information on the long-term effects of fish meal (FM) replacement by DHSM in Korean rockfish diets. All the experimental diets were formulated to be isonitrogenous (48% crude protein, CP) and isocaloric (16.0 kJ energy g-1 diet). In the first experiment, ...
fish farms; immunoglobulin M; feeds; lipid composition; hepatosomatic index; gelatin; fish feeding; rapeseed; juveniles; farmed fish; Oreochromis niloticus; leukocytes; body fat; protein sources; feed conversion; genetic improvement; superoxide dismutase; cottonseed; protein efficiency ratio; condition factor; casein; growth performance; lysozyme; weight gain; soybeans; regression analysis; erythrocytes; feed prices
Abstract:
... This study evaluated the effect of dietary protein level on growth performance and haemato-immunological parameters of juvenile genetically improved farm tilapia, Oreochromis niloticus, fed five iso-caloric diets of dietary protein levels 25–45 %, formulated using white fish, casein, gelatine, soybean, cottonseed and rapeseed meals as protein sources. The diets influenced the significant increase ...
Sparus aurata; bream; marine fish; animal growth; body composition; proximate composition; feed conversion; intestines; histology; intestinal microorganisms; species diversity; fish feeding; feeds; feed composition; fish meal; soybean meal; feed supplements; dietary carbohydrate; mannans; oligosaccharides; prebiotics; fish culture; mariculture
Abstract:
... Two experiments were conducted in order to investigate the effect of dietary mannan oligosaccharides (MOS) on gilthead sea bream (Sparus aurata). Experiment I was designed to assess the effect of dietary MOS (0%, 0.2% and 0.4%) on fish fed diets containing fishmeal (FM) as the only protein source. Experiment II was designed to assess the effect of MOS (0% and 0.4%) on fish fed soybean meal (SBM) a ...
Heteropneustes fossilis; body composition; catfish; condition factor; dietary protein; feed conversion; feeds; fingerlings; fish feeding; hemoglobin; hepatosomatic index; histidine; oxygen; protein content; regression analysis; salinity; satiety; stinging; water temperature
Abstract:
... Heteropneustes fossilis is distributed in most of the Southeast Asian countries. It is a promising species for aquaculture due to its high protein and iron content, ability to withstand shifts in salinity and temperature, and survival in oxygen depleted water. In view of the above, this study was undertaken to evaluate the effects of varying levels of dietary l-histidine on growth, protein gain, h ...
I. Biasato; G. Chemello; S. Bellezza Oddon; I. Ferrocino; M.R. Corvaglia; C. Caimi; A. Resconi; A. Paul; M. van Spankeren; M.T. Capucchio; E. Colombino; L. Cocolin; F. Gai; A. Schiavone; L. Gasco
... The effects of including Hermetia illucens (HI) meal in rainbow trout diets have been widely characterized, but data related to its utilization in low-fishmeal (FM) diets are quite scarce. The current research investigated the impact of HI meal inclusion in low-FM diets for rainbow trout by assessing fish growth performance, nutrient digestibility, histomorphological traits of intestine and main o ...
Salmo salar; body weight; condition factor; feeding methods; feeds; high energy diet; industry; lipid content; lipids; muscles; slaughter; smolts
Abstract:
... Two isoenergetic feeding strategies, with emphasis on the grow-out stage (> 1 kg), with dietary high (HP > 1.1) and low protein-to-lipid ratio (LP < 1.0) were tested by using year-old smolt (S1) and under-year-old smolt (S0) Atlantic salmon in two large-scale trials, respectively, and in one small-scale experiment using S1 smolt. This was done to investigate the dietary influence on slaughter yiel ...
... The present study was conducted to evaluate the effects of vitamins E and C and HUFA on the stress response to crowding of rainbow trout and whether the relative levels of these nutrients could influence fish welfare. Two levels of vitamin E (25.6 and 275.6 mg/kg diet), vitamin C (0 and 1000 mg/kg diet), and HUFA (12.5 and 30.5 g/kg diet) were used to formulate five practical diets (- E - HUFA, - ...
Aaron M. Watson; Fabio Casu; Daniel W. Bearden; Justin Yost; Michael R. Denson; T. Gibson Gaylord; Paul Anderson; Paul A. Sandifer; John W. Leffler; Frederic T. Barrows
... A twelve-week feeding trial was conducted to examine potential metabolic and gene expression changes that occur in juvenile red drum, Sciaenops ocellatus, fed diets with increasing soybean meal inclusion. Significant reduction in fish performance characteristics (feed consumption, weight gain, final weight) was observed within the soybean meal based diets as soybean meal level increased (R, linear ...
Lophiosilurus alexandri; biomass; catfish; condition factor; feeds; food conversion; intestines; nauplii; salinity; water quality; weight gain
Abstract:
... The objective of the study was to verify the combination of live and frozen Artemia nauplii, in different salinized water, and its influence in growth and survival of the catfish Lophiosilurus alexandri (Steindachner, 1876) larvae. Larvae were exposed to a combination of two feeds and two different salinities: live Artemia nauplii + 0‰ salinity in the water; live Artemia nauplii + 2‰ salinity in t ...
... Aqua feeds traditionally rely on fishmeal as a protein source, which is costly and unsustainable. A new feed was formulated in the study with Baltic Sea sourced decontaminated fishmeal, Mytilus edulis and Saccharomyces cerevisiae, and given to Arctic char (Salvelinus alpinus) for ten months. The diet-induced changes on metabolic profile in fish plasma, liver, and muscle were studied relative to a ...
Salmo salar; Scenedesmus; aquaculture industry; condition factor; diet; digestibility; energy; feed conversion; feeds; fish; fish meal; hardness; ingredients; microalgae; nutrient retention; omega-3 fatty acids; polyunsaturated fatty acids; protein content; protein efficiency ratio; specific growth rate; tanks; weight gain
Abstract:
... Salmonid feeds can be formulated with high quality microalgae to maintain sustainability in the aquaculture industry. But, the suitability of different microalgae species as potential feed ingredients needs to be documented to enable ready acceptance by the farming industry. The aim of the present study is to investigate the potential of the microalga Scenedesmus sp. as a major ingredient in low f ...
Cyprinus carpio; adipocytes; blood; carp; condition factor; cytoplasm; diet; enterocytes; feed conversion; feeds; food conversion; hepatocytes; hepatopancreas; histology; liver; normal values; proteins; specific growth rate; tanks; triacylglycerols; water flow; weight gain
Abstract:
... The study was carried out to examine morphological and physiological effects of different levels of fat in compound extruded feed for carp. A 90 days experiment was performed in tanks with water flow 0.34 L min⁻¹, stocked each with 29 specimens of carp, average weight 15.4 ± 4.2 g. The fish was fed 3 diets containing 38 % protein and 8, 12 or 16 % of fat (feed L8, L12, and L16, respectively). Body ...
Salmo salar; salmon; mortality; feed intake; animal growth; digestibility; feed conversion; fish culture; fish feeding; feeds; feed composition; proximate composition; amino acid composition; fatty acid composition; fish meal; fish oils; animal source protein; vegetable oil; plant source protein; nutritive value
Abstract:
... The aim of the present study was to combine maximum replacement of fish meal and fish oil with plant ingredients in feed for Atlantic salmon, in order to gain a sound and sustainable net fish protein production. The design implied that all known nutrient requirements should be met. Atlantic salmon smolts with an initial weight of 0.3 kg were fed in triplicate either a fully marine control diet or ...