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PmVRP15, a Novel Viral Responsive Protein from the Black Tiger Shrimp Promoted White Spot Syndrome Virus Replication
White spot syndrome, caused by the white spot syndrome virus (WSSV), is the most serious viral disease in penaeid shrimps causing 100 per cent mortality post infection. In the last two decades outbreaks of this virus in commercial shrimp aquaculture farms...
Alternative Mating Strategies in Male Morphotypes of the Prawn Macrobrachiumidellaidella
Soundarapandian. P and Varadharajan. D, Annamalai University, India, evaluate the relative reproductive potential of male morphotypes of M. idellaidella by examining their mating strategy is close quarter in an aquarium. ...
Determining Ovarian Maturity in Farmed Sturgeon for Caviar Production Using Fourier Transform Infrared Spectroscopy
Ovarian maturity of white sturgeon farmed in California (Sterling Caviar, LLC) (N=400) and Idaho (Fish Breeders and Blind Canyon Aqua Ranch) (N=143) was determined by correlating blood plasma spectral features with oocyte polarization index, an index...
Pawpaw Seeds Powder in Nile Tilapia Diets: 2 Liver Status, Sexual Hormones and Histological Structure of the Gonads
Tilapia species constitute a major and important item in Egyptian fish farming. It displays many favourable attributes as culture species, on the basis of its general hardness, resistance to diseases, high yield potential and ability to grow on a wide...
Quantifying Barotrauma Risk to Juvenile Fish During Hydro-turbine Passage
Marshall C. Richmond et al, Pacific Northwest National Laboratory, US, introduce a method for hydro turbine biological performance assessment (BioPA) to bridge the gap between field and laboratory studies on fish injury and turbine engineering design....
Post-Surgical Analgesia in Rainbow Trout: Is Reduced Cardioventilatory Activity a Sign of Improved Animal Welfare or the Adverse Effects of an Opioid Drug?
This study by Albin Gräns, Erik Sandblom, Anders Kiessling and Michael Axelsson, University of Gothenburg, Sweden, assessed the effects of an opioid drug, buprenorphine (0.05 mg/kg IM), on resting ventilation and heart rates during 7 days of postsurgical...
Effect of Different Sources and Levels of some Dietary Biological Additives on: IV- Immunity and Haematology of Nile Tilapia Fish
This study by A. M. Abdelhamid et al, Al-Mansourah University, Egypt, aimed to investigate the effect of dietary graded levels of three pre-and probiotics on the immunity and haematology of all-males mono-sex Nile tilapia fish. ...
Tissue-Specific Fatty Acids Response to Different Diets in Common Carp
Fish depend on dietary fatty acids (FA) to support their physiological condition and health. Exploring the FA distribution in common carp (Cyprinus carpio), one of the world's most consumed freshwater fish, is important to understand how and where FA...
Hypoxia and Acidification Have Additive and Synergistic Negative Effects on the Growth, Survival, and Metamorphosis of Early Life Stage Bivalves
Low oxygen zones in coastal and open ocean ecosystems have expanded in recent decades, a trend that will accelerate with climatic warming. Christopher J. Gobler et al, Stony Brook University, US, experimentally assessed the consequences of hypoxic and...
Substitution of Dietary Fish Oil with Plant Oils is Associated with Shortened Mid Intestinal Folds in Atlantic Salmon
Torfinn Moldal et al, Norwegian Veterinary Institute, investigated the intestinal health in Atlantic salmon fed with different vegetable oils as partial substitutes of fish oil in the diet....
Fishmeal-Free Feeds for Hybrid Tilapia
A series of experiments showed that fishmeal is not an essential ingredient in tilapia feeds and that plant protein-based diets can yield results similar to those obtained with diets containing 10 per cent fishmeal, write Nathan Gur and Guy Rubinstein,...
Potential for Understanding Anti-bacterial Resistance
Biologists could gain a deeper understanding about how species have evolved – and even find ways to address antibiotic resistance – using tools that were developed recently at Stockholm's KTH Royal Institute of Technology....
Fisheries in Transition: Food and Nutrition Security Implications for the Global South
Fisheries and fish supply are undergoing a fundamental structural transition, as indicated by a ten country analysis. Aquaculture now provides around half the fish for direct human consumption and is set to grow further, but capture fisheries continue...
Characterization of Intestinal Bacteria in Wild and Domesticated Adult Black Tiger Shrimp
The black tiger shrimp is a marine crustacean of economic importance in the world market. To ensure sustainability of the shrimp industry, production capacity and disease outbreak prevention must be improved. This work by Wanilada Rungrassame et al,...
Effect of Pawpaw Seeds Powder in Nile Tilapia Diet: 1 Growth Performance, Survival, Feed Utilization, Carcass Composition of Fry and Fingerlings
The objective of the present study was to determine the effects of dietary inclusion of different levels of pawpaw seeds powder (PSP) at different periods on the growth performance, survival rate, feed utilization and carcass composition of fry and fingerlings...
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