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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...
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....
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...
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. ...
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....
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....
Tilapia Could Enhance Water Conditions, Help Control EMS in Shrimp Ponds
Anecdotal reports have indicated polyculture and biofloc systems can reduce outbreaks of diseases at shrimp farms. A laboratory study at the University of Arizona examined the effects of tilapia in controlling acute hepatopancreatic necrosis (AHPN) infection...
Effect of Pawpaw Seeds Powder in Nile Tilapia Diet
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...
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 Sangrovit WS on Growth, Survival and Prevention of Vibrio harveyi in Pacific White Shrimp
This study by Tirawat Rairat, Niti Chuchirdl and Chalor Limsuwanl, Kasetsart University, Thailand, revealed the benefit of Sangrovit WS, a natural plant feed additive, in anti-inflamatory and antimicrobial activities in shrimp and its effectiveness in...
Harmful Effects on Toxin Dinoflagellates in Shrimp Culture Ponds
Phytoplankton are the key food item in both aquaculture and mariculture. Both systems are utilizing phytoplankton as food for the animals being farmed. In aquaculture, phytoplankton must be obtained and developed artificially through various adapted procedures,...
Dietary Potassium Diformate (KDF) Improves Performance of Milkfish from Mariculture in the Philippines
The milkfish is the most important cultured fish species in the Philippines. In 2011, almost 373,000 t milkfish were produced there (FAO, 2013), around 42% of its entire world production, write Christian Lückstädt, Kai-Jens Kühlmann and Karsten Schroeder,...
Atlantic Cod Actively Avoid CO2 and Predator Odour, Even After Long-term CO2 Exposure
The rising atmospheric CO2 level is continuously driving the dissolution of more CO2 into the oceans, and some emission scenarios project that the surface waters may reach 1000 ?atm by the end of the century, write Fredrik Jutfelt and Maria Hedgärde,...
Suspended Solids Effects In Shrimp Biofloc Systems
The use of biofloc systems for shrimp culture requires monitoring of water quality parameters, particularly suspended solids levels, writes Carlos Gaona et al, Universidade Federal do Rio Grande. Taken from the Global Aquaculture Advocate, a Global Aquaculture...
Evaluation of Growth Performance, Feed Utilization Efficiency and Survival Rate of Juvenile Nile Tilapia, Reared at Different Water Temperature
Kassaye Balkew Workagegn, Hawassa University, Ethiopia, conducted this study to investigate the growth performance, feed utilization efficiency and survival rate of juvenile Oreochromis niloticus reared in aquaria at different water temperature....
 
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