Aflatoxins are known as a hepatocarcinogen in various animal species, including fish. The present study, by Dr Ahmed Ismail Mohamed Mehrim from Mansoura University, Egypt, was designed to evaluate the ability of some medicinal herbs against aflatoxicosis regar…
To study the effect of dietary inclusion of graded levels (0, 1, 2 %) of Fenugreek seed meal (FSM) or Cresson seeds meal (CSM)on Nile tilapia fry performance, A.M. Abdelhamid and A.A.A. Soliman, Al-Mansoura University, Egypt conducted an indoor feeding trial w…
Hydroferrate fluid, MRN-100, an iron-based compound derived from bivalent and trivalent ferrates, is a potent antioxidant compound. Mamdooh GHONEUM, Charles Drew University of Medicine and Science, US, et al examined the protective effect of MRN-100 against ga…
F.F. Khalil, Ahmed Ismail Mehrim and Montaha E.M. Hassan, Al-Mansoura University, Egypt, have evaluated the effects of graded levels of a new commercial probiotic, Hydroyeast Aquaculture, on both sexes of adult Nile tilapia. The probiotic was found to be usefu…
In an indoor feeding trial of Nile tilapia fish fry, A.M. Abdelhamid, Al-Mansourah University, Egypt and A.A.A. Soliman, National Institute of Oceanography and Fisheries, Egypt found that guava tree leaves meal (GTLM) and camphor tree leaves meal (CTLM) both h…
For a variety of reasons, many humans choose to adopt children. More surprisingly, adoption is fairly widespread in the animal kingdom, even though it would seem to counteract the basic premise of Darwins theory of evolution, which suggests that animals should…
Although antibiotic growth promoters in the diets of fish may promote growth and improve feed conversion and survival rates, public concern over cross-resistance to humans led to a ban on the use of such substances in the EU. Research has thus turned to other …
In a study, tilapia were fed fish oil or vegetable oil based diets for five months, then switched to a fish oil finishing diet for three months. Results showed growth and feeding efficiencies were not significantly compromised, writes Nicholas Romano et al, Un…
USDA, along with the American Soybean Association (ASA) and the Fisheries Development Board (FDB), has funded a three year aquaculture project FEEDing Pakistan with an initiative to improve the livelihood of Pakistan farmers and consumers through increased aqu…
The use of alternative lipids in tilapia feeds is becoming increasingly commonplace due to the rising cost of fish oil (FO). However, since this practice will reduce the content of heath beneficial long chain polyunsaturated fatty acids (LC-PUFA) in tilapia fi…
Jun Qiang, Chinese Academy of Fishery Sciences, and Hong Yanga look at the interacting effects of water temperature and dietary protein levels on hematological parameters in Nile tilapia juveniles and mortality under Streptococcus iniae infection.
Neil Wendover, MSD Animal Health, Singapore, uses field experiences from Asia to look at the implications of vaccine development for streptococcus in tilapia. Taken from the MSD Animal Health 'Bacterial Disease in Warmwater Fish: New Strategies for Sustainable…
Mark Gaikowski, Upper Midwest Environmental Sciences Center, US, determines the depletion of florfenicol (FFC) in water and florfenicol amine (FFA), a marker for FFC residue, from the fillet of market-weight tilapia in a recirculating aquaculture system (rAS) …
Rogrio Salvador, North Paran State University, looks at the impact of streptococcosis on tilapia in Brazil and efficacy of AquaVac Strep Sa for managing the disease under controlled conditions. Taken from the MSD Animal Health 'Bacterial Disease in Warmwater F…
Tilapia is losing ground in the US market whilst catfish supply is expected to increase during 2012 but with a stronger focus on quality and safety, according to the FAO Global Food Outloook.
Low market prices challenge the Chinese tilapia industry as it seeks to become sustainable, writes Dr Liu Liping and Dr Zhang Zongfen from Shanghai Ocean University, and Dr Francis Murray and Dr David Little from the University of Stirling. Taken from the Glob…
Tilapia breeding is profitable only if it is solely focused on male populations. Hormonal inversion methods currently used to produce these populations have, however, many drawbacks. CIRAD has been investigating a genetic approach for several years and just di…
An ambitious project aims to train over 800 smallholders a year in sustainable aquaculture, with the long term aim of reducing poverty in the South Rachounyo District of Homa Bay County of Kenya. Charlotte Johnston, TheFishSite editor reports.
Researchers from the Department of Environmental Management at the Ho Chi Minh City University of Technology, Viet Nam, look at methods to improve tilapia cage farming in Tien Giang, Viet Nam.
KENYA - Arror River integrated multi-purpose project, which is earmarked to kick-off in earnest in Elgeyo Marakwet County, is an ambitious project which is geared towards transforming Kerio Valley region to a food basket once it is implemented and completed.
Based at Lake Baringo, Kenya, Omega Farms is in its early days. Charlotte Johnston, TheFishSite Editor speaks to Director Mark Archer, about the Omega Farm project and increasing the supply of tilapia fingerlings in Kenya.
Researchers from Kentucky State University and the Aquaculture Research Centre look at the use of soybean and yeast meal as an alternative feed for tilapia.
Commercial Malaysian aquaculture began in the 1980s. In the last five years the aquaculture sector has recorded an annual growth rate of about 10 per cent.
Much of Brazils expanding tilapia aquaculture takes place in floating cages with sturdy frames and nets made from plastic-coated steel or polypropylene. This study by Alberto J. P. Nunes, from the Instituto de Cincias do Mar Labomar, looks at tilpia cage farm …
The global aquaculture industry currently accounts for over 45 per cent of all seafood consumed. That figure has been projected to increase to 75 per cent over the next 20 years. Are probiotics necessary to achieve this? Abdel Hamid Eid and K Mohamed from Suaz…
Intensified aquaculture can lead to the emergence of disease in virtually all fish and shellfish species, according to Vaughn E. Ostland, PhD, Intrinsic LifeSciences, La Jolla, California, USA.
Dr Gina Conroy, an aquaculture adviser and consultant to a number of large organisations, looks at the prevalence of streptococcus species in Latin America and their pathological manifestations.
The latest figures released by the US Department of Agriculture, Economic Research Service show statistics on domestically grown catfish and US imports of salmon, tilapia and shrimp. Summarised by TheFishSite junior editor, Charlotte Johnston.
To improve our understanding of streptococcal disease in tilapia, Intervet/Schering-Plough Animal Health, Brian Sheehan performed extensive epidemiological studies in the major tilapia-producing countries of Asia and Latin America.
With increasing global consumption of fish and increased demand in the developing world, Neil Wendover, Technical Services Manager for Intervet/ Schering-Plough Animal Health, looks at tilapia health management.
Once the sole domain of wealthy businessmen and fish experts, aquaculture is becoming increasingly attractive as a domestic amateur hobby. Adam Anson, reporting for TheFishSite, finds out what it takes to get started.
Commercial farming of tilapia (Tilapia niloticus) in England and Wales has expanded significantly over the last few years, but what threat does an emerging disease now pose, asks Keith Jeffery, Cefas Weymouth Laboratory.
Tilapia has become synonymous with good quality, cheap and sustainable seafood. It is no surprise then that its global demand rises each year, but can tilapia keep up with the pace as this demand gets evermore specific, asks Adam Anson, reporting for TheFishSi…
A new certification programme for aquaculture operations is being established by the World Wildlife Fund, writes TheFishSite senior editor, Chris Harris.
Early this year it was reported that Viet Nam had become the world's eighth largest seafood exporter, but behind these tidy headlines lies a mish-mash of inter-related management and environmental issues. In these topsy-turvy financial times will the Vietnames…
Continuous advancements in the science of aquaculture has enabled farmers to produce ever greater varieties of fish. But whilst this allows industries to meet consumer demands, an unquenchable desire for large carnivorous fish is not sustainable, writes Adam A…
Disease is one of the most important limiting factors in aquaculture. Optimal husbandry and general management - including biosecurity, nutrition, genetics, system management and water quality - are critical for maximizing aquatic animal health, writes Roy P. …
Increasing consumer awareness to unsustainable aquaculture practices have made the prospect of organic aquaculture both environmentally and economically fruitful, but strict standards make this goal difficult to achieve. As the US considers by-passing this obs…
