This study by Ahmed Mohamed Nasr-Allah et al was carried out in order to understand the technical and economic characteristics of different Egyptian Nile tilapia (Oreochromis niloticus) hatchery systems. Hatchery operators at fifty tilapia hatcheries in four g…
This study by Ahmed Mohamed Nasr-Allah et al, WorldFish, Egypt, was carried out in order to understand the technical and economic characteristics of different Egyptian Nile tilapia (Oreochromis niloticus) hatchery systems.
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.
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, Israel …
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…
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 a…
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.
In part three of three, A.M. Abdelhamid, Mansoura University, Egypt, aims to investigate the effect of dietary graded levels of Aqua Superzyme, Garlen Allicin, and Diamond V (Original XPC) on the chemical composition and histology of all-males mono-sex Nile ti…
In part two of three, A.M. Abdelhamid, Mansoura University, Egypt, aims to investigate the effect of dietary graded levels of Aqua Superzyme, Garlen Allicin, and Diamond V (Original XPC) on feed utilization by Nile tilapia fish for 16 weeks.
In part one of three, A.M. Abdelhamid, Mansoura University, Egypt, aims to investigate the effect of dietary graded levels of Aqua Superzyme, Garlen Allicin, and Diamond V (Original XPC) on the growth performance and economic production of Nile tilapia fish (1…
Tilapia production is increasing around the world. Here Moises Diaz Barboza et al, National University of Trujillo, Peru, investigated the results of mechanising the farming of tilapia in ponds in Palo Blanco (Cascas, La Libertad, Peru).
Tilapia is a popular food fish all over the world and in Egypt it has been raised as food for human consumption for a long time. A field study was conducted on brood stock Nile tilapia Oreochromis niloticus to improve their reproductive performance by some com…
This article provides a quick guide to breeding males for tilapia farming and best practice for hatchery, grow out and slaughter, writes Lucy Towers, editor of TheFishSite.
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…
