In the developing world, more than 1 billion people depend on fish for most of their animal protein, and another 1 billion people depend on livestock. Poor people, especially women and children, typically eat very little meat, milk and fish. This contributes to nutrient deficiencies and poor physical and cognitive development for children and poor health and livelihood outcomes for adults.
Water quality variables were monitored during 3.5 years of research on pig-fish, duck-fish and chicken-fish systems. Early morning dissolved oxygen levels were often below 0.5 mg/1. Total ammonia levels were highest in chicken-fish systems with maximum levels exceeding 6 mg1. Water quality sampling designs which measure the fluctuations in water quality variables are discussed. Species selection, control of manure loads, addition of new water, and aeration are presented as means to manage water quality in livestock-fish systems.
This publication is based on materials covered and outputs generated during the Workshop on Risk Assessment Methodologies and Tools for Aquaculture in Sub-Saharan Africa, which was jointly held by WorldFish and FAO in Siavonga, Zambia on 28 June - 2 July 2010. The workshop was delivered as a training exercise to 17 participants from seven sub-Saharan countries and was designed to highlight current methodologies and tools available for environmental risk analysis in aquaculture development.
The CGIAR Research Program on Livestock and Fish started in January 2012. It aims to increase the productivity of small-scale livestock and fish systems in sustainable ways, making meat, milk and fish more available and affordable to poor consumers across the developing world. Genetics is one of the three technological components of the Livestock and Fish research program. A genetics team meeting was held on 30-31 July 2012, at the International Livestock Research Institute (ILRI), Nairobi.
Macrobrachiurn rosenbergii is one of the widely cultured freshwater prawn species globally. India was the third largest producer of this species in 2007 and its aquaculture production rose to 43,000 metric tons (t) in 2005 froin less than 500 t in 1995. However, since then production has been declining and in 2008-09 it was 12,856 t, a reduction of more than 70% compared to 2005. There are several contributing factors to this decline, such as slow growth rate, poor survival, disease outbreaks, increase in cost of production, and availability of low risk alternative fish species.
As a member of the Consultative Group for International Agricultural Research (CGIAR). The WorldFish Center will partner with several other CGIAR Centers in the CGIAR Research Program 3.7 "More meat, milk and fish by and for the poor". The focus of research for the fish components of the Program are on technology platform and integrated value chain research.
Exposed to the intense Egyptian sun, a woman sits by the side of a dirt road selling freshly harvested tilapia from a local fish farm. Tired after rising at dawn to buy her produce, she is approached by a man who demands that she pay him a fee for her roadside stall or he’ll force her to sell elsewhere. She protests, but with no work license or union support there is little she can do. Their exchange escalates and the man upturns her icebox in anger, spilling her fish across the road.
Forming a vast grid across the flat, dry countryside, Egypt’s aquaculture ponds sit side-by-side in designated fish farming zones.
Employing more than 140,000 people full time, the industry has boomed over the last two decades and continues to grow at a rapid pace, attracting new fish farmers like Abdel-Wahab Abdel-Hamid Mahmoud who left his job in the poultry industry after recognizing the market demand for farmed fish.