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.
At WorldFish, we work with an extensive network of donors and partners to create change for the millions who depend on fish in the developing world. Partnerships are essential to bring technologies and innovations to scale and achieve development impact. By 2025, WorldFish, together with our donors and partners, will improve the lives of 28 million people.
The Egyptian aquaculture industry provides more than 100,000 full-time or part-time jobs and produces the country’s least-expensive farmed animal protein. Thus, aquaculture plays an important role in both sustaining livelihoods and improving the diet quality and nutritional health of Egyptians, including a significant proportion of the 25.5% who are resource-poor. Recognizing this dual role, WorldFish has promoted sustainable growth in Egyptian aquaculture for more than 20 years.
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.
This report presents the findings of a mission to critically review the institutional, policy and regulatory framework for sustainable development of the Egyptian aquaculture sector. The study was undertaken by an International Expert on Aquaculture Policy, and a National Expert on Institutions, on behalf of the Project “Improving Employment and Income through the Development of Egypt’s Aquaculture Sector“, implemented by WorldFish and CARE, and funded by the Swiss Agency for Development and Cooperation(SDC).
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.
Egypt’s aquaculture sector provides full-time employment for more than 140,000 people and is a critical source of fish that provides Egyptians with up to 38% of their animal protein intake.
Despite being valued at US$ 1.5 billion, the sector faces various challenges. Poor and variable water quality, as well as restrictions on water and land use, limit the growth of aquaculture. Rising feed costs and the increased poverty levels of consumers mean fish farmers are feeling the pressure of higher production costs and lack of price flexibility.
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.