Poor culture conditions in low input ponds make fish highly susceptible to infectious pathogens which lead to diseases and mortalities yet the effects of probiotics on immunity, gut microbiota and microbiological quality of fish in low input ponds are unknown. Nile tilapia, Oreochromis niloticus fingerlings (40 g) were randomly stocked at 50 fish m-3 in 1.25 m3 cages in low input ponds. The fish were fed on diets supplemented with either Saccharomyces cerevisiae (1 × 1010 CFU g-1) or Bacillus subtilis (1 × 109 CFU g-1) at six levels: Diet 0 (No probiotic); S.
There is growing interest to understand the dietary P:E requirements for the supplemental feed used in tilapia pond culture where natural food contributes to production. In an on-farm trial, we tested the effect of lowering dietary P:E ratio on fish performance, pond nutrient utilization and economic benefit under two stocking densities and feeding levels.
The nutritious pond concept is a novel approach that enables the pond itself to contribute significantly to the diet of the farmed fish/shrimp. Our research shows that feeding the pond by balancing the carbon-to-nitrogen ratio can increase the contribution of naturally occurring food in the diets of the cultured animals, thus enhancing reliance and reducing production costs and environmental impact. Field trials are currently being conducted in Vietnam and Bangladesh to better understand nutrient transfer in aquaculture ponds.
The word ‘aquaponics’ is a combination of ‘aquaculture’ (fish farming) and hydroponics (cultivation in water). It raises both vegetables and fish in a limited space at a relatively low financial cost by adding diversification in culture technique. In this study, experiments were setup with an aim for integrated culture of fish and vegetables in cost effect aquaponics. Pond aquacponics can contribute to increase in food production and will be more popular than traditional only pond fish culture system due to optimal use of the pond.
This story is about the change in the food intake of a young boy, Khoka, after his family started to grow fish and vegetables in a homestead pond. Khoka’s parents are poor. They do not have land to grow food even for their own consumption, nor do they earn enough to buy food from the market. Khoka was unhappy with the family’s monotonous diet. Then his father was introduced to WISH (water + fish) pond technology by Ali, a local service provider trained by WorldFish. This pond enables the family to grow small fish and vegetables in a portable pond that only needs 6m2 of space.
The vast floodplains of southern Bangladesh have been transformed over centuries into a patchwork of rice fields and aquaculture ponds.
To increase the food production from this challenging landscape, farmers have developed a unique agricultural system called a gher. A pond is dug into the rice field, and the excavated mud is piled up around the banks to create both a footpath to navigate the expansive grid and cultivable land for growing vegetables.
“I was in poverty, but I overcame it through my own will and with the help of the project,” Komola Roy says proudly.
A mother and housewife, Komola is one of 96 women across eight communities in southern Bangladesh who helped design and implement a research project to identify the best varieties of fish and feed for local fish farming conditions.
Part of a series of WorldFish (http://www.youtube.com/playlist?list=PL_5s5CPGqCKQtv15flpx4UKDltm3JyEIM) this video provides advice on selecting the best site for an aquaculture pond and how to prepare the pond for fish.
This instructional video introduces the best practices for managing the quality of the water in aquaculture ponds. High water quality is essential for healthy and productive fish.
This video is part of the 'Best Management Practices for Egyptian Aquaculture' series. Watch more in the series to learn about fish health care, pond fertilization and more.