The semi-arid landform that dominates the regional landscape of East Africa is prohibitive to aquaculture. But despite this reality, it’s still possible to rear and sell fish across scales. With modern fish farming techniques and technologies, fish farmers in East Africa can breed fish under growth-stimulating conditions that yield bumper harvests.
The Schema of a Modern Growth-Stimulating Fish Farm
The blueprint of the stimulating growth facility mainly comprises a system that facilitates the effective regulation of temperatures through the day and night, allowing the fish to feed freely under optimal temperatures at all times. The technological setup facilitates cruise control over the temperatures of fish tanks as well as hatcheries, where the eggs harvested from females are hatched and stored.
A typical hatchery is hospitable to fingerlings of all ages and sizes, even the most fragile ones that are just a few centimeters in length. Note that it’s advisable to locate the hatchery within a few meters away from the fish tanks due to the frailty of the eggs. A good practice is to divide the fingerlings into groups according to their ages and sizes. They can all be properly reared in basins that are used for household washing, even in growth-stimulating aquaculture. But the only difference in growth-stimulating aquaculture is the mechanisms deployed to enhance control over temperature and feeding.
The temperature control mechanism is deployed in rearing fish at all stages, from eggs to the fingerlings, fries, juvenile, and adult. The most optimal temperatures are those between 28-30 C. Under such conditioning, the time-to-market for the fingerlings can be reduced to one month. The fingerlings left in the basins after one month are transferred to the fish tanks, where they’re reared into adulthood.
The temperature control mechanisms are basically air and water circulating units. The components parts that regulate air are made up of purifiers and filters that remove ammonia, nitrogen and carbon dioxide from the water and enhance the circulation of oxygen in the tanks. This produces a growth-stimulating environment that induces better feeding and nutrient absorption. When the fish feeds more frequently under optimal temperatures, their growth rate is catalyzed. Whereas in traditional aquaculture, the temperature in the night drops to levels that prohibit feeding. Hence the fishes do not feed properly during the night in traditional fish farms.
The Amazing Results
With the fishes feeding more frequently in a fish tank that is integrated with temperature controlling mechanisms that keep the fish tanks warm during daytime as well as nightfall, the harvest time for fish can be cut down by a few months from 8 to 4 or 6. Since they regularly feed at all times of the day, the fish mature at a quicker rate.
But that’s not all there is to the benefits of using the system. The fishes also weigh a whole lot more than usual. Hence they can be sold at higher prices.
This system can bring about bumper harvests that are multiple folds of the usual harvests. At this rate, fish farming can be just as lucrative in a semi-arid region like East Africa as it would in any part of the continent.