1. Identify Potential Aquafeed Ingredients

Carried out by one of the project students, Lily Akorfa Keledorme, it involved identifying locally available agro-industrial by-products in Ghana with potential use in tilapia culture. It encompassed a survey on the total output of each agro-byproduct, its seasonality, competition for the product from other end-users and ultimately its potential to support industrially-produced and farm-made aquafeeds in Ghana. The findings of this ingredient survey will serve as benchmark data to support the nutrition and growth studies

2. Conduct Fish Nutrition and Growth Trials

The choice of ingredient for the final feed production is based on its digestibility and ability to produce optimum growth in tilapia culture without compromising the organoleptic characteristics of the fish. To achieve this, the following tasks are carried out by Collins Duodu Prah and John Domozoro:

• Nutritional as well as anti-nutritional analyses of  selected ingredients
•  Digestibility studies of the raw and processed ingredients with tilapia
•  Controlled evaluation of the diets performance in tanks
• Field evaluation of diets performance in tanks, ponds and cages
• Assessment of organoleptic characteristics of fish (consumer acceptance, taste and palatability, etc.) fed the diets

3. Assess Environmental Impacts of Developed Feeds

 The production of an environmentally-friendly feed that does not impair the water quality of the culture system and natural environment is a priority to the SUSFEED project. Thus, our research students, Godfred Owusu-Boateng and Priscilla Animah Obirikorang, have focussed their works on:

• Monitoring the levels of total and dissolved phosphorus
• Total ammonia nitrogen in effluents of culture tanks and receiving waters

• Monitoring and quantifying total suspended solids in effluents of tanks
• Monitoring BOD and COD levels in culture and receiving waters
• Modelling feed effects on water quality