Many people have asked us why we farm Rendalli, at which point we usually say – why wouldn’t you?! Over the past 10 years, plenty of research has been conducted at our farm to validate the following points:-
- Rendalli, unlike Mossambicus or Niloticus are able to process whole foods. What this means is that Rendalli thrive on a diet of grass, lettuce, duck weed, comfrey, lucern, banana leaves and a whole lot more. As a result it is easy to either grow or source food that is FREE. In any aquaculture venture food costs account for between 30 and 50% of all costs – so if you can remove it from the equation, why wouldn’t you?!
- As a result of the natural diet, Rendalli have natural Omega-3 in their fillets. Pretty much all other commercially farmed fish fed only pellets have almost no omega 3 as a result of the food input. Humans cannot produce omega-3 naturally and depend on ingesting it in food sources.
- On average, we have consistantly obtained fillet to mass ratios of 48%, and on occasions as high as 53%. Compare this to the industry standard of 33% for Oreochromis and decide for yourself which you prefer?
- Growth rates of the Rendalli match that of both Mossambicus and Nicolticus (excluding GMO supermale stock) and at times even exceeds it. Note for our studies Rendalli are fed a consistent natural leafy diet, and other fish commercial pellets. This doesn’t take into account the 15% larger fillets.
- Rendalli are able to tolerate colder temperatures down to 12 degrees c. This can ensure you get through winter without loosing valuable stock, or incurring high heating costs.
Feel free to read a report written by Ken-Muir and also a masters thesis by Hlophe confirming the above.