The fish tank as a rumen? Indirect evidence from feeding beet pulp to tambaqui (Colossoma macropomum) Ghent University
The “green water effect” is a concept based on the observation that fish often thrive better in water that is not completely clean. We hypothesized that fibrous feeds in the water may be converted into microbial matter as in the rumen, and that fish could feed on this microbial matter. We therefore added different concentrations of sugar beet pulp to tanks with tambaqui in addition to their pelleted diet. A total of 18 tambaqui fish (1616 ±107 ...