The price of fish pellets on the market is getting more expensive. In fact, feeding cost takes around 70% from the production cost. This is what encourages students of the Science Education Study Program, Faculty of Mathematics and Natural Sciences, UNY, namely Dinda Restu Nabila, Siska Yulianti and Faridatul Liana to innovate catfish alternative pellet.
According to Dinda Restu Nabila, water hyacinth (Eichhornia crassipes) and rice field snails (Pila ampullacea) have high protein substance which can be used as natural fish pellet. "The water hyacinth plant contains organic material which has a fairly high protein content, namely 11.2%, while the protein content of rice field snails is 15%," she explained.
Siska Yulianti explained that the ingredients used for catfish pellet are rice field snails, water hyacinth, bran, corn flour, starch, selenium, boiling stone, 0.1 N H2SO4 and 40% NaOH. "Corn in the pellet...
