Freshly fed watermelon rinds are processed using a mixer or beater to break them down into smaller pieces. This mixture is then sprinkled into the pond to support the growth of oysters, clams, grass carp, and squid. This feeding method is typically done twice daily. The amount of watermelon rind used depends on the water quality—between 80 to 100 kilograms per acre of water. Alternatively, for every thousand fish, 60 to 80 kilograms of watermelon rind can be added directly into the pond, allowing the fish to consume the pulp directly. In addition to providing nutrition, the watermelon rind also helps improve water quality by acting as a natural fertilizer, promoting the growth of beneficial microorganisms and algae that serve as additional food sources for the fish. To ensure the fish can effectively digest the watermelon rind, it's important to finely chop or puree the pulp before feeding.
For dry feeding, the watermelon rind is first peeled using a planer, then sun-dried and ground into a fine powder. This powder is then mixed with other feed ingredients and given to the fish at a rate of 2 to 3 kilograms per acre of fish pond, three times a day. Combining this with other commercial feeds ensures a balanced diet and enhances the overall health and growth of the fish. Using watermelon rind as part of the feed not only reduces waste but also provides an economical and sustainable feeding option for aquaculture operations.
This approach is both environmentally friendly and cost-effective, making it a popular choice among farmers looking to optimize their resources while maintaining high-quality fish production.Henan chinamian foods CO.LTD , https://www.ooossooo.com