Development and Testing of a Small-Scale Fish Filleting Machine for an Indian Major Carp, Rohu (Labeo rohita)

This paper describes a filleting machine designed for the popular Asian freshwater species rohu (Labeo rohita). The machine comprises three key units: conveying, filleting, and water spraying and collection. The filleting unit has two parallel disc blades for precise cutting, with adjustable spacing to accommodate a variety of fish backbone thicknesses. The conveying unit employs belt drives and spring-adjusted entry for smooth transport, while the water management unit sprays and cleans the filleting blades, ensuring efficient fish movement. The machine performed efficiently when set to its optimal settings and showed significant improvements compared to manual filleting while maintaining product quality.