The impact of mechanization on the improvement of some quality indicators of wastewater in the rainbow trout culture dual-purpose farms in Markazi Province-Iran

The most important goals of mechanization in aquaculture are to reduce the production costs and improve profitability, reduce production risk, observe health and prevent diseases, and observe environmental aspects in production, improving the quality of farm effluents and proper nutritional management lead to productivity. This research was conducted with the aim of investigating the efficiency of mechanization on the quality of wastewater in the dual-purpose rainbow trout culture farms in the Markazi province. 30 dual-purpose rainbow trout culture farms with high production capacity and more ponds located in 5 cities of the Markazi province were selected and their mechanized tools were determined. The physical and chemical factors of the inlet and outlet water, including dissolved oxygen, pH, nitrite, ammonia, nitrate, phosphate and total suspended solids were measured. Although the water factors of most of the studied farms were acceptable for raising rainbow trout, various variables such as the amount of production, health management, quality and quantity of washing ponds, output and discharge improper pools, failure to use siphons between two outlets, failure to implement fishing patterns, improper siphonage and drainage are effective in farm performance and disrupt the balance of physical and chemical factors of water and challenge the efficiency of mechanized devices and equipment used in the farms.

The impact of mechanization on the improvement of some quality indicators of wastewater in the rainbow trout culture dual-purpose farms in Markazi Province-Iran Keywords:

Mechanization , Dual-purpose Farms , Rainbow trout , Outlet , Inlet , Markazi Province