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The current experiment is designed to evaluate the effect of different aquafeeds (farm-made versus commercial) on growth, body composition, oxidative capacity, and fatty acid profile in the semi-intensive composite culture system. For this, 1,100 fingerlings/acre having initial body weight and length, Labeo rohita (61.34 g, 171 mm), Catla catla (71.45 g, 181 mm), and Cyprinus carpio (30.80 g, 91 mm) were randomly distributed to 16 ponds and randomly fed on eight different diets (n = 2 pond/diet) in a completely randomized research design. Aquafeed were farm-based diets (D1–D2) and commercial aquafeed (D3–D8). The farm-made diets contained various crude protein levels of maize gluten (24.9%) and rice polish (7.3%), whereas commercial diets were procured from commercial feed plants (AMG, Supreme, Aqua, Star Floating, Hi-Pro, and Punjab feed). The growth performance of carps (L. rohita and C. catla) was significantly improved (p0.05) across the treatments. These results also prove that the increase in the dietary protein level and lipid content can improve the fish’s body’s crude protein and fat levels. Feeding D3 improved the production performance, oxidative status, and fatty acid profile in composite major carps culture systems. Thus, based on growth, survival, and body composition, it is concluded that D3 and D4 may be recommended for a commercial culture of major carps. Dietary treatments had no significant impact (p>0.05) on water’s physical–chemical properties. Calcium content and alkalinity varied (p

Wastewater treatment is a major environmental problem in world particularly in Pakistan, and most conventional treatment approaches either have too much high cost or do not provide acceptable solution. The use of specially selected and engineered plants for environmental clean-up is an emerging technology called phytoremediation. Phytoremediation is the most eco-friendly and cost effective technique for removal of contaminants without the need of excavating or disposing them off. The study was conducted at NUST to treat wastewater of capacity 0.1 MGD and use this treated wastewater for horticulture purposes, fish feed and poultry etc. Apart from this, sampling from 10 points i.e. inlet, sedimentation tank and 8 different ponds were done once a week and different tests like pH, Temperature, TDS, COD, Total Coliforms, Fecal Coliforms etc. were conducted and depending upon the wastewater characteristics, best suitable plants were selected for greater decontamination efficiency for pilot scale plant. Three systems were established, lab scale, pilot scale and parallel scale treatment system, Parallel scale treatment system was designed to check the individual uptake efficiency by plants and the results were the following, water lettuce showed the maximum removal of COD i.e. 90.36%, typha and duckweed almost showed the same value of removal i.e. 83% and pennywort showed the least removal efficiency of COD i.e. 78%.