Assessment of the Fertilization Capacity of the Aquaculture Sediment for Wheat Grass as Sustainable Alternative Use

Abstract

Periodic removal of sediment from aquaculture ponds is practiced to maintain their productivity and animal welfare. The recovery of sediment as a plant fertilizer could alleviate the costs of sediment removal. The objective of this study was to test the effects of a dried sediment, extracted from an aquaculture pond used for common carp cultivation, on the growth and physiology of potted wheat grass and the quality of the juice obtained from wheat grass. The results showed that sediment application did not produce significant morphological changes, although the values for plant height (16.94–19.22 cm), leaf area (19.67–139.21 mm2), and biomass (3.39–4.26 g/plant) were higher in sediment-grown plants. However, at a physiological level, the effect was negative, decreasing photosynthesis (0.82–1.66 μmol CO2 m2s−1), fluorescence ΦPSII (0.737–0.782), and chlorophyll content (1.40–1.83 CCI). The juice yield was reduced in the sediment treatments (46–58 g/100 g), while the quality was improved by increasing the content of phenols (2.55–3.39 µg/mL gallic acid equivalent), flavonoids (1.41–1.85 µg/mL quercetin equivalent), and antioxidant activity (47.99–62.7% inhibition of ;2,2-diphenyl-1-picrylhydrazyl). The positive results obtained in this study can be attributed to the moderate nutrient content of the sediment and a negligible concentration of heavy metals.

Evaluation of DDGS as a Low-Cost Feed Ingredient for Common Carp (Cyprinus carpio Linneus) Cultivated in a Semi-Intensive System

“…The growth performance, flesh quality, blood biochemical profile and intestinal microflora data were statistically processed by analysis of variance (ANOVA) followed by Tukey Test ( p < 0.05) using the SPSS software version 21 (IBM Corp, Armonk, NY, USA) [ 33 ]. The results were reported as means ± standard error of men (S.E.M.).…”

Inclusion of Sorghum in Cyprinus carpio L. Diet: Effects on Growth, Flesh Quality, Microbiota, and Oxidative Status

“…Using radio-labeling and aminotriazole inhibition, it was shown that CAT takes care of 50% of the hydrogen peroxide, and glutathione peroxidase/reductases take care of the other half [ 56 ]. Moreover, the literature data indicate increased levels of the enzyme, obtained by overexpression in different organelles, which extended the lifespan of transgenic laboratory mice by 20%, the greatest increase being related to the mitochondria, where the highest levels of reactive oxygen species are generated [ 56 , 57 , 58 , 59 ].…”

The Effect of Municipal Biosolids on the Growth, Physiology and Synthesis of Phenolic Compounds in Ocimum basilicum L.

“…Although the application of biosolids led to a lower synthesis of bioactive compounds, the positive effects at the morphological and physiological level support its use on soils affected by erosion for the cultivation of basil. The integration of sewage sludge into agricultural practices not only enhances soil fertility and nutrient content but also aligns with sustainable agricultural principles, reducing dependence on conventional chemical fertilizers [ 29 ]. Despite its potential benefits, the utilization of biosolids in agriculture remains relatively low in regions such as Romania.…”