Surimi wastewater characteristics and its toxicity to the fingerlings of tilapia, Oreochromis mossambicus..PDF (original) (raw)
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Journal of Aquaculture Research & Development, 2017
Aquaculture wastewater collected from a catfish farm in Ibadan metropolis was treated with duckweed, Lemna minor (Td) for two weeks and thereafter used in the culture of Nile tilapia (O niloticus). The performance of O niloticus raised in Lemna minor treated waste water was compared with bacteria-treated waste water, Bacillus sp. (Tb) and well water (Tc) as control (untreated). The Bacillus sp. was isolated from the catfish wastewater, and was positive to Gram's staining, catalase and glucose fermentation test. Nile tilapia juveniles (n=54) of an average initial weight of 10.43 ± 0.04 g were stocked in triplicates per treatment and fed to satiation twice daily for 8 weeks. There was significant difference (P<0.05) in the quality of waste water in all the treatments. Compared to initial waste water, Td showed a significant reduction in biological oxygen demand, BOD (1.23 ± 0.03 mg/L vs. 36.80 ± 1.89 mg/L), chemical oxygen demand, COD (2.20 ± 0.06 mg/L vs. 58.81 ± 1.89 mg/L), sulphate (0.50 ± 0.06 mg/L vs. 5.53 ± 0.33 mg/L) and phosphate (5.40 ± 0.31 mg/L vs. 18.43 ± 0.78 mg/L) after 2 weeks of treatment. The level of phosphate, BOD, COD, nitrate, and TSS were lowest in Td compared to Tb and Tc (P<0.05). The lowest level of ammonia was obtained in Tc (0.15 ± 0.10 mg/L), compared to Td (0.15 ± 0.10 mg/L) and Tb (0.66 ± 0.28 mg/L). The highest percentage weight gain (WG) of 34.37 ± 0.60% and the lowest feed conversion ratio (FCR) of 1.59 ± 0.03were recorded in fish raised in Td (P<0.05). Oreochromis niloticus juveniles raised in Td also had the highest specific growth rate (SGR) of 0.23 ± 0.01% compared to 0.19 ± 0.00% recorded in fish raised in both Tb and Tc. Fish raised in Tc had the highest survival rate (100 ± 0.00%) compared to the fish cultured with Tb (77.80 ± 2.30%) and Td (72.20 ± 1.95%). The research findings suggest that Lemna minor could be used in fish culture with positive effect on water quality and growth performance.
International Journal of Fisheries and Aquatic studies, 2018
Growth of Indian major carps (Catla catla, Labeo rohita and Cirrhinus mrigala) reared in Guard pond containing treated wastewater of petrochemical industry (Oil and Natural Gas Corporation, Hazira, India) was investigated. Fingerlings of selected species were stocked at 9000/ha in ratio of 1:4:2 and reared for one year. Growth parameters viz., total length, standard length and weight of fishes were also measured quarterly. During the study period it was observed that catla attained 35.69±0.36 cm total length, 28.32±0.31 cm standard length and 546.54±18.96 gm weight; rohu attained 36.13±0.36 cm total length, 29.12±0.17 cm standard length and 551.46±17.23 gm weight while mrigal attained 33.50±0.22 cm total length, 27.56±0.21 cm standard length and 385.00±8.89 gm weight. Study revealed that maximum growth was observed in rohu compared to other fish (catla and mrigal) due to abundance of phytoplankton which is food rohu. Water qualities of treated water of ONGC were conducive for fish farming and growth of fishes was satisfactory. Natural Gas Corporation (ONGC), Hazira in one of the important petrochemical industry at the bank of Tapi River in Surat and uses huge amount of water for refining process and produce wastewater. The industry has set up the treatment plant where physical, biological and chemical methods are applied to treat the wastewater to maintain water quality and this treated wastewater were used for aquculture purposes. Sewage contain nutrient that stimulate growth of aquatic plants (Allen, 1985) [2] and enhance production of natural food for fish. Sondhia (2008) reported that sewage water reduces production cost by substituting chemical fertilizers and feeds while providing useful nutrients recycled encouraged fish growth. Growth and other biological aspects of fresh water fish Labeo rohita, Clarias batrachus and Catla catla in effluent of Saga industry were investigated by respectively. Fish culture in sewage reported by Bhatia (1970) [6] , Ghosh et al. (1973) [10] , Prabhavathy (1988) [17] , Jhingran and Ghosh (1988)
Influence of some Water Quality Parameters on Nutritive Value of Nile Tilapia (Oreochromis Niloticus), 2023
The work was conducted to evaluate the influence of water quality characteristics on nutritive value of Nile tilapia (Oreochromis niloticus) in aquaculture environment, specifically in different types of ponds (earthen and concrete Ponds) in fish farms in Gezira State, mainly crude protein, crude fibre, moisture and dry matter as well as ash. And water quality parameters are: Ammonia, TDS, Temperature and pH. The findings of this work showed some fact on the manifesto of the main effects of some water quality parameters on cultured fish emphasizing on nutritive value between earthen and concrete ponds of O. niloticus which serves as the principle basis in evaluating the nutritional and economical value of the fish and water environment as well. A total of 36 samples of nile tilapia (Oreochromis niloticus) were collected from earthen and concrete ponds fish farms around Gezira State and the samples were subjected to chemical analysis (moisture, dry matter, ash, crude protein, fat, and crude fibre). Also, a total of 36 samples of water were collected from the ponds where fish samples were taken, the samples were taken from pond sites: (Left, Central and Right of ponds). Then, subjected to analysis. The data was subjected to SPSS by using completely randomized design (CRD). The findings of this study revealed that, Oreochromis niloticus from concrete ponds has higher level of nutritive value than earthen ponds farms except fibre contents is higher in earthen ponds farms than concrete ponds farms, and there was highly significant difference (P≤0.01). In nutritive value of Fish between two types of ponds system, except crude fibre is recorded significant difference at (P≤0.05) between two ponds culture system. Also, water quality according to pond type showed a highly significant different (p ≤ 0.01) in all parameters. In contract, Water Quality Parameters according to Pond Sites showed no significant different (p > 0.05) in ammonia and TDS. On the other hand, temperature and pH value showed a highly significant different (p ≤ 0.01). However, all checked parameters of water were fallen in the international acceptable limits. The researchers were recommended that, Facilitations, Encouragements and attention should be paid to aquaculture sector in Gezira state, Sudan so as to increase fish production from aquaculture rather than fisheries sectors.
Bangladesh journal of fisheries, 2019
Various quality attributes of Climbing perch (Anabas testudineus) and Nile tilapia (Oreochromis niloticus) collected from pond and open water were studied. Organoleptic characteristics (SDP value), proximate composition, TVB-N, heavy metal (Cd and Cu), and bacteriological aspect of the samples were compared. The protein content of A. testudineus and O. niloticus of pond origin was 17.03% and 17.15%, whereas of open water was 16.95% and 16.24%, respectively. The lipid content of A. testudineus and O. niloticus of pond was 12.13% and 8.03 %, whereas from open water was 11.82% and 7.09%, respectively. Ash content of A. testudineus and O. niloticus from pond was 5.87 % and 4.03 % and from open water was 6.30% and 4.87%, respectively. The TVB-N content of A. testudineus and O. niloticus from pond was 2.24 mg/100g and 5.32 mg/100g but from open water were 2.63 mg/100g and 5.49 mg/100g, respectively. The bacterial load of A. testudineus and O. niloticus from pond was 2.25x10 6 CFU/g and 1.84x10 5 CFU/g, whereas from open water was 2.54x10 7 CFU/g and 1.97x10 6 CFU/g, respectively. Heavy metal concentration in A. testudineus and O. niloticus from pond was 0.39 ppm and 0.37 ppm for cadmium (Cd) and, 0.4 ppm and 0.36 ppm for Copper (Cu), respectively. On the other hand, the heavy metal concentration in A. testudineus and O. niloticus harvested from open water was 0.77 ppm and 0.96 ppm for Cd and, 0.58 ppm and 1.87 ppm for Cu, respectively. All parameters were within the acceptable limit except APC in open water fishes. Result of the present research indicated that the pond fishes were of better quality and safer than those of the open water fishes.
Suitability of Uisng Duckweed as feed and treated sewage as water source in tilapia aquaculture
Feasibility of using both treated effluent and duckweed biomass from a pilot-scale UASB-duckweed ponds system treating domestic sewage was evaluated in rearing Nile tilapia (Oreochromis niloticus). The nutritional value of duckweed was compared with wheat bran, used as a local fish feed ingredient, by applying these as the only source of feed for tilapia juveniles weighing 20 grams initial mean body weight. Two sources of water were used for each feed trial, treated-sewage and freshwater. The experiment was conducted in parallel with a conventional settled sewage-fed fishpond stocked with tilapia. Results of growth performance demonstrated that, in case of freshwater ponds specific growth rate (SGR) of tilapia fed on fresh duckweed was significantly (p < 0.01) higher than the SGR in wheat bran fed pond. No significant difference (p > 0.05) was observed between the two feeding regimes in case of treated sewage-fed ponds. The SGR of tilapia reared in the treated sewage-wheat bran-fed pond (TWP) was significantly higher (p <0.01) than the SGR in the freshwater-wheat bran-fed pond (FWP). On the other hand, due to the early spawning in the treated sewage-duckweed-fed pond (TDP) SGR of tilapia in the latter was significantly lower (p <0.05) than the SGR in the freshwater-duckweed-fed pond (FDP). The results demonstrated that duckweed-fed ponds provide higher net fish yield (11.8 ton/ha/y in TDP and 9.6 ton/ha/y in FDP), than wheat bran-fed ponds (8.9 ton/ha/y in TWP and 6.4 ton/ha/y in FWP). The fish yields in the ponds fed with treated sewage were higher than those in the ponds fed with freshwater. Negative net yield was observed in the settled sewage-fed pond (SSP) at -0.16 ton/ha/y. The negative results obtained in this pond, were attributed to the high mortality of 60% in the adult fish and 38% in the fry during the autumn. The best result was obtained in the treated effluent-duckweed-fed fishpond, providing 11.8 ton/ha/y net yield, which shows the potential value of both treated sewage and duckweed in aquaculture of tilapia.
TPI Journal, 2023
Nile tilapia is successfully farmed in a wide range of environmental conditions using different culture systems and is an important aquaculture fish species in many parts of the world. The objective of this study was to compare the growth, hematological, serological and antioxidant status of Nile tilapia grown in different culture systems such as earthen pond (control), biofloc (BF), aquaponics (AP), and polythene lined (PL) ponds. Fish samples were collected from ten sites for each culture system. No significant difference between the growth in different culture systems, although Feed consumption ratio was higher in PL ponds. Among the haematological parameters studied, the fish cultured in BF and PL ponds showed significantly high (p<0.05) White Blood Cell (WBC) values. Red Blood Cell (RBC) and hematocrit were high in fish reared in PL ponds, and mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) were significantly higher in fish reared in biofloc. Serum parameters showed significantly less glucose level in AP compared all the other groups. Antioxidant enzymes were significantly higher (p<0.05) in fish reared in BF and AP compared to control. The study revealed that most of the health indices used in the study gave better values for fishes grown in biofloc and aquaponics. Biofloc and aquaponics system with stocking density and production per unit area almost 20 and 15 times higher than the earthen ponds respectively, provides better health status to the fish, thus reducing chances of disease outbreaks in these systems, if well managed.
Suitability of Using Duckweed as Feed and Treated Sewage as Water Source in Tilapia Aquaculture
2004
Feasibility of using both treated effluent and duckweed biomass from a pilot-scale UASB-duckweed ponds system treating domestic sewage was evaluated in rearing Nile tilapia (Oreochromis niloticus). The nutritional value of duckweed was compared with wheat bran, used as a local fish feed ingredient, by applying these as the only source of feed for tilapia juveniles weighing 20 grams initial mean body weight. Two sources of water were used for each feed trial, treated-sewage and freshwater. The experiment was conducted in parallel with a conventional settled sewage-fed fishpond stocked with tilapia. Results of growth performance demonstrated that, in case of freshwater ponds specific growth rate (SGR) of tilapia fed on fresh duckweed was significantly (p < 0.01) higher than the SGR in wheat bran fed pond. No significant difference (p > 0.05) was observed between the two feeding regimes in case of treated sewage-fed ponds. The SGR of tilapia reared in the treated sewage-wheat bran-fed pond (TWP) was significantly higher (p <0.01) than the SGR in the freshwater-wheat bran-fed pond (FWP). On the other hand, due to the early spawning in the treated sewage-duckweed-fed pond (TDP) SGR of tilapia in the latter was significantly lower (p <0.05) than the SGR in the freshwater-duckweed-fed pond (FDP). The results demonstrated that duckweed-fed ponds provide higher net fish yield (11.8 ton/ha/y in TDP and 9.6 ton/ha/y in FDP), than wheat bran-fed ponds (8.9 ton/ha/y in TWP and 6.4 ton/ha/y in FWP). The fish yields in the ponds fed with treated sewage were higher than those in the ponds fed with freshwater. Negative net yield was observed in the settled sewage-fed pond (SSP) at -0.16 ton/ha/y. The negative results obtained in this pond, were attributed to the high mortality of 60% in the adult fish and 38% in the fry during the autumn. The best result was obtained in the treated effluent-duckweed-fed fishpond, providing 11.8 ton/ha/y net yield, which shows the potential value of both treated sewage and duckweed in aquaculture of tilapia.
The present study was aimed to determine the suitability of processing effluent discharged from Shimpo Exports, West Bengal for culture purpose. The rate of reaction of pollutants entering the water or the detrimental effects on the aquatic organisms are generally influenced by various environmental factors such as total alkalinity, hardness, dissolved oxygen, ph, turbidity, temperature etc. In aquatic environment the physico-chemical changes are occurred due to the release of effluents. Discharge of different kinds of waste to aquatic system also creates undesirable changes in fish such as physiological and haematological changes. Therefore, quality of water plays an important role for the survival and development of aquatic animal. All this necessitates the importance to study the physico-chemical parameters of processing effluent discharged to the surrounding water bodies. The experiment was set for 70 days in four treatment groups i.e. 0.25 % (T 1), 0.5% (T 2), 0.75% (T 3) and 1 %(T 4) and one control group i.e. 0% (T 0), with triplicates following completely Randomized Design (CRD). Various physicochemical parameters like colour, odour, pH, DO, hardness, total alkalinity, BOD, COD, phosphate-phosphorous, TS and TDS were determined using standard method. From the results of analysis, it is inferred that the physicochemical parameters were found to be increased from the control set except the dissolved oxygen which was found to be decreased. During the study it was also found out that the effluent characteristics are not within the permissible limits for fish culture.
International Journal of Agriculture and Biology
This work was conducted to study the possibility of cultivating algae for use as fish feed using vegetable and fruit canning industry wastewater treatment effluent. The results showed that Chlorella vulgaris showed successful growth in 10% initial stock solution, 20 cm water depth and for 12 days of cultivation. The algae attained a cell density of 13.72 × 10 5 cells/mL, biomass dry weight of 255 mg/L and protein content of 45.6%. Dried algae were used as a feed additive for tilapia (Oreochromis niloticus L.) cultivated in a vegetable and fruit canning industry oxidation pond. After 3 months of cultivation, fish fed 3% dried algae had a higher (P<0.05) fish survival rate and percentage weight gain than the fish fed only the commercial feed.
Brazilian Archives of Biology and Technology, 2005
The objective of this study was to evaluate the effect of different feed management on the quality of effluent water generated in Nile tilapia (Oreochromis niloticus) culture ponds. Feed was supplied as follows: natural food, and pelleted, extruded or minced ration. The study was conducted during 19 weeks in 12 continuous water exchange ponds of 300 m² each, with a population of male Nile tilapia juveniles, in a density equal to 1.7 fish m-2. Feeds contained 30% crude protein, 3,000 kcal digestible energy, and were supplied twice a day. Natural food consisted of chicken manure. Temperature, dissolved oxygen, pH, total phosphorus, total nitrogen, chlorophyll a and suspended solids were monitored weekly in the supplying and effluent water. Water residence time was also determined for the ponds. In general, effluent water quality decreased in all treatments.