Environmental sustainability of Nile tilapia net-cage culture in a neotropical region

Fialho, Naor S.; Valenti, Wagner C.; David, Fernanda S.; Godoy, Elisa; Proença, Danilo C.; Roubach, Rodrigo; Bueno, Guilherme Wolff

doi:10.1016/j.ecolind.2021.108008

Cited by 11 publications

(7 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In light of environmentally sustainable aquaculture, such exogenous phytase and blend of xylanase and β‐glucanase used in this study can be seen as promising tools to improve the efficiency of N utilization and P retention and reduce their potential of eutrophication. These insights have been recently highlighted to assess environmentally sustainable aquaculture (Fialho et al, 2021; Valenti et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Particularly, phytase, xylanase and β‐glucanase may be helpful to create environmentally sustainable diets for fish farming in compliance with sustainability principles (FAO, 2020). Markedly, the efficiency N and P utilization have been identified as the crucial sustainability indicator for assessing aquaculture systems (Fialho et al, 2021). Furthermore, it may be useful for assessing the economic dimension of the aquaculture system (Valenti et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Top‐sprayed mixture of phytase, xylanase and β‐glucanase enhances energy and nutrient matrix in all‐vegetable diets for Nile tilapia

Nakamura

Macêdo

Cruz

et al. 2022

Aquaculture Research

View full text Add to dashboard Cite

This study aimed to evaluate the effects of supplemental phytase with xylanase and β‐glucanase blend on the apparent digestibility coefficient (ADC) of gross energy and nutrients, including amino acids, minerals, and nitrogen (N) and phosphorus (P) balance in Nile tilapia, Oreochromis niloticus. Diets were elaborated either without enzyme supplementation (control) or supplemented with phytase (PHY), xylanase and β‐glucanase (XB) blend or a combination of phytase plus xylanase and β‐glucanase (PHY+XB) blend. Fish (n = 192; 60 ± 3.4 g) were fed with the experimental diets replicated four times. Compared with the control group, fish‐fed with the PHY+XB diet showed a higher ADC of gross energy and nutrients, including amino acids and minerals. Also, compared to control diet, digestible energy, digestible protein and available P contents were higher in fish‐fed diet PHY+XB by 1.63 MJ kg−1, 7.21 and 4.70 g kg−1 diet respectively. Compared to the control group, fish‐fed diet PHY+XB displayed lower total N and P loss of 17.51 and 10.09 g kg−1 of body weight gain (BWG) respectively. The study findings provided new insight into the nutritive value and ecofriendliness/sustainability of diets associated with exogenous enzymes for tilapia culture.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Top‐sprayed mixture of phytase, xylanase and β‐glucanase enhances energy and nutrient matrix in all‐vegetable diets for Nile tilapia

Nakamura

Macêdo

Cruz

et al. 2022

Aquaculture Research

View full text Add to dashboard Cite

show abstract

“…Intensive technologies in earthen ponds are operated with high flow rates (proportional to biomass density) to provide constant water refreshment [30]. In addition to pond farming, the use of reservoirs for aquaculture is also common in LAC, either as a place for extensive management or intensive culture in floating cages [32][33][34]. Although recirculating aquaculture systems (RAS) are more and more widely used in culture of marine species using saltwater, they do not represent a significant share in Latin American freshwater aquaculture [16].…”

Section: Water Resource Intensity Of Lac and Eu Aquaculture Productionmentioning

confidence: 99%

“…Nile tilapia, Intensive cage culture in reservoir 6 (Brazil) <0.01 m 3 /kg Water dependency analysis focused only on blue water use during on-growing stage. Source: [33] African catfish, intensive RAS culture 7 (Netherland) 0.1 m 3 /kg Analysis scoped system-associated (blue) water use during on-growing. If feed-associated (green) water use was added, water use would amount to 0.5 m 3 /kg.…”

Section: Species Production System Direct Water Use 1 Source and Furt...mentioning

confidence: 99%

Freshwater Aquaculture Development in EU and Latin-America: Insight on Production Trends and Resource Endowments

2022

View full text Add to dashboard Cite

This paper provides a comparative overview of decadal changes in aquaculture production in the European Union (EU-27) and Latin America and the Caribbean (LAC). Contrary to other regions of the world, freshwater fish farming in these two territories is a marginal sub-segment of the aquaculture sector. Using an indicator-based approach, we track development tendencies in freshwater aquaculture, focusing on the main established and emerging species, diversification, and shifts in the mean trophic level of farmed animals. Geographical patterns in production trends are revealed in both regions. The study attempts to explain between-region and between-country differences in aquaculture growth by analyzing freshwater resource endowments at region-level and country-level, using total renewable water resources (TRWR) as an indicator of water-abundancy. Thermal optimum of main produced species is matched against climate conditions prevailing in main producer countries to provide further understanding of spatial heterogeneity in growth rates of aquaculture sector.

show abstract

“…It is a suitable aquaculture species in earthen pond settings for monoculture and polyculture, integrated culture in rice fields, and cages culture systems across the country (Kunda et al, 2021). One of the potential production strategies of this species involves with cage culture system that has been practiced in many countries like Bangladesh, Thailand, Vietnam, Philippines, Laos, Pakistan, India, Nepal, Cambodia, Malaysia, Indonesia, Fiji, Papua New Guinea, Ghana, Ivory Coast, Nigeria, Uganda, Zambia, Zimbabwe, Ethiopia and Brazil (Bhujel, 2019;Fialho et al, 2021;Gibtan et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Commercial Nile tilapia Oreochromis niloticus production in net cages at the River Dakatia, Chandpur, Bangladesh

Hossain

Hosain

Tabassum

et al. 2023

J Bangladesh Acad Sci

View full text Add to dashboard Cite

This study examined the intensification of mono-sex Nile tilapia Oreochromis niloticusaquaculturein riverine net cages installed at the River Dakatia, Roghunathpur, Chandpur. This study performed 120-day cage grow-out trials with densities of 50, 75, and 100 tilapia m-3 under three replications with an average initial weight of 28.92±8.37g per juvenile fish. The monthly water quality parameters (temperature, pH, dissolved oxygen, total alkalinity and hardness, ammonia-N and Nitrite-N) in the cage installation water area of the River Dakatia were found to be suitable for tilapia cage culture. The monthly average weight gain was significantly (p < 0.05) higher in 50 tilapia m-3 stocking density than in the other two stocking densities tested. The mean final weight and specific growth rate were significantly (p < 0.05) higher in 50 tilapia m-3 stocking densitythan the other two stocking densities. Significantly (p < 0.05) higher survival (97.92%) was found in the 50 tilapia m-3 stocking density group and followed by 86.74% and 84.39% in the 75 and 100 tilapia m-3 stocking densities, respectively. Consequently, the monthly relative and specific growth rate and feed conversion ratio were significantly (p < 0.05) higher in 50 tilapia m-3 stocking density fishes for the first, third, and fourth months. Gross production was comparable between 50 and 75 tilapia m-3 stocking densities but was significantly (p < 0.05) better than 100 m-3 stocking density. Net production was significantly (p < 0.05) higher at 50 tilapia m-3 stocking density group than those of 75 and 100 tilapia m-3 stocking densities. The best feed conversion ratio (1.60) was in the 50 tilapia m-3 stocking density group (p < 0.05) than those of 1.87 and 2.44 for the stocking of 75 and 100 tilapia m-3, respectively. Benefit-cost ratio and net profit were significantly (p < 0.05) better at 50 and 75 tilapia m-3 than at 100 tilapia m-3 stocking density. Therefore, considering maximum outputs, benefits, and performances, we recommend stocking density at 50 mono-sex tilapia m-3 for the best growth, cost-effective production, and highest-economic return from 120 days of grow-out net cages in the riverine culture system. J. Bangladesh Acad. Sci. 47(1); 43-52: June 2023

show abstract

Environmental sustainability of Nile tilapia net-cage culture in a neotropical region

Cited by 11 publications

References 44 publications

Top‐sprayed mixture of phytase, xylanase and β‐glucanase enhances energy and nutrient matrix in all‐vegetable diets for Nile tilapia

Top‐sprayed mixture of phytase, xylanase and β‐glucanase enhances energy and nutrient matrix in all‐vegetable diets for Nile tilapia

Freshwater Aquaculture Development in EU and Latin-America: Insight on Production Trends and Resource Endowments

Commercial Nile tilapia Oreochromis niloticus production in net cages at the River Dakatia, Chandpur, Bangladesh

Contact Info

Product

Resources

About