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Water quality, animal performance, nutrient budgets and microbial community in the biofloc-based polyculture system of white shrimp, Litopenaeus vannamei and gray mullet, Mugil cephalus

(2020) AQUACULTURE. 515.
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Abstract
Shrimp polyculture has not been common practice because it is mostly limited to extensive aquaculture systems. A combination of shrimp-fish polyculture and biofloc technology may have the potential to substitute low intensive shrimp polyculture systems. An indoor trial was conducted to investigate whether a biofloc-based co-culture of Litopenaeus vannamei and Mugil cephalus generates synergistic effects at the level of water quality, animal production, and nutrient budgets relative to co-culture and/or biofloc based monoculture. Shrimp (0.50 +/- 0.16 g) were randomly distributed in 12 fiberglass tanks (5 m(3)) at a density of 80 shrimp.m(-3). Six tanks were operated as shrimp monoculture either without biofloc (M-only) or with bioflocs (M-biofloc). The other six tanks were operated as polyculture (Mugil cephalus size of 1.51 +/- 0.02 g added at 10% stocking density of the shrimp biomass) either without biofloc (P-only) or with biofloc (P-biofloc). The results showed that water quality parameters, such as total ammonia nitrogen (TAN), nitrite, nitrate, phosphate were significantly lower in M-biofloc and P-biofloc than in other treatments (p < 0.001). There were synergistic effects (reduction) at the level of N waste output but not for P waste output by applying polyculture in combination with biofloc technology. Total animal production was significantly higher in P-only and P-biofloc (4252 and 4425 g.tank(-1), respectively) relative to the respective monocultures. These polyculture treatments were also lower in feed conversion ratio (1.18 and 1.07, respectively) than in M-only and M-biofloc. Yet no synergistic effects were noticed by combining polyculture with bioflocs. The data seems to indicate that mullet is not an efficient biofloc consumer. Analysis of DGGE bacterial profile illustrated a dynamic microbial community structure in the water column and considerable difference in microbial community structures among treatments. It is concluded that the combination of shrimp-fish polyculture and biofloc has additive effects at the level of animal production and synergistic effects at the level of some water quality parameters.
Keywords
GRADIENT GEL-ELECTROPHORESIS, BIO-FLOCS TECHNOLOGY, BACTERIAL, COMMUNITIES, GROWTH-PERFORMANCE, STOCKING DENSITY, CONVERSION RATE, FEEDING-HABITS, CULTURE, TILAPIA, AQUACULTURE, Biofloc, Integrated production, Microbial community, Shrimp poly-culture

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MLA
Hoang Nghia Manh, et al. “Water Quality, Animal Performance, Nutrient Budgets and Microbial Community in the Biofloc-Based Polyculture System of White Shrimp, Litopenaeus Vannamei and Gray Mullet, Mugil Cephalus.” AQUACULTURE, vol. 515, 2020, doi:10.1016/j.aquaculture.2019.734610.
APA
Hoang Nghia Manh, Nguyen, P. N., & Bossier, P. (2020). Water quality, animal performance, nutrient budgets and microbial community in the biofloc-based polyculture system of white shrimp, Litopenaeus vannamei and gray mullet, Mugil cephalus. AQUACULTURE, 515. https://doi.org/10.1016/j.aquaculture.2019.734610
Chicago author-date
Hoang Nghia Manh, Phuoc N. Nguyen, and Peter Bossier. 2020. “Water Quality, Animal Performance, Nutrient Budgets and Microbial Community in the Biofloc-Based Polyculture System of White Shrimp, Litopenaeus Vannamei and Gray Mullet, Mugil Cephalus.” AQUACULTURE 515. https://doi.org/10.1016/j.aquaculture.2019.734610.
Chicago author-date (all authors)
Hoang Nghia Manh, Phuoc N. Nguyen, and Peter Bossier. 2020. “Water Quality, Animal Performance, Nutrient Budgets and Microbial Community in the Biofloc-Based Polyculture System of White Shrimp, Litopenaeus Vannamei and Gray Mullet, Mugil Cephalus.” AQUACULTURE 515. doi:10.1016/j.aquaculture.2019.734610.
Vancouver
1.
Hoang Nghia Manh, Nguyen PN, Bossier P. Water quality, animal performance, nutrient budgets and microbial community in the biofloc-based polyculture system of white shrimp, Litopenaeus vannamei and gray mullet, Mugil cephalus. AQUACULTURE. 2020;515.
IEEE
[1]
Hoang Nghia Manh, P. N. Nguyen, and P. Bossier, “Water quality, animal performance, nutrient budgets and microbial community in the biofloc-based polyculture system of white shrimp, Litopenaeus vannamei and gray mullet, Mugil cephalus,” AQUACULTURE, vol. 515, 2020.
@article{8669004,
  abstract     = {{Shrimp polyculture has not been common practice because it is mostly limited to extensive aquaculture systems. A combination of shrimp-fish polyculture and biofloc technology may have the potential to substitute low intensive shrimp polyculture systems. An indoor trial was conducted to investigate whether a biofloc-based co-culture of Litopenaeus vannamei and Mugil cephalus generates synergistic effects at the level of water quality, animal production, and nutrient budgets relative to co-culture and/or biofloc based monoculture. Shrimp (0.50 +/- 0.16 g) were randomly distributed in 12 fiberglass tanks (5 m(3)) at a density of 80 shrimp.m(-3). Six tanks were operated as shrimp monoculture either without biofloc (M-only) or with bioflocs (M-biofloc). The other six tanks were operated as polyculture (Mugil cephalus size of 1.51 +/- 0.02 g added at 10% stocking density of the shrimp biomass) either without biofloc (P-only) or with biofloc (P-biofloc). The results showed that water quality parameters, such as total ammonia nitrogen (TAN), nitrite, nitrate, phosphate were significantly lower in M-biofloc and P-biofloc than in other treatments (p < 0.001). There were synergistic effects (reduction) at the level of N waste output but not for P waste output by applying polyculture in combination with biofloc technology. Total animal production was significantly higher in P-only and P-biofloc (4252 and 4425 g.tank(-1), respectively) relative to the respective monocultures. These polyculture treatments were also lower in feed conversion ratio (1.18 and 1.07, respectively) than in M-only and M-biofloc. Yet no synergistic effects were noticed by combining polyculture with bioflocs. The data seems to indicate that mullet is not an efficient biofloc consumer. Analysis of DGGE bacterial profile illustrated a dynamic microbial community structure in the water column and considerable difference in microbial community structures among treatments. It is concluded that the combination of shrimp-fish polyculture and biofloc has additive effects at the level of animal production and synergistic effects at the level of some water quality parameters.}},
  articleno    = {{734610}},
  author       = {{Hoang Nghia Manh and Nguyen, Phuoc N. and Bossier, Peter}},
  issn         = {{0044-8486}},
  journal      = {{AQUACULTURE}},
  keywords     = {{GRADIENT GEL-ELECTROPHORESIS,BIO-FLOCS TECHNOLOGY,BACTERIAL,COMMUNITIES,GROWTH-PERFORMANCE,STOCKING DENSITY,CONVERSION RATE,FEEDING-HABITS,CULTURE,TILAPIA,AQUACULTURE,Biofloc,Integrated production,Microbial community,Shrimp poly-culture}},
  language     = {{eng}},
  pages        = {{11}},
  title        = {{Water quality, animal performance, nutrient budgets and microbial community in the biofloc-based polyculture system of white shrimp, Litopenaeus vannamei and gray mullet, Mugil cephalus}},
  url          = {{http://dx.doi.org/10.1016/j.aquaculture.2019.734610}},
  volume       = {{515}},
  year         = {{2020}},
}

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