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Consequential study on different levels of C/N ratios used in biofloc-based aquaculture system / Estudo consequente sobre diferentes níveis de proporções C/N utilizadas no sistema de aquicultura à base de biofloc
Tayyab, K; Aslam, S; Ghauri, M. A; Abbas, A. S; Hussain, A.
Affiliation
  • Tayyab, K; Government College Women University. Department of Zoology. Faisalabad. PK
  • Aslam, S; Government College Women University. Department of Zoology. Faisalabad. PK
  • Ghauri, M. A; National Institute for Biotechnology and Genetic Engineering – NIBGE. Faculty of Sciences. Department of Industrial Biotechnology. Faisalabad. PK
  • Abbas, A. S; University of Education. Department of Zoology. Lahore. PK
  • Hussain, A; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
Braz. j. biol ; 83: 1-7, 2023. tab
Article in En | LILACS, VETINDEX | ID: biblio-1468899
Responsible library: BR68.1
Localization: BR68.1
ABSTRACT
Biofloc technology is much highlighted these days because of its tremendous effects on aquaculture. Microbes were enriched on cheapest organic carbon source i. e., powdered banana peels and were incorporated in different aquaria rearing grass carp fingerlings under different C/N treatments (101, 151 and 201) and 10% water daily water exchange. The initial growth of fingerlings was recorded. The experiment was settled in triplicates for 60 days and run parallel to control group provided with commercial feed and daily water exchange. Its effect was evaluated by measuring the growth of fingerlings and water parameters of each aquarium. The average % gain in weight and length of fingerlings was obtained significantly highest (28.12 ± 0.30g and 17.29 ± 0.46cm respectively) in aquaria containing pure powdered banana peels with 10% water exchange and C/N ratio was adjusted at 20 1 (T3) than other treatments and control. Ammonia and other water parameters were also under control in T3 than other experimental and control groups. By all counts, it was concluded that the highest C/N ratio in biofloc system had the potential to increment C. idella growth rate by reducing toxicity and could be used as fish meal substitute.
RESUMO
A tecnologia Biofloc é muito destacada hoje em dia por causa de seus tremendos efeitos na aquicultura. Os micróbios foram enriquecidos com a fonte de carbono orgânico mais barata, i. e., cascas de banana em , e foram incorporadas em diferentes aquários de criação de alevinos de carpa-capim sob diferentes tratamentos C/N (10 1, 15 1 e 20 1) e 10% de troca diária de água. O crescimento inicial dos alevinos foi registrado. O experimento foi resolvido em triplicatas por 60 dias e executado paralelamente ao grupo controle fornecido com ração comercial e troca diária de água. Seu efeito foi avaliado medindo o crescimento dos alevinos e os parâmetros da água de cada aquário. O% de ganho médio em peso e comprimento dos alevinos foi obtido significativamente mais alto (28,12 ± 0,30g e 17,29 ± 0,46 cm respectivamente) em aquários contendo cascas de banana em puro com 10% de troca de água e a relação C/N foi ajustada em 20 1 (T3) do que outros tratamentos e controle. A amônia e outros parâmetros da água também estavam sob controle no T3 mais do que nos outros grupos experimentais e de controle. Por todas as contagens, concluiu-se que a maior razão C/N no sistema de bioflocos tem o potencial de incrementar a taxa de crescimento de C. idella reduzindo a toxicidade e pode ser usada como substituto da farinha de peixe.
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Full text: 1 Index: LILACS Main subject: Carps / Aquaculture Limits: Animals Language: En Journal: Braz. j. biol Journal subject: BIOLOGIA Year: 2023 Type: Article

Full text: 1 Index: LILACS Main subject: Carps / Aquaculture Limits: Animals Language: En Journal: Braz. j. biol Journal subject: BIOLOGIA Year: 2023 Type: Article