Effects of biofloc technology on reproduction and ovarian recrudescence in Nile tilapia

Alvarenga, Érika Ramos de; Sales, Suellen Cristina Moreira de; Brito, Túlio Soares de; Santos, Cláudia Regina dos; Correa, Rebeca Dias Serafim; Alves, Gabriel Francisco de Oliveira; Manduca, Ludson Guimarães; Turra, Eduardo Maldonado

doi:10.1111/are.13420

Cited by 13 publications

(7 citation statements)

References 23 publications

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“…The biofloc technology (BFT) has gained great prominence in tilapia culture due to the multiple positive effects of this system in terms of controlling water quality, reproduction, nutrition, welfare, and growth of fish (Alvarenga et al., ; Azim & Little, ; Crab, Defoirdt, Bossier, & Verstraete, ; De Schryver, Crab, Defoirdt, Boon, & Verstraete, ; Ekasari, Rivandi et al., ; Ekasari, Zairin et al., ; Ekasari et al., ; Long, Yang, Li, Guan, & Wu, ; Luo et al., ). However, BFT is far from being fully developed for tilapia culture and adjustments could be made to increase the growth performance of animals reared in this system.…”

Section: Introductionmentioning

confidence: 99%

Moderate salinities enhance growth performance of Nile tilapia (Oreochromis niloticus) fingerlings in the biofloc system

et al. 2018

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The biofloc technology (BFT) has recently gained attention as an economic and environmentally sustainable system for aquaculture. The use of BFT with salinized water could be used to minimize the negative effects of nitrogenous waste and improve the growth performance of Nile tilapia. This work evaluated the growth performance, survival, gill lesions, and fillet composition of tilapia fingerlings (Oreochromis niloticus) reared during 70 days with different salinities (0, 4, 8, 12, and 16 g/L) in a biofloc previously developed. The results indicated that the use of mature bioflocs alone was sufficient to avoid fingerling mortality due to nitrite peaks. Moreover, the salinized water, especially between 4 and 8 g/L (maximum points around 6 g/L), can be recommended in BFT to improve the growth performance of tilapia in the initial culture phase. The salinity level that was evaluated did not affect fillet composition nor the occurrence of gill lesions. The total ammonia nitrogen concentration was lower in freshwater than in salinized water (p < 0.05).Nitrite peaks in salinities of 12 and 16 g/L appeared later and were higher in comparison to other treatments. Considering minimal water exchange in BFT, the use of salinized water in this system may be environmentally viable. K E Y W O R D Sbiofloc technology, growth performance, Oreochromis niloticus, salinized water

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Section: Introductionmentioning

confidence: 99%

Moderate salinities enhance growth performance of Nile tilapia (Oreochromis niloticus) fingerlings in the biofloc system

et al. 2018

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“…Con respecto a la reproducción en diferentes ambientes de cultivo, Ramos de Alvarenga et al (24) compararon el desempeño reproductivo en tilapias mantenidos en sistemas de agua clara, que sería el equivalente al tratamiento TC en este trabajo y en sistemas de biofloc y no observaron diferencias significativas entre ambos sistemas con respecto a la fecundidad relativa, el porcentaje de fecundación, el número de larvas producidas, etc., por lo cual estos autores concluyeron que pueden mantenerse reproductores de esta especie bajo ambos sistemas sin tener afectaciones a la reproducción.…”

Section: Discussionunclassified

“…En el presente estudio se observó que en cuanto a la producción de huevos en los tres lotes de reproductores mantenidos en los tratamientos TC, con agua verde y T2 con biofloc, no se presentaron diferencias significativas, similar a lo reportado por Ramos de Alvarenga et al (24). No obstante, la producción promedio de huevos obtenidos a partir de los reproductores mantenidos en el tratamiento T1, con microorganismos simbióticos o "aquamimicry" se mantuvo alrededor de 80 ml, en comparación con los 21 y 36 ml de huevos obtenidos en los tratamientos TC y T2, respectivamente, representa casi el doble.…”

Section: Discussionunclassified

“…No obstante, son escasas las referencias donde se consideren los potenciales beneficios de los sistemas heterótrofos sobre desempeño reproductivo de las especies cultivadas, a pesar de que se ha demostrado que tales sistemas son una rica fuente de proteínas y lípidos que pueden ser utilizados en los primeros estadios de la formación de gónadas y en particular en el desarrollo ovárico en los reproductores tanto en camarones como en peces (21,22,23,24). Particularmente, en el caso de los reproductores de tilapia, los resultados obtenidos han sido contrastantes con respecto a los potenciales beneficios de los sistemas heterótrofos sobre la fecundidad.…”

Section: Introductionunclassified

“…Por una parte, Ekasari et al (25) observaron un incremento significativo en la fecundidad de las hembras cuando estas eran mantenidas en un sistema de biofloc, con respecto a las que eran mantenidas en un sistema tradicional. No obstante, Ramos de Alvarenga et al (24) no observaron diferencias significativas entre reproductores mantenidos en ambos sistemas con respecto a la fecundidad relativa, el porcentaje de fecundación y el número de larvas producidas. Cabe señalar, por otra parte, que hasta el momento no se ha evaluado el potencial beneficio que tendría el mantenimiento de reproductores de tilapia en "aquamimicry" sobre sus parámetros reproductivos.…”

Section: Introductionunclassified

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Productive performance of tilapia females, Oreochromis niloticus, under different farming methods.

Estrada-Godinez,

Rodríguez-Montes de Oca,

Pacheco-Marges

et al. 2023

Rev MVZ Córdoba

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Objectives: The objective was to assess the effect of different farming methods on the condition factor and egg production in female brooders of tilapia. Materials and methods: three different stocks of brooders were kept in three different experimental treatments – TC: green water (control), T1: aquamimicry, T2: biofloc, being each stock as a repetition at each experimental treatment. A sexual ratio of 3:1 was used and a commercial diet with a content of protein of 32% was provided twice at a day for 60 days. At the beginning and ending of the experiment, the condition factor was estimated. Every week, the eggs produced in each tank were collected, at the end of the experiment, the production volume was estimated in all experimental treatments. Results: In the condition factor no significant differences were observed at the beginning of the experiment, but at the ending significant differences were recorded between the stocks, but not between treatments. Either no significant differences were observed when the condition factor was assessed between brooders stock and experimental treatments. Finally, significant differences were observed in the egg production between the experimental treatments, with the higher production into the three brooders stocks of the T1 treatment, with production volumes around of 70 ml. Conclusions: The maintenance of tilapia broodstock in “aquamimicry” culture systems, results in a significant increase in the volume of eggs production.

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Integrated biofloc technology in red tilapia aquaculture: Salinity-dependent effects on water quality, parental stock physiology, reproduction, and immune responses

Sallam,

Shehata,

Basuini

et al. 2024

Aquacult Int

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The study examines the impact of integrated biofloc technology (BFT), different salinity levels, and their combined effects over 90 days on various physiological parameters. The investigation includes growth performance and feed utilization, water quality, the chemical composition of biofloc and fish, digestive enzymes, reproductive performance, stress and biochemical indicators, and antioxidant-immune responses in red tilapia (Oreochromis spp.) broodstock. The fish were initially weighed (males: n = 270; 104 ± 0.96 g; females: n = 270; 93.2 ± 0.66 g) and subsequently divided into 12 treatment groups (6 for males and 6 for females) spread across 36 separate tanks (3 tanks per treatment; 45 fish per treatment; 15 fish/tank). The treatments involved three salinity levels (18, 28, and 36 ppt) in both clear water (CW) and BFT systems. The outcomes demonstrated that fish in the 36 ppt salinity with BFT treatment demonstrated significant improvements (P < 0.05) in growth parameters (final body weight, weight gain, and specific growth rate, feed intake, and feed conversion ratio). The condition factor in BFT groups increased in all salinity situations. The survival rates of broodstock were consistently high in all experimental conditions The study found that BFT and salinity significantly impacted (P < 0.05) whole body contents (moisture, protein, lipid, and ash) in both males and females. Water quality parameters showed variations between BFT and CW, with notable impacts (P < 0.05) on dissolved oxygen and pH. The BFT and salinity influenced digestive enzyme activities (protease, amylase, and lipase) and reproductive performance (males) and the 36 ppt salinity with BFT recorded the highest values. The hemato-biochemical and antioxidant-immune responses were also impacted by BFT and salinity exposure. The study highlights the potential benefits of incorporating BFT into red tilapia aquaculture systems, particularly in optimizing growth, health, and reproductive performance under various salinity conditions, which can enhance sustainable intensification, disease control, and environmental stewardship.

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Effects of biofloc technology on reproduction and ovarian recrudescence in Nile tilapia

Cited by 13 publications

References 23 publications

Moderate salinities enhance growth performance of Nile tilapia (Oreochromis niloticus) fingerlings in the biofloc system

Moderate salinities enhance growth performance of Nile tilapia (Oreochromis niloticus) fingerlings in the biofloc system

Productive performance of tilapia females, Oreochromis niloticus, under different farming methods.

Integrated biofloc technology in red tilapia aquaculture: Salinity-dependent effects on water quality, parental stock physiology, reproduction, and immune responses

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