Influence of duration of aeration on growth and survival of carp fingerlings during high density seed rearing

Pawar, Nilesh; Jena, J. K.; Das, Priya; Bhatnagar, D.D.

doi:10.1016/j.aquaculture.2009.02.030

Cited by 28 publications

(32 citation statements)

References 10 publications

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“…Similar trends in DO levels were also reported by Aravindakshan et al (1997); Jena et al (2001Jena et al ( , 2002; Sahu et al (2007) and Pawar et al (2009). The variation of DO and TAN at dawn and dusk for different treatments are presented in Fig.…”

Section: Water Quality Parameterssupporting

confidence: 75%

Effect of stocking density on water and soil quality, growth, production and profitability of farming Indian major carps

2016

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Indian major carps (IMCs), catla (Catla catla); rohu (Labeo rohita) and mrigal (Cirrhinus mrigala) were cultured at stocking densities of 20000 (T1), 35000 (T2) and 50000 (T3) fingerlings ha -1 for a period of 300 days in nine numbers of polythene lined ponds having an average water area of 150 m 2 . Stocking ratio of catla, rohu and mrigal were 4:3:3. Fishes were fed 35% protein diet twice daily. Water pH was maintained within the ideal range (6 -9) by intermittent liming. Significantly lower (p<0.05) levels of dissolved oxygen and higher values of total ammonia-nitrogen were recorded at higher stocking densities compared to lower ones. Significantly higher (p<0.05) specific growth rate (SGR) and lower feed conversion ratio (FCR) were recorded in T1 compared to T2 and T3. However, maximum production was recorded in T3 followed by T2 and T1. Highest values of investment as well as income were recorded in T3 followed by T2 and T1. However, the maximum net return was obtained in T1 (`140147±7048) followed by T3 (`133694±7931) and T2 (`101944 ± 4857). Further, significantly higher (p<0.05) profitability (PI) was recorded in T1 (85.51%) compared to T2 (45.03%) and T3 (45.04%). The results clearly showed that profitability of the culture system could not be increased only by increasing stocking densities.

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Section: Water Quality Parameterssupporting

confidence: 75%

Effect of stocking density on water and soil quality, growth, production and profitability of farming Indian major carps

2016

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“…According to Stigebrandt (2011), the use of stocking densities higher than the environmental carrying capacity negatively affects the growth rate of the farmed animals and water quality. Das, Jena, Mishra, and Pati (2012), Pawar, Jena, Das, and Bhatnagar (2009) and Pawar, Jena, and Das (2014) showed that the use of overnight water aeration significantly improved the growth and survival of the farmed animals in high density tanks. In addition to the use of nocturnal aeration of water, which is already a consolidated management among farmers, new strategies should be sought to control water quality and obtain better productive results in intensive aquaculture systems.…”

Section: Introductionmentioning

confidence: 99%

<b>Interaction between afternoon aeration and tilapia stocking density

Lima

Cavalcante

Rebouças

et al. 2016

Acta Sci. Anim. Sci.

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ABSTRACT. The present study aimed at determining the effects of the interaction between afternoon aeration and stocking density of Nile tilapia on variables of water and soil quality, growth performance and effluent quality. The experiment was a 3 x 2 factorial randomized block design, with three stocking densities (8, 12 and 16 fish per tank or 43.5, 65.3, and 87.0 g m -3 ) under two mechanical aeration regimes, absence (control; three replicates) and afternoon aeration (four replicates). The afternoon aeration was carried out from 12.00 a.m. up to 18.00 p.m. from the 3 rd week until the end of the experiment. Except for the 16-fish tanks, the lowest concentrations of total ammonia nitrogen were found in the tanks with higher density of fish provided with afternoon aeration. Nitrite concentrations were lower in the 8-fish aerated tanks. In intensive system, the afternoon aeration of the fish culture water is an efficient management of water quality to remove gaseous ammonia and nitrite from water, but it is not appropriate to remove hydrogen sulfide from water.Keywords: fish farming, total ammonia nitrogen, unionized ammonia, nitrite.Interação entre aeração vespertina e densidade de estocagem na criação de juvenis de tilápia RESUMO. O presente trabalho teve por objetivo determinar os efeitos da interação entre a aeração vespertina da água e a densidade de estocagem de juvenis de tilápia do Nilo sobre variáveis de qualidade de água, solo, desempenho zootécnico e qualidade de efluentes. O delineamento experimental adotado foi em blocos ao acaso, em arranjo fatorial 3 x 2. Havia três densidades de estocagem (8, 12 e 16 peixes por tanque ou 43,5; 65,3 e 87,0 g m -3, respectivamente), em dois regimes de aeração mecânica da água, ausência (controle; três repetições) e aeração vespertina (quatro repetições). A aeração vespertina da água ocorreu das 12 às 18 h, da terceira até a última semana de criação. Exceto pelos tanques com 16 peixes, menores concentrações de nitrogênio amoniacal total foram observadas nos tanques de maior densidade de estocagem providos de aeração vespertina. As concentrações de nitrito da água foram menores nos tanques com 8 peixes e aeração vespertina. A aeração vespertina da água de cultivo de peixes é um eficiente manejo de qualidade de água para remoção de amônia gasosa e nitrito da água em sistemas intensivos, não sendo indicado, entretanto, para remoção de gás sulfídrico da água.Palavras-chave: piscicultura, nitrogênio amoniacal total, amônia não-ionizada, nitrito.

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“…No clear pattern was seen for the variations of soil pH over time, an observation also made by Pawar et al (2009) in a carp study. On average, the pH of soil in the experimental tanks was 7.82 ± 0.24.…”

Section: Resultsmentioning

confidence: 74%

“…The DO 2 concentration of water can be reduced up to zero overnight without proper aeration. Pawar, Jena, Das, and Bhatnagar (2009) and Das, Jena, Mishra, and Pati (2012) have observed significant improvement in fish growth performance due to nocturnal aeration of water. However, despite its clear benefits, the nocturnal aeration of water has its limitations.…”

Section: Introductionmentioning

confidence: 99%

<b>Association between nocturnal and diurnal aeration in Nile tilapia rearing tanks

et al. 2018

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ABSTRACT. The present study has assessed the benefits of the association between nocturnal and diurnal aeration of water on Nile tilapia's culture tanks' water and soil quality, as well as to fish growth performance. There were control tanks without mechanical aeration. In the nocturnal tanks, the aeration was provided daily from 2200 up to 0600. The diurnal tanks were provided with aeration daily from 1000 up to 1800. In the nocturnal and diurnal tanks, the culture water was aerated from 1000 up to 0600. The concentration of NH 3 was significantly lower in the diurnal aerated, and nocturnal + diurnal aerated tanks when compared to the non-aerated tanks. The best water quality management to attain simultaneously high DO 2 and low NH 3 concentration was the nocturnal + diurnal aeration of water. The nocturnal + diurnal aeration of water has not shown any clear advantage on fish growth performance after 10 weeks when compared to the nocturnal aeration of water. It was concluded that the nocturnal + diurnal aeration of water is a water quality management superior to the nocturnal aeration because it achieves a better water quality Keywords: aquaculture, Oreochromis niloticus, water quality.Associação entre aeração noturna e diurna em tanques de cultivo de tilápia do Nilo RESUMO. O presente trabalho teve por objetivo determinar os benefícios da associação entre a aeração noturnal e diurna da água de tanques de cultivo da tilápia do Nilo, em relação à qualidade de água, do solo e do desempenho zootécnico. Havia tanques sem aeração; tanques noturnos, com aeração fornecida diariamente das 22 às 06h; tanques diurnos, com aeração fornecida diariamente das 10 às 18h; e tanques noturnos + diurnos, com aeração fornecida das 10 às 06h do dia seguinte. As concentrações de NH 3 da água de cultivo foram significativamente menores nos tanques diurnos e noturnos + diurnos, quando comparados aos tanques sem aeração. Nos tanques com aeração noturna e diurna se obteve, simultaneamente, elevadas concentrações de O 2 dissolvido na água e baixas concentrações de NH 3 . Embora a aeração noturna e diurna da água não tenha apresentado claras vantagens para o desempenho zootécnico após dez semanas de cultivo, concluiu-se que a associação da aeração noturna com a diurna é um manejo de qualidade de água superior à aeração apenas noturna por propiciar melhor qualidade de água.Palavras-chave: aquicultura, Oreochromis niloticus, qualidade de água.

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Influence of duration of aeration on growth and survival of carp fingerlings during high density seed rearing

Cited by 28 publications

References 10 publications

Effect of stocking density on water and soil quality, growth, production and profitability of farming Indian major carps

Effect of stocking density on water and soil quality, growth, production and profitability of farming Indian major carps

<b>Interaction between afternoon aeration and tilapia stocking density

<b>Association between nocturnal and diurnal aeration in Nile tilapia rearing tanks

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