Nitrogen transformations and balance in channel catfish ponds

Gross, Amit; Boyd, Claude E.; Wood, C. W.

doi:10.1016/s0144-8609(00)00062-5

Cited by 151 publications

(101 citation statements)

References 26 publications

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“…6) In general, however, it should be noted that the FCR for mitten crab, irrespective of the feed type used was considerably higher (therefore, poorer rate of food conversion) than those recorded for finfish farming practices (Lemarié et al 1998;Gross et al 2000;Yi et al 2003;Phan et al 2009;Bunlipatanon et al 2014), and or for shrimp farming practices around the world (Hopkins et al 1993;Briggs and Funge-Smith, 1994;Thakur and Lin, 2003;Sahu et al 2013). It is therefore evident that considerable improvements have to be brought about in commonly used feeds and feed management in mitten crab culture.…”

Section: Feed Types and Feed Managementmentioning

confidence: 99%

Sustainable farming practices of the Chinese mitten crab (Eriocheir sinensis) around Hongze Lake, lower Yangtze River Basin, China

Wang

Liu

Zhang³

et al. 2015

Ambio

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Results of a survey of 156 Chinese mitten crab (Eriocheir sinensis) grow-out farms around Hongze Lake (118.48-118.72°E; 33.36-33.38°N) are reported. Area farmed has remained relatively unchanged but production (59 932 t in 2012) increased steadily over the last 7 years, indicative of the viability and sustainability of the farming system that has gradually replaced intensive Chinese major carp polyculture around Hongze Lake. Results showed that production range was 135-2400 kg ha -1 cycle -1 (mean 1144 ± 34). Crab yields correlated linearly to stocking density and conformed to a normal distribution curve, with 66.7 % of farms yielding 900 kg ha -1 cycle -1 or more. Yield was negatively correlated to pond size and capture size (p\0.01), and farms with macrophyte coverage rate lower than 30 % of water surface were significantly (p\0.05) lower than those exceeding 30 %.

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Section: Feed Types and Feed Managementmentioning

confidence: 99%

Sustainable farming practices of the Chinese mitten crab (Eriocheir sinensis) around Hongze Lake, lower Yangtze River Basin, China

Wang

Liu

Zhang³

et al. 2015

Ambio

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“…Pond production systems in Southern Asian countries are becoming increasingly reliant on external resources (feed, fertilizers) to supplement or stimulate autochthonous food production for pond fish. In most pond production systems, only about 15-30% of nutrient inputs is converted into harvestable products, the remainder being lost to the sediments, effluent water and the atmosphere (Acosta-Nassar et al, 1994;Gross et al, 2000). Intensive pond production systems are also reliant on the environment at large to disperse and assimilate wastes (Beveridge and Phillips, 1993).…”

Section: Introductionmentioning

confidence: 99%

The effects of artificial substrates on freshwater pond productivity and water quality and the implications for periphyton-based aquaculture

Äzim¹,

Wahab

Verdegem³

et al. 2002

Aquatic Living Resources

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“…According to Gross, Boyd, and Wood (1999), NH 3 volatilization can withdraw a significant amount of ammonia from water. Gross et al (2000) has observed that 12.5% of the total ammonia in American catfish tanks was removed by volatilization. Figure 2.…”

Section: Resultsmentioning

confidence: 99%

“…Besides, the mechanical aerators can be operated during the daylight to prevent the thermal stratification of water, which can cause anoxia in the pond bottom. Additionally, the use of the aerators in the daylight can reduce the concentrations of ammonia by volatilization (Gross, Boyd, & Wood, 2000), as well as it can prevent the dangerous oversaturation of water with DO 2 . The cost of aeration is relatively small compared to the value of the aquaculture crop, generally not exceeding 10% of that value (Boyd, 1998).…”

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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Nitrogen transformations and balance in channel catfish ponds

Cited by 151 publications

References 26 publications

Sustainable farming practices of the Chinese mitten crab (Eriocheir sinensis) around Hongze Lake, lower Yangtze River Basin, China

Sustainable farming practices of the Chinese mitten crab (Eriocheir sinensis) around Hongze Lake, lower Yangtze River Basin, China

The effects of artificial substrates on freshwater pond productivity and water quality and the implications for periphyton-based aquaculture

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

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