Preliminary estimation of tropical ornamental fish metabolite production rates

Ng, W.J.; Kho, Kevin; Ong, Say Leong; Sim, Timothy; Ho, J.M.; Tay, S.H.

doi:10.1016/0044-8486(93)90374-8

Cited by 12 publications

(8 citation statements)

References 4 publications

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“…In our study, the mean HER for both sizes of golden shiners increased significantly (P Ͻ 0.01) as temperature increased from 15-25ЊC (Figures 1, 2). Our finding that smaller fish produce ammonia at a higher rate than larger fish is in agreement with the findings of Cai and Summerfelt (1992), Ng et al (1993), and Speece (1973). Within individual lots of fish, there was no consistent trend in HER over time (Figure 2).…”

Section: Discussionsupporting

confidence: 93%

“…Cai and Summerfelt (1992) indicated that with increasing fish size, the weight-specific ammonia excretion rate for walleyes decreased from 22 to 12 mg/ kg/h at 20ЊC and from 29 to 9 mg/kg/h at 25ЊC. Ng et al (1993) reported the ammonia formation rates for several tropical ornamental fish (common carp, rosy barb Puntius conchonius, golden mbuna Pseudotropheus auratus, and goldfish Carassius auratus) of different sizes and indicated that for the same total mass of fish, smaller and younger fish have a higher metabolite production rate than their larger and older counterparts.…”

mentioning

confidence: 96%

“…The ammonia excretion rates of fish are affected by dissolved oxygen (DO), suspended solids, chemical oxygen demand (COD), biochemical oxygen demand (BOD), water temperature, and fish size (Speece 1973;Liao and Mayo 1974;Ng et al 1993;Yager and Summerfelt 1993). Temperature effects on ammonia excretion rates were shown in bluegill Lepomis macrochirus (Savitz 1969), common carp Cyprinus carpio (Ogino et al 1973), plaice Pleuronectes platessa (Jobling 1981), and fingerling walleye Sander vitreus (formerly Stizostedion vitreum) (Cai and Summerfelt 1992;Forsberg and Summerfelt 1992a).…”

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confidence: 97%

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Effects of Temperature and Size on Ammonia Excretion by Fasted Golden Shiners

et al. 2004

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The golden shiner Notemigonus crysoleucas is the major species of baitfish raised and sold in the United States. They are shipped in trucks from large farms to distributors up to 2,500 km distant. The costs associated with shipping could be greatly reduced if truck loading were increased, but higher densities of fish elevate ammonia concentrations to detrimental levels. In our work, we have simulated live hauling conditions to measure the ammonia excretion rates of golden shiners at 15, 20, and 25°C. The experiments were conducted for 24 h in three recirculating systems after fingerling golden shiners were fasted and acclimated for 2 d. The experiment was repeated four times using different lots and sizes of golden shiners. The results indicated that there were no significant differences in the hourly ammonia excretion rates (HER) between two lots of same‐size golden shiners. The hourly ammonia excretion rates were inversely proportional to fish weight and increased with temperature. The average HER for all sizes of fish ranged from 2.9 to 7.4 g NH3‐N/kg fish/h at 15°C, 5.2–11.2 g NH3‐N/kg fish/h at 20°C, and 6.2–15.0 g NH3‐N/kg fish/h at 25°C. The results of this study will be used to design ammonia control systems to safely increase fish density on commercial fish hauling trucks.

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Section: Discussionsupporting

confidence: 93%

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confidence: 96%

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Effects of Temperature and Size on Ammonia Excretion by Fasted Golden Shiners

et al. 2004

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“…Ng et al (1992) evaluated water quality within a recirculating system for tropical ornamental fish culture which included goldfish as one of their species. Further, Ng et al (1993) provided an approximate estimation for determining metabolic production rates for tropical ornamental fish. Watson and Hill (2006) presented design criteria for recirculating, marine ornamental production systems.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)

et al. 2010

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In the present study, a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS) has been developed. The GRAS consisted of a culture tank, a screen filter and a foam fractionator for removal of particulate and dissolved solids and a trickling filter for conversion of ammonium-and nitrite-nitrogen to relatively harmless nitrate-nitrogen. The culture of goldfish at a stocking density of 1.08 kg/m 3 was continued for a period of two and half months. Based on mass balance analysis of ammonium-and nitrate-nitrogen and assuming the trickling filter to be a plug flow reactor, a model was formulated to determine the necessary recirculation flow rate at different times of culture for maintaining the major nutrients, viz., ammonium-and nitrate-nitrogen below their permissible limits. The model was calibrated and validated using the real time data obtained from the experimental run. The high values of coefficient of determination and low values of root mean square error show the effectiveness of the model. Keywords: Goldfish; recirculating aquaculture system; plug flow reactor.Modelagem matemática do balanço de nutrientes de um sistema de aquicultura de circulação para o "Goldfish" (Carassius auratus Linn.) RESUMONo presente estudo, um sistema (GRAS) de recirculação para a aquicultura do "goldfish" (Carassius auratus Linn.) foi desenvolvido. O GRAS foi composto por um tanque de cultura, um filtro de tela com um fracionador de espuma para a remoção de partículas e de sólidos dissolvidos e um filtro biológico para a conversão do nitrogênio na forma de amônio e nitrito para nitrogênio relativamente inofensivo na forma de nitrato. A cultura do "goldfish" em uma densidade de 1,08 kg/m 3 foi mantida por um período de dois meses e meio. Com base na análise do balanço de massa do nitrogênio na forma de amônio e nitrato e assumindo que o filtro biológico funciona como um reator de interrupção de fluxo, um modelo foi formulado para determinar a vazão de recirculação necessária nas diferentes fases da cultura para a manutenção dos principais nutrientes, especialmente, observando-se se o nitrogênio na forma de amônio e de nitrato são mantidos abaixo dos seus limites admissíveis. O modelo foi calibrado e validado com os dados obtidos em tempo real da execução do experimento. Os altos valores do coeficiente de determinação e os baixos valores do erro quadrático médio mostram a eficácia do modelo.Palavras-chave: Goldfish; sistema de recirculação em aquicultura; reator de fluxo em pistão. TANVEER, M.; NAIR, S. P. S.; MOULICK, S.; MUKHERJEE, C. K. Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS).

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“…Some species, such as the ruby barb (Puntius nigrofasciatus), a voracious and indiscriminate feeder, prefers live feed to artificial feeds (Weerasooriya et al, 1999).Ornamental fish in captivity need to utilise their dietary protein with the utmost efficiency, as the breakdown products of protein metabolism (mainly ammonia) will directly pollute their living environment (Pannevis, 1993;Ng et al, 1993;Earle, 1995;Pannevis and Earle, 1995). As fish cannot synthesize these pigments, they rely on dietary supply of carotenoids to achieve their natural skin pigmentation, one of the most important quality criteria informing the market value of ornamental fish (Pariapatananont et al, 1999;Lovell, 2000;Gouveia et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Growth and pigmentation development efficiencies in fantail guppy, Poecilia reticulata fed with commercially available feeds

Mandal¹,

Mukherjee²,

Banerjee³

2010

ABJNA

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The commercial value of ornamental fish is primarily dependent on their external body colouration. Fade coloured fish fails to attract the interest of the buyers. In the present study an experiment were conducted to evaluate the efficacy of four types of feed (Living tubifex, Dried tubifex, Dried Daphnia and Prepared granulated feed) in the rearing of fantail guppy. Carotenoid content of the feed used, caudal fin and muscle of the fish and specific growth rate (SGR) of the fish were also analyzed. Results showed that the fantail guppy utilized the live organisms more efficiently than the artificial diet. Results are also encouraging because the fantail guppy became more brightly colourful which fed the carotenoid rich feed in comparison to the types of feed. Living tubifex was proved to be the best feed for guppy for increasing the growth and colouration.

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Preliminary estimation of tropical ornamental fish metabolite production rates

Cited by 12 publications

References 4 publications

Effects of Temperature and Size on Ammonia Excretion by Fasted Golden Shiners

Effects of Temperature and Size on Ammonia Excretion by Fasted Golden Shiners

Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)

Growth and pigmentation development efficiencies in fantail guppy, Poecilia reticulata fed with commercially available feeds

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