Trace minerals in fish nutrition

Watanabe, Takeshi; Kiron, Viswanath; Satoh, Shuichi

doi:10.1016/s0044-8486(96)01503-7

Cited by 685 publications

(503 citation statements)

References 87 publications

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“…Similar to Iron, the flexible redox state of copper shows that it plays an important role in cellular respiration with cytochrome c oxidase as an important copper protein. Hence, copper is accepted as an essential element and the amount of daily requirements in the diets of fish are given as 15-60 μmol (1-4 mg) Cu kg -1 dry mass (Watanabe et al, 1997). On the other side, however, when copper is at excess levels, it can be toxic for fish and so for humans through the food chain.…”

Section: Discussionmentioning

confidence: 99%

“…Similar to copper, zinc is also known as an essential element due to its vital structural or catalytic importance in over 300 proteins, playing important roles on fish growth and reproduction, as well as on the immune system (Watanabe et al, 1997;Burry et al, 2003). Previous studies, reported zinc levels around 56.3 mg kg -1 in the muscle tissues of gilthead seabream Sparus aurata from Black Sea and the Aegean Sea (Uluozlu et al, 2007), and between 4.49-11.6 mg kg -1 in muscle tissues of gilthead seabream, Sparus aurata from Marmara, Aegean and the Mediterranean sea (Türkmen et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Manganese is reported to be an actor for the actions of some enzymes, being a structural component of some enzymes (Watanabe et al, 1997). Uluozlu et al (2007) Iron is known as an indispensable nutrient for living organisms.…”

Section: Discussionmentioning

confidence: 99%

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Monitoring of trace metals, biochemical composition and growth of Axillary seabream (Pagellus acarne Risso, 1827) in offshore Copper alloy net cage

et al. 2016

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The study was conducted to assess trace metal contents, biochemical composition and growth performance of axillary seabream (Pagellus acarne Risso, 1827) cultured in a copper alloy mesh cage. A total of 400 axillary seabream (initial mean weight: 176.0±14.0 g), a new candidate species for the Mediterranean aquaculture, were stocked into a high-density polyethylene frame gravity cage and fed a commercial seabream diet for a period of 6 months. At the end of the feeding trial, fish reached a final weight of 264.8±16.8 g with a weight increase of 88.8 g and a feed conversion rate of 2.51. Overall, relative growth rate, specific growth rate and feed conversion ratio were satisfactory and comparable to the pelagic fishes such as gilthead seabream or European seabass, which are presently the main fish species for the Mediterranean aquaculture industry. Trace elements in fish grown in copper alloy net cages over a 6-month period showed satisfactory results, as the metal concentrations in fish tissues such as liver, skin, muscle and gills were below the reported upper limits for human consumption, indicating that copper alloy net is an acceptable and safe material for finfish cage aquaculture. Furthermore, from the growth performance data obtained in the present study, it can be concluded that axillary seabream showed potential for cage farming, and thus is a promising new candidate for the Mediterranean aquaculture industry.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Monitoring of trace metals, biochemical composition and growth of Axillary seabream (Pagellus acarne Risso, 1827) in offshore Copper alloy net cage

et al. 2016

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“…Though, essential minerals described for other animals may also be important for fish, 7 macro minerals and 16 trace minerals have been demonstrated as essential in 1 or more animal species (Davis and Gatlin, 1996). Knowledge about trace elements in fish are mainly limited to Fe, Cu, Mn, Zn and Se (Davis and Gatlin, 1996;Watanbe et al, 1997), the fish requirement for these, Co and I is listed in Table 2.2.1. Watanbe et al (1997).…”

Section: Elementsmentioning

confidence: 99%

Energy dilution with α-cellulose in diets for Atlantic cod (Gadus morhua L.) juveniles — Effects on growth, feed intake, liver size and digestibility of nutrients

Lekva¹,

Hansen²,

Rosenlund³

et al. 2010

Aquaculture

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“…The eggs produced by broodstock of brook trout and rainbow trout fed fish meal diets lacking manganese contained only low levels of this trace metal and subsequently hatchability was poor. [6][7][8][9] So, the development of new methodologies that allow the reliable quantification of the metallic nutrients such as manganese, present at low concentrations in feeds, becomes fundamental in fish nutrition studies. In this context, the determination of metallic analytes in slurries by graphite furnace atomic absorption spectrometry shows that it is a robust technique.…”

Section: Introductionmentioning

confidence: 99%

Manganese determination by GFAAS in feces and fish feed slurries

Loureiro¹,

Saleh²,

Moraes³

et al. 2007

J. Braz. Chem. Soc.

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Neste trabalho, um método simples, rápido e sensível, é proposto para determinação de manganês em amostras de fezes e rações de peixes por espectrometria de absorção atômica em forno de grafite (GFAAS) utilizando-se a introdução direta de suspensões das amostras no tubo de grafite. Os limites de detecção (LOD) e de quantificação (LOQ) calculados em relação a 20 leituras do branco das suspensões (0,50 % m/v de fezes ou ração isentas de manganês) foram de 28 e 92 μg kg -1 para as suspensões padrão de fezes e de 34 e 110 μg kg -1 para as suspensões padrão de ração. O método proposto foi aplicado em estudos de biodisponibilidade de manganês em diferentes amostras de rações de peixes e os resultados mostraram-se de acordo com os resultados obtidos utilizando-se amostras previamente mineralizadas por digestões ácidas em forno de microondas. This paper presents a simple, fast and sensitive method to determine manganese in samples of feces and fish feed by graphite furnace atomic absorption spectrometry (GFAAS) by the direct introduction of slurries into the graphite tube. The limits of detection (LOD) and quantification (LOQ) calculated for 20 readings of the blank of the standard slurries (0.50 % m/v of feces or feed devoid of manganese) were 28 and 92 μg kg -1 for the standard feces slurries and 34 and 110 μg kg -1 for the standard feed slurries. The proposed method was applied in bioavailability studies of manganese in different fish feeds and their results proved compatible with those obtained for samples mineralized by acid digestion using microwave oven.

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Trace minerals in fish nutrition

Cited by 685 publications

References 87 publications

Monitoring of trace metals, biochemical composition and growth of Axillary seabream (Pagellus acarne Risso, 1827) in offshore Copper alloy net cage

Monitoring of trace metals, biochemical composition and growth of Axillary seabream (Pagellus acarne Risso, 1827) in offshore Copper alloy net cage

Energy dilution with α-cellulose in diets for Atlantic cod (Gadus morhua L.) juveniles — Effects on growth, feed intake, liver size and digestibility of nutrients

Manganese determination by GFAAS in feces and fish feed slurries

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