Intake of magnesium from water by freshwater tilapia fed on a low-Mg diet

Velden, J.A. van der; Kolář, Z.; Flik, G.

doi:10.1016/0300-9629(91)90242-5

Cited by 20 publications

(7 citation statements)

References 6 publications

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“…In rainbow trout, Mg deficiency also causes calcinosis of the kidney, vertebral deformity and degeneration of muscle fibers and epithelial cells of the pyloric cecum and gill filaments [ 422 , 429 ]. A low concentration of Mg in water reduced the Mn concentration of eggs in carp, which reduced the hatchability of eggs and survival of offspring and also caused deformities and tissue necrosis [ 430 ].…”

Section: Macromineralsmentioning

confidence: 99%

Nutrition and Metabolism of Minerals in Fish

Lall

Kaushik

2021

Animals

191

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Aquatic animals have unique physiological mechanisms to absorb and retain minerals from their diets and water. Research and development in the area of mineral nutrition of farmed fish and crustaceans have been relatively slow and major gaps exist in the knowledge of trace element requirements, physiological functions and bioavailability from feed ingredients. Quantitative dietary requirements have been reported for three macroelements (calcium, phosphorus and magnesium) and six trace minerals (zinc, iron, copper, manganese, iodine and selenium) for selected fish species. Mineral deficiency signs in fish include reduced bone mineralization, anorexia, lens cataracts (zinc), skeletal deformities (phosphorus, magnesium, zinc), fin erosion (copper, zinc), nephrocalcinosis (magnesium deficiency, selenium toxicity), thyroid hyperplasia (iodine), muscular dystrophy (selenium) and hypochromic microcytic anemia (iron). An excessive intake of minerals from either diet or gill uptake causes toxicity and therefore a fine balance between mineral deficiency and toxicity is vital for aquatic organisms to maintain their homeostasis, either through increased absorption or excretion. Release of minerals from uneaten or undigested feed and from urinary excretion can cause eutrophication of natural waters, which requires additional consideration in feed formulation. The current knowledge in mineral nutrition of fish is briefly reviewed.

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Section: Macromineralsmentioning

confidence: 99%

Nutrition and Metabolism of Minerals in Fish

Lall

Kaushik

2021

Animals

191

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“…It was demonstrated that rainbow trout (Shearer & Asg ard 1992) and tilapia (Van Der Velden et al 1991) were able to utilise waterborne magnesium to fulfil the requirement for growth when fed low Mg diets for periods up to 4 weeks. Mg uptake from water is dependent on the Mg concentration of water (Van Der Velden et al 1991) and may not be sufficient to meet the need of a fast-growing fish on a long term (Dabrowska et al 1991). Moreover, a recent study in gibel carp (Han et al 2012) conducted in water containing 10-12 mg Mg L À1 reports a lack of response in growth to increasing levels of dietary magnesium.…”

Section: Mineral Concentration Of Rearing Watermentioning

confidence: 99%

“…It was demonstrated that rainbow trout (Shearer & Åsgård ) and tilapia (Van Der Velden et al . ) were able to utilise waterborne magnesium to fulfil the requirement for growth when fed low Mg diets for periods up to 4 weeks. Mg uptake from water is dependent on the Mg concentration of water (Van Der Velden et al .…”

Section: Mineral Interactionsmentioning

confidence: 99%

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Mineral requirements of fish: a systematic review

Prabhu

Schrama

Kaushik

2014

Reviews in Aquaculture

204

129

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Meta-analysis of literature data on mineral and trace element requirements of fish was performed with the major objectives of identifying appropriate response criteria and the factors affecting the minimal dietary inclusion levels. The primary data set included 25 studies on available P, 20 on Ca, 24 on Mg, 5 on K, 37 for Zn, 23 for Se, 19 for Mn, 16 for Fe and 13 for Cu. Broken line regression analysis with linear plateau model (P, Ca, Mg and K) or two-linear line model (Zn, Cu, Fe, Mn and Se) was used for determining the minimal dietary inclusion levels. Vertebral mineral concentration (P, Ca, Zn and Mn), whole-body mineral levels (Mg, K and Fe) and hepatic enzyme activity (Se) were found to be the most appropriate criteria for the respective minerals analysed. In general, weight gain as the criterion resulted in a lower estimate (by 18-42%) than those obtained using whole-body or vertebral mineral concentrations as response criteria. The analysis also showed that different fish species do not show large variations in the mineral and trace element concentrations in the whole body and tissues. Factors such as species group and digestive physiology, type of experimental diet used and dietary interactions, type of mineral source and mineral concentration of water were found to affect the minimal dietary inclusion levels of certain minerals. Besides the meta-analysis, research needs in mineral nutrition of fish with reference to growing changes in dietary strategies and rearing systems are discussed.

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“…More specifically, there is the need for higher dietary Mg supplementation in the case of purified diets for fast-growing, juvenile surubim. It may also indicate an increased rate of Mg intake from water, the phenomena described earlier in tropical fish, tilapia (Van der Velden, Kolar & Flik 1991).…”

Section: Fatty Acidsmentioning

confidence: 68%

Growth, body chemical composition and trypsin activity of South American catfish, surubim (Pseudoplatystomasp.) juveniles fed different dietary protein and lipid levels

et al. 2012

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To evaluate protein and lipid requirement of South American catfish surubim (Pseudoplatystoma sp.) juveniles, nine semi‐purified diets containing three levels of protein (40%, 45% and 50%) and three levels of lipid (12%, 16% and 20%) were tested. After 8‐week feeding trial, body weight increase averaged 2124.3 ± 295.7%. Growth performance was significantly affected by dietary level of protein (P < 0.05). At the 40% protein level, increasing level of dietary lipid had a positive effect on final individual mean weight (protein sparing effect). Whole body protein and moisture contents were affected by the dietary level of lipid (P < 0.05). Whole body lipid content positively correlated with the level of dietary lipid (P < 0.05). Cannibalism related mortality was observed despite rearing fish in 24 h dark. Fatty acid composition of fish was affected by the dietary lipid level (P < 0.05). Polyunsaturated fatty acids increased with the increasing level of dietary lipid while saturated fatty acids and monounsaturated fatty acids decreased. Trypsin activity in the digestive tract of surubim was influenced by dietary levels of protein and lipid (P < 0.05). Our preliminary results suggest that the optimum protein/lipid ratio might be close to 45/16% for surubim juveniles.

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Intake of magnesium from water by freshwater tilapia fed on a low-Mg diet

Cited by 20 publications

References 6 publications

Nutrition and Metabolism of Minerals in Fish

Nutrition and Metabolism of Minerals in Fish

Mineral requirements of fish: a systematic review

Growth, body chemical composition and trypsin activity of South American catfish, surubim (Pseudoplatystomasp.) juveniles fed different dietary protein and lipid levels

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