Effects of dietary phosphorus and calcium level on growth and skeletal development in rainbow trout (Oncorhynchus mykiss) fry

Fontagné, Stéphanie; Silva, Nádia; Bazin, Didier; Ramos, A. M. Ruano; Aguirre, Pierre; Surget, Anne; Abrantes, António; Kaushik, Sadasivam; Power, Deborah M.

doi:10.1016/j.aquaculture.2009.09.022

Cited by 54 publications

(63 citation statements)

References 33 publications

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“…Survival was not affected by dietary phosphorus levels (P>0.05). Fontagné et al (2009) found in a radiographic study that rainbow trout (Oncorhynchus mykiss) fingerlings fed a diet deficient in phosphorus (5 g/kg total phosphorus or zero available phosphorus) showed high incidence of vertebral abnormalities.…”

Section: Resultsmentioning

confidence: 99%

Dietary phosphorus requirement of pejerrey fingerlings (Odontesthes bonariensis)

et al. 2014

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-To determine the available phosphorus requirement of pejerrey fish, four semi-purified diets were formulated to contain increasing available phosphorus levels (0.90, 2.7, 5.7 and 8.3 g/kg). Each diet was assigned to groups of 10 fish with average weight of 1.26±0.17 g, distributed into a completely randomized design with four treatments and four replications. Fish were fed at a rate of 10% total biomass four times a day for 60 days. The parameters productive performance, body chemical composition and mineral composition of bones and scales were evaluated. The best productive performance of fingerlings was obtained with the diet containing 4.3 g/kg available phosphorus. The average level of 6.3 g/kg available phosphorus promotes better mineralization of bones and scales in pejerrey fish.

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Section: Resultsmentioning

confidence: 99%

Dietary phosphorus requirement of pejerrey fingerlings (Odontesthes bonariensis)

et al. 2014

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“…In juvenile Atlantic salmon Salmo salar and rainbow trout, it has been observed that continual feeding on a P-deficient diet eventually leads to poor bone mineralization and deformities (Vielma & Lall 1998, Fontagnè et al 2009, Fjelldal et al 2012). This phenomenon has also been observed in large fish.…”

Section: Discussionmentioning

confidence: 99%

Reducing geosmin off-flavor compounds and waste outputs through dietary phosphorus management in rainbow trout aquaculture

Sarker¹,

Pilote²,

Auffret³

et al. 2014

Aquacult. Environ. Interact.

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The aquaculture industry has long recognized the need to reduce phosphorus (P) waste outputs associated with environmental impact, and reduce off-flavor producing compounds, which can impact the quality of the fish product. This study was undertaken to investigate the effects of dietary high P (HP) and low P (LP) on growth, nutrient digestibility, P retention, and P loading as well as their correlation to the synthesis of geosmin-associated off-flavor in a recirculating aquaculture system of rainbow trout Oncorhynchus mykiss. The above diets were fed to quadruplicate tanks of rainbow trout (average mass ± SD: 127.4 ± 3.1 g) for 84 d. Results showed that the effects of the HP and LP diets on growth and P retention were not significantly different. While the apparent digestibility of P and other nutrients were higher in fish fed the LP diet, P waste outputs and geosmin levels in the fillets of fish were higher in fish fed the HP diet. Magnesium (Mg 2+ ), potassium (K + ) and zinc (Zn 2+ ) concentrations in tank water were significantly lower in fish fed the HP diet than the LP diet in most of the sampling events. Furthermore, the tank water geosmin concentration was not strongly proportionally correlated with tank water-soluble P concentration for both the LP and HP diets. There was a strong proportional linear relationship between the geosmin concentration in tank water and in trout fillet for both the LP and HP diets. Results suggest that off-flavor contents in fish fillets and water were related to the dietary P level and metabolic P waste outputs into the system, findings that have implications for the formulation of sustainable diets for rainbow trout.

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“…Finally, the third hypothesis is that it could be caused by differences of food source between reared larvae and wild-captured larvae. Particularly, calcium deficiency at the food source induces a delay in the ontogeny of skeletal development without affecting final bone mineralization (Fontagné et al 2009). In addition, the different fixatives, formalin or alcohol, may have reduced or removed some pigmentation.…”

Section: Discussionmentioning

confidence: 99%

Osteological development of wild-captured larvae and a juvenile Sebastes koreanus (Pisces, Scorpaenoidei) from the Yellow Sea

Kim

2016

Fish Aquatic Sci

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The osteological development in Sebastes koreanus is described and illustrated on the basis of 32 larvae [6.11-11.10 mm body length (BL)] and a single juvenile (18.60 mm BL) collected from the Yellow Sea. The first-ossified skeletal elements, which are related to feeding, swimming, and respiration, appear in larvae of 6.27 mm BL; these include the jaw bones, palatine, opercular, hyoid arch, and pectoral girdle. All skeletal elements are fully ossified in the juvenile observed in the study. Ossification of the neurocranium started in the frontal, pterotic, and parietal regions at 6.27 mm BL, and then in the parasphenoid and basioccipital regions at 8.17 mm BL. The vertebrae had started to ossify at~7.17 mm BL, and their ossification was nearly complete at 11.10 mm BL. In the juvenile, although ossification of the pectoral girdle was fully complete, the fusion of the scapula and uppermost radial had not yet occurred. Thus, the scapula and uppermost radial fuse during or after the juvenile stage. The five hypurals in the caudal skeleton were also fused to form three hypural elements. The osteological results are discussed from a functional viewpoint and in terms of the comparative osteological development in related species.

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Effects of dietary phosphorus and calcium level on growth and skeletal development in rainbow trout (Oncorhynchus mykiss) fry

Cited by 54 publications

References 33 publications

Dietary phosphorus requirement of pejerrey fingerlings (Odontesthes bonariensis)

Dietary phosphorus requirement of pejerrey fingerlings (Odontesthes bonariensis)

Reducing geosmin off-flavor compounds and waste outputs through dietary phosphorus management in rainbow trout aquaculture

Osteological development of wild-captured larvae and a juvenile Sebastes koreanus (Pisces, Scorpaenoidei) from the Yellow Sea

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