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Fishes 2017, 2(2), 5; doi:10.3390/fishes2020005

Macronutrient Requirements of Silvery-Black Porgy (Sparidentex hasta): A Comparison with Other Farmed Sparid Species

South Iranian Aquaculture Research Center, P.O. Box 669 Ahwaz, Iran
Artemia and Aquatic Research Institute, Urmia University, 57135 Urmia, Iran
Institut de Recerca i Tecnologia Agroalimentaries, Centre de Sant Carles de la Rápita (IRTA-SCR), Unitat de Cultius Experimentals, 43540 Sant Carles de la Ràpita, Spain
Author to whom correspondence should be addressed.
Academic Editor: Francisco J. Moyano
Received: 31 January 2017 / Revised: 4 May 2017 / Accepted: 5 May 2017 / Published: 13 May 2017
(This article belongs to the Special Issue Nutritional Requirements in New Fish Species Under Culture)
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Silvery-black porgy (Sparidentex hasta) is recognized as one of the most promising fish species for aquaculture diversification in the Persian Gulf and the Oman Sea regions. In this regard, S. hasta has received considerable attention, and nutritional studies focused on establishing the nutritional requirements for improving diet formulation have been conducted during recent years. Considering the results from different dose–response nutritional studies on macronutrient requirements conducted in this species, it can be concluded that diets containing ca. 48% crude protein, 15% crude lipid, 15% carbohydrates and 20 KJ g−1 gross energy are recommended for on-growing S. hasta juveniles. In addition, the optimum essential amino acid profile for this species (expressed as g 16 g N−1), should be approximately arginine 5.3, lysine 6.0, threonine 5.2, histidine 2.5, isoleucine 4.6, leucine 5.4, methionine + cysteine 4.0 (in a diet containing 0.6 cysteine), phenylalanine + tyrosine 5.6 (in a diet containing 1.9 tyrosine), tryptophan 1.0 and valine 4.6. Moreover, the optimum dietary n-3 long chain polyunsaturated fatty acids and soybean lecithin are recommended to be 0.8% and 6%, respectively. The maximum replacement of fish meal with soy protein is recommended to be between 16.5% and 27.3%. In addition, different vegetal oil sources are also recommended for partial and almost complete replacement of fish oil in diets. Although the nutritional requirements in terms of macronutrients have been established under laboratory conditions, the analysis of the available literature indicate that future studies need to be conducted using a more holistic approach under intensive farming conditions in which different nutrients or additives need to be tested under different rearing conditions for refining nutrient requirements in this species. View Full-Text
Keywords: protein sources; lipids; fish meal substitution; essential amino acids; essential fatty acids; sobaity sea bream protein sources; lipids; fish meal substitution; essential amino acids; essential fatty acids; sobaity sea bream
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Torfi Mozanzadeh, M.; Marammazi, J.G.; Yaghoubi, M.; Agh, N.; Pagheh, E.; Gisbert, E. Macronutrient Requirements of Silvery-Black Porgy (Sparidentex hasta): A Comparison with Other Farmed Sparid Species. Fishes 2017, 2, 5.

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