Amino Acid Requirements of Gilthead Bream (Sparus aurata) Juveniles

Gaber, Magdy M.; Salem, Mohamed El‐S.; Zaki, M. A.; Nour, A. M.

doi:10.4236/wjet.2016.43b004

Cited by 7 publications

(4 citation statements)

References 20 publications

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“…A new diet must ensure the welfare of the fish and healthy digestive system, because it is fundamental for good performance. The ideal diet would have an essential amino acids (EAA) profile similar to the amino acid composition of the fish (Akiyama et al, 1997; Gaber et al, 2016). It is known that the conventional feed in aquaculture is done with FM; therefore, the ideal alternative to FM should take into account that the composition of high‐quality FM contains: 66%–74% crude protein, 8%–11% crude lipids and <12% ash (Heuzé et al, 2015).…”

Section: Alternative Stuffsmentioning

confidence: 99%

Review on alternative meals for gilthead seabream, Sparus aurata

Porcino

Genovese

2022

Aquaculture Research

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Different raw materials are routinely used in aquaculture feeds to satisfy the dietary nutrients required by aquaculture species. There are several components that should be taken into account in the evaluation of a particular ingredient in feed formulation, such as digestibility, palatability and nutrient utilization and interference. The aim of this review was to produce a global overview about the alternative to fish meal and fish oil for gilthead sea bream diets in aquaculture. Particular attention was given to the effect on gut health. Moreover, the information collected in this review might be used as a tool in fine‐tuning of new diets for gilthead seabream. The parameters reported in works are not often standardized, and in some works, not all parameters are present; therefore, it is difficult to compare different trials. For this reason, we think that the collection of these data may help researchers to standardize in the future of the parameters necessary to evaluate alternative protein and lipid stuffs for gilthead seabream.

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Section: Alternative Stuffsmentioning

confidence: 99%

Review on alternative meals for gilthead seabream, Sparus aurata

Porcino

Genovese

2022

Aquaculture Research

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“…Dietary histidine has been reported to reduce body fat in several fish species [60,67]. Since histidine deficiency causes reduced growth and cataract, it is necessary to ensure the optimum inclusion of dietary histidine to improve the fish growth performance [86][87][88][89][90][91][92][93][94][95][96][97][98] [Table 1].…”

Section: Effects On Body Compositionmentioning

confidence: 99%

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2019

OFOAJ

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Availability of nutritionally balanced commercial feeds is essential in producing healthy, high-quality aquatic animals. Protein is the most important component of aquaculture feeds. Fish require not only a minimum level of protein but also that the essential amino acids are balanced to meet the requirements of each single one. Histidine is an essential amino acid with several functions including protein synthesis, tissue formation and repair as well as maintenance of osmoregulation and myelin sheaths. It also regulates the immune system and acts as antioxidant in fish. Histidine deficiency depresses growth performance and feed utilization. If in excess, it causes disruption of the balance of dietary amino acids leading to toxicity or extensive necrosis in the epithelial cells. Furthermore, histidine serves as an important antioxidant and buffer in various organs of several fish species. In aquaculture, extensive research has been carried out to optimize the levels of histidine in the commercial diets for many fish species. Providing adequate levels of this amino acid is critically important for fish growth. Currently, available data suggest a wide variation in histidine requirements of different species ranging between 0.89-3.54% on protein basis.

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“…In gilthead seabream, the dietary Met requirement was estimated to range between 2.4 and 2.8 g/16 g N (Gaber et al 2016; Marcouli et al, 2005; Peres and Oliva‐Teles 2013), and the total sulfur amino acid requirement to be around 3.07 g/16 g N (Marcouli et al 2005). However, to our knowledge, no information is available on the efficacy of different Met sources in this species.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of dietary methionine sources on growth performance and antioxidant potential of gilthead seabream juveniles reared at high water temperature

Vieira,

Magalhães,

Martins

et al. 2023

J World Aquaculture Soc

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Methionine (Met) is one of the most limiting essential amino acids in aquafeeds, and different commercial feed‐grade Met sources are available for diet supplementation, namely L‐Met, DL‐Met, and hydroxy‐Met (OH‐Met). In this work, we compared the bioefficacy of OH‐Met and DL‐Met as diet supplements for gilthead seabream (Sparus aurata) juveniles reared at normal (22°C) and high (29°C) water temperatures. Two isoproteic (50%) and isolipidic (20%) practical diets (24% fish meal; 6% fish oil) were formulated to contain 1% Met and were supplemented with 0.2% DL‐Met (diet DL‐Met) or OH‐Met (diet OH‐Met). The diets were fed to triplicate groups of fish with an initial body weight of 13 g for 78 days. Growth performance and N retention (%) were higher at 29°C. However, feed efficiency, protein efficiency ratio, and hepatic and visceral indexes were higher at 22°C. Hepatic oxidative stress indicators were not affected by dietary Met source. In the muscle, however, oxidative stress index and lipid peroxidation were lower in fish fed the OH‐Met diets. Overall, DL‐Met and OH‐Met proved to be similarly effective as dietary methionine sources for gilthead seabream, while OH‐Met seemed to be more effective in reducing oxidative stress in fish reared at high temperatures.

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Amino Acid Requirements of Gilthead Bream (Sparus aurata) Juveniles

Cited by 7 publications

References 20 publications

Review on alternative meals for gilthead seabream, Sparus aurata

Review on alternative meals for gilthead seabream, Sparus aurata

Untitled

Evaluation of dietary methionine sources on growth performance and antioxidant potential of gilthead seabream juveniles reared at high water temperature

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