The effect of dietary docosahexaenoic acid (DHA) on growth, survival and pigmentation of California halibut Paralichthys californicus larvae (Ayres, 1810)

Vizcaíno-Ochoa, V; Lazo, Juan Pablo; Barón-Sevilla, Benjamín; Drawbridge, Mark

doi:10.1016/j.aquaculture.2010.02.022

Cited by 60 publications

(37 citation statements)

References 26 publications

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“…In contrast, under low primary production and concomitant PUFA deficiency, they were not catabolized but bioaccumulated by zooplankton. Such bioaccumulation may be important for organisms of higher trophic level, e.g., fish larvae, which need especially high amounts of PUFA for development and growth (Sargent et al 1999;Copeman et al 2002;Vizcaino-Ochoa et al 2010). Indeed, zooplankton cannot synthesize x-3 PUFA de novo, but it can accumulate in them due to the preferential catabolism of nonessential compounds.…”

Section: Maymentioning

confidence: 98%

Efficiency of transfer of essential polyunsaturated fatty acids versus organic carbon from producers to consumers in a eutrophic reservoir

et al. 2010

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One of the central paradigms of ecology is that only about 10% of organic carbon production of one trophic level is incorporated into new biomass of organisms of the next trophic level. Many of energy-yielding compounds of carbon are designated as 'essential', because they cannot be synthesized de novo by consumers and must be obtained with food, while they play important structural and regulatory functions. The question arises: are the essential compounds transferred through trophic chains with the same efficiency as bulk carbon? To answer this question, we measured gross primary production of phytoplankton and secondary production of zooplankton and content of organic carbon and essential polyunsaturated fatty acids of ω-3 family with 18-22 carbon atoms (PUFA) in the biomass of phytoplankton and zooplankton in a small eutrophic reservoir during two summers. Transfer efficiency between the two trophic levels, phytoplankton (producers) and zooplankton (consumers), was calculated as ratio of the primary production versus the secondary (zooplankton) production for both carbon and PUFA. We found that the essential PUFA were transferred from the producers to the primary consumers with about twice higher efficiency than bulk carbon. In contrast, polyunsaturated fatty acids with 16 carbon atoms, which are synthesized exclusively by phytoplankton, but are not essential for animals, had significantly lower transfer efficiency than both bulk carbon, and essential PUFA. Thus, the trophic pyramid concept, which implicitly implies that all the energy-yielding compounds of carbon are transferred from one trophic level to the next with the same efficiency of about on average 10%, should be specified for different carbon compounds.

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Section: Maymentioning

confidence: 98%

Efficiency of transfer of essential polyunsaturated fatty acids versus organic carbon from producers to consumers in a eutrophic reservoir

et al. 2010

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“…Novel oil products are the focus of considerable promising research (Vizcaino‐Ochoa et al. ; Codabaccus et al. ; Trushenski et al.…”

Section: Future Research Horizons In Aquaculture Nutritionmentioning

confidence: 99%

Thoughts for the Future of Aquaculture Nutrition: Realigning Perspectives to Reflect Contemporary Issues Related to Judicious Use of Marine Resources in Aquafeeds

Trushenski²,

2018

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In recent decades, aquaculture nutrition research has made major strides in identifying alternatives to the use of traditional marine‐origin resources. Feed manufacturers worldwide have used this information to replace increasing amounts of fish meal and fish oil in aquafeeds. However, reliance on marine resources remains an ongoing constraint, and the progress yielded by continued unidimensional research into alternative raw materials is becoming increasingly marginal. Feed formulation is not an exercise in identifying “substitutes” or “alternatives” but rather is a process of identifying different combinations of “complementary” raw materials—including fish meal, fish oil, and others—that collectively meet established nutrient requirements and other criteria for the aquafeed in question. Nutrient‐based formulation is the day‐to‐day reality of formulating industrially compounded aquafeeds, but this approach is less formally and explicitly addressed in aquaculture research and training programs. Here, we (re)introduce these topics and explore the reasons that marine‐origin ingredients have long been considered the “gold standards” of aquafeed formulation. We highlight a number of ways in which this approach is flawed and constrains innovation before delving into the need to assess raw materials based on their influence on aquafeed manufacturing techniques. We conclude with a brief commentary regarding the future funding and research landscape. Incremental progress may continue through the accumulation of small insights, but a more holistic research strategy—aligned with industry needs and focused on nutrient composition and ingredient complementarity—is what will spur future advancement in aquaculture nutrition.

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“…Therefore, it is necessary to evaluate the effect of different dietary DHA levels on M. amblycephala . The previous studies founded that the optimum addition of dietary DHA for some fish species was about 2–15 g/kg, including California halibut (Paralichthys californicus) (Vizcaíno‐Ochoa, Lazo, Barón‐Sevilla, & Drawbridge, ), meagre (Argyrosomus regius) (Campoverde & Estevez, ), striped trumpeter (latris lineata) (Bransden et al, ) and barramundi (Lates calcarifer) (Glencross & Rutherford, ). In this study, the optimum DHA level of M. amblycephala was estimated to be 1.3–2.3 g/kg based on the result of SGR.…”

Section: Discussionmentioning

confidence: 99%

Effects of dietary docosahexaenoic acid on growth performance, fatty acid profile and lipogenesis of blunt snout bream ( Megalobrama amblycephala )

et al. 2019

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Six diets were designed to investigate the effects of dietary docosahexaenoic acid (22:6n‐3; DHA) levels (0.5, 1.3, 2.3, 4.2, 8.1 and 15.9 g/kg diets) on growth performance, fatty acid profile and expression of some lipogenesis‐related genes of blunt snout bream (Megalobrama amblycephala). Fish (average weight: 26.40 ± 0.11 g) were randomly fed one of six diets for 8 weeks. Results indicated that the final body weight (FBW) and specific growth rate (SGR) of fish fed 1.3 g/kg DHA were significantly higher than other groups except for the 2.3 g/kg DHA (p < .05). Compared with other groups, the number of lipid droplet clusters of the liver stained with oil red O in the 2.3 g/kg DHA group was the highest, which was consistent with the lipid contents of whole body and liver. The DHA proportion in liver and muscle significantly increased with the increasing dietary DHA levels (p < .05), which reflected fatty acid profiles of diets. The highest mRNA expressions of acetyl‐CoA carboxylase α (ACCα), fatty acid synthase (FAS) and sterol regulatory element‐binding protein‐1 (SREBP‐1) occurred in the 1.3 g/kg DHA group, followed by 2.3 g/kg DHA. In summary, the supplementation of 1.3–2.3 g/kg DHA could improve growth performance and lipogenesis, and the dietary DHA could improve DHA and PUFA proportion in liver and muscle.

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The effect of dietary docosahexaenoic acid (DHA) on growth, survival and pigmentation of California halibut Paralichthys californicus larvae (Ayres, 1810)

Cited by 60 publications

References 26 publications

Efficiency of transfer of essential polyunsaturated fatty acids versus organic carbon from producers to consumers in a eutrophic reservoir

Efficiency of transfer of essential polyunsaturated fatty acids versus organic carbon from producers to consumers in a eutrophic reservoir

Thoughts for the Future of Aquaculture Nutrition: Realigning Perspectives to Reflect Contemporary Issues Related to Judicious Use of Marine Resources in Aquafeeds

Effects of dietary docosahexaenoic acid on growth performance, fatty acid profile and lipogenesis of blunt snout bream ( Megalobrama amblycephala )

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