Lipid dynamics during early development of Hippocampus guttulatus seahorses: Searching for clues on fatty acid requirements

Faleiro, Filipa; Narciso, Luı́s

doi:10.1016/j.aquaculture.2010.07.005

Cited by 42 publications

(31 citation statements)

References 42 publications

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“…Moreover, the concentrations of DHA drastically decreased during embryogenesis in all treatments especially during transition between Day 30 and hatching day. Similar results also reported during early development of seahorse ( Hippocampus guttulatus ) (Faleiro and Narciso, ). These results suggest that DHA is one of the main substrates for energy production purposes in O. mykiss during embryogenesis.…”

Section: Discussionsupporting

confidence: 88%

Replacing Dietary Fish Oil with Vegetable Oil Blends in Female Rainbow Trout Brood Stock Does Not Affect Breeding Quality

Agh

Jafari

Jalili

et al. 2019

Lipids

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To determine the effects of replacing fish oil (FO) with a mixture of vegetable oils (VO) in plant protein‐rich diets on reproductive performance, the fatty acid profile of embryos as well as health indices of female rainbow trout (Oncorhynchus mykiss) brooders (initial mean body weight, 1.8 ± 0.1 kg), a 3‐month feeding trial was conducted. Four isoproteic (ca. 42%) and isoenergetic (ca. 20 MJ/kg) diets were formulated in which 50% (FO50/VO50), 75% (FO25/VO75), and 100% (VO100) of FO were replaced by a mixture of VO, whereas the control diet (FO100) was prepared with FO as the major source of lipid. Fish fed the VO100 had the lowest fertilization (73.0 ± 2.5%), survival at eyed‐embryo stage (62.5 ± 5.0%), and hatching rate (56.0 ± 4.7%) rates. Brood fish fed the FO50/VO50, FO25/VO50, and VO100 diets had higher levels of saturated and monounsaturated fatty acids in embryos in comparison with fish fed FO100 diet. The levels of docosahexaenoic acid of embryos gradually decreased during embryogenesis in all treatments, whereas the concentrations of eicosapentaenoic acid was greatly increased at hatching day (35 days after spawning). Regarding serum biochemical parameters, fish fed the VO100 diet had the highest serum glucose, cholesterol, and low‐density lipoprotein levels. The results of the current study revealed that replacement of dietary FO with a mixture of VO up to 75% did not have any adverse effects on reproductive performance and health indices of O. mykiss females.

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Section: Discussionsupporting

confidence: 88%

Replacing Dietary Fish Oil with Vegetable Oil Blends in Female Rainbow Trout Brood Stock Does Not Affect Breeding Quality

Agh

Jafari

Jalili

et al. 2019

Lipids

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“…fornicata are not known, it is widely recognized that the essential ω3 PUFA (especially EPA and DHA) are crucial for hatching success and larval growth and survival in bivalves [21-24,72-74], gastropods [25], and sea urchins [69,70,75]. Accumulation of ω3 over ω6 was reported for several species and the ω3/ω6 ratio was considered an index of egg quality in several fishes and invertebrates [76-79]. Following such assumptions, our results showed that in early embryos of C .…”

Section: Discussionmentioning

confidence: 99%

Seasonal Variations in Maternal Provisioning of Crepidula fornicata (Gastropoda): Fatty Acid Composition of Females, Embryos and Larvae

et al. 2013

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Recruitment success of marine invertebrate populations not only depends on the number of recruits but also on their quality which affects their survival. In species characterized by a mixed development (encapsulated embryonic development and release of planktotrophic larvae), the offspring quality depends on both maternal provisioning and larval feeding. Here, we investigated potential changes of maternal provisioning over the whole reproductive period in a gastropod with a mixed development: Crepidula fornicata . In its introduction area, C . fornicata reproduces from February to October, which implies that both adults and larvae are exposed to different food availabilities. Maternal provisioning was assessed by measuring the fatty acid (FA) composition of females, encapsulated embryos and larvae, in February, May, July and September 2009. FA are essential resources for the development of embryos and larvae, and are key biomarkers of offspring quality. Our results showed differences in FA composition between muscles, visceral masses, and encapsulated embryos. In particular, FA composition of embryos was similar to that of the visceral mass. Seasonal variations in FA composition were observed: in the middle of the reproductive season (May and July), female tissues and embryos showed a higher proportion of polyunsaturated fatty acids and especially ω3, as compared to the beginning and end of the reproductive season (February and September). This showed that through maternal provisioning the quality of C . fornicata offspring was higher in the middle of the reproductive season. Whether this would result in an increase of recruitment success and juvenile performance would require further investigations.

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“…There are several studies that use this approach for discussing utilization and retention of dry matter, energy and macronutrients (Blaxter & Hempel 1966;Cetta & Capuzzo 1982;Heming & Buddington 1988;Rønnestad et al 1992aRønnestad et al ,b, 1993Finn 1994;Faleiro & Narciso 2010), while similar analysis of vitamins, minerals and trace elements are scarce (Rønnestad et al 1997(Rønnestad et al , 1999Maeland et al 2003). At present there is no holistic understanding of the utilization of the yolk matter by the growing fish larvae.…”

Section: Indirect Measurementsmentioning

confidence: 99%

Fish larval nutrition and feed formulation: knowledge gaps and bottlenecks for advances in larval rearing

Hamre¹,

Yúfera

Rønnestad

et al. 2013

Reviews in Aquaculture

335

282

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Despite considerable progress in recent years, many questions regarding fish larval nutrition remain largely unanswered, and several research avenues remain open. A holistic understanding of the supply line of nutrients is important for developing diets for use in larval culture and for the adaptation of rearing conditions that meet the larval requirements for the optimal presentation of food organisms and/or microdiets. The aim of the present review is to revise the state of the art and to pinpoint the gaps in knowledge regarding larval nutritional requirements, the nutritional value of live feeds and challenges and opportunities in the development of formulated larval diets.

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Lipid dynamics during early development of Hippocampus guttulatus seahorses: Searching for clues on fatty acid requirements

Cited by 42 publications

References 42 publications

Replacing Dietary Fish Oil with Vegetable Oil Blends in Female Rainbow Trout Brood Stock Does Not Affect Breeding Quality

Replacing Dietary Fish Oil with Vegetable Oil Blends in Female Rainbow Trout Brood Stock Does Not Affect Breeding Quality

Seasonal Variations in Maternal Provisioning of Crepidula fornicata (Gastropoda): Fatty Acid Composition of Females, Embryos and Larvae

Fish larval nutrition and feed formulation: knowledge gaps and bottlenecks for advances in larval rearing

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