Comparative studies on the nutrition of two species of abalone, Haliotis tuberculata L. and Haliotis discus hannai Ino. V. The role of polyunsaturated fatty acids of macroalgae in abalone nutrition

Mai, Kangsen; Mercer, John P.; Donlon, John

doi:10.1016/0044-8486(95)01158-7

Cited by 109 publications

(72 citation statements)

References 12 publications

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“…SGR values were also high (1.5-2.7%) in comparison with those reported by Mai et al (1996), who studied the effect of five species of macroalgae (P. palmata, Alaria esculenta, Ulva lactuca, Laminaria digitata and Laminaria saccharina) and reported SGR values of 1.03-1.31% for H. tuberculata and 0.7-1.25% for H. discus hannai.…”

Section: Discussionmentioning

confidence: 69%

Suitability of three red macroalgae as a feed for the abalone Haliotis tuberculata coccinea Reeve

et al. 2005

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A 60-day feeding trial was conducted to assess the suitability of three red algae, Hynea spinella, Hynea musciformis and Gracilaria cornea, as potential feed for the culture of juvenile abalone, Haliotis tuberculata coccinea R. Seaweeds were reared in a biofiltration unit with fishpond waste water effluents. The three algal species were found to contain high protein contents which would be related to its production under the high nitrogen culture conditions of the biofilter system. Protein and carbohydrate contents were highest in H. musciformis and lowest in G. cornea. Survival rates of juvenile abalone were very good, regardless of the algae fed. Feed intake of H. spinella was highest, followed by H. musciformis. Growth rates of abalone were within the range obtained under commercial conditions, final shell length and weight being significantly highest in animals fed H. spinella and lowest in those fed G. cornea. Feeding G. cornea lead to the lowest growth performance due to the lowest feed intake, whereas feed conversion ratios were significantly highest for H. musciformis and protein efficiency ratios were higher for both H. spinella and G. cornea. This study suggested the good potential of any of the three red seaweeds testedsuccessfully produced by the biofilter system, their nutritional composition being similar to other macroalgae used as feed for abalone and matching the abalone protein and lipid requirements-hence promoting growth and survival. Nevertheless, the biofilter produced macroalgae H. spinella showed the highest dietary value for juvenile of H. tuberculata coccinea.

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Section: Discussionmentioning

confidence: 69%

Suitability of three red macroalgae as a feed for the abalone Haliotis tuberculata coccinea Reeve

et al. 2005

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“…However, in the slug samples, ΣMUFA level found to be higher than ΣSFA and ΣPUFA levels in terms of neutral and total lipid content. The results of the current study declared that the fatty acid profiles of the snails and slug revealed common patterns of fatty acids and common characteristics to gastropods in general [4][5][6][11][12][13][14].…”

Section: Tablo 2 Fatty Acid Composition Of Phospholipid Neutral Lipmentioning

confidence: 99%

“…Their structures were known as C20:2∆ [5][6][7][8][9][10][11] , C20:2∆ 5-13 , C22:2∆ 7-13 and C22:2∆ [7][8][9][10][11][12][13][14][15] . Some authors suppose that in aquatic invertebrates, these fatty acids have an endogenous origin [23,24].…”

Section: Tablo 2 Fatty Acid Composition Of Phospholipid Neutral Lipmentioning

confidence: 99%

Investigation of the Fatty Acid Contents of Edible Snails Helix lucorum, Eobania vermiculata and Non-Edible Slug Limax flavus

Ekin¹,

Şeşen²

2017

Rec.Nat.Prod.

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Abstract:The purpose of this work is to reveal the fatty acid composition of phospholipids, neutral and total lipid content of edible land snails Helix lucorum, Eobania vermiculata and non-edible land slug Limax flavus (Gastropoda: Pulmonata). The analyses revealed that the snails and slug are rich in C16:0, C18:0, C18:1ω9 and C18:2ω6 acids. Phospholipid fractions contained very high amounts of C20:4ω6 (15.37% in H. lucorum, 12.37% in E. vermiculata and 8.59% in L. flavus) which is the most important precursor of eicosanoids. The level of ΣPUFA, in edible snails, was found to be higher than ΣSFA and ΣMUFA. However, in the slug, ΣMUFA level was higher than ΣSFA and ΣPUFA levels in neutral and total lipid contents. Ʃω6 / Ʃω3 (Omega 6 / Omega 3) ratio was defined to be very high in the phospholipid of H. lucorum, E. vermiculata and L. flavus; 6.07, 8.29 and 5.39, respectively. Furthermore, the study showed that all three species are valuable sources of omega 6 and essential fatty acids; C18:2ω6 and C18:3ω6.

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“…The fatty acid profile of L. saccharina is rich in 18:1(n-9), 18:4(n-3), 20:4(n-6) and 20:5(n-3) (Fleurence et al 1994, Mai et al 1996. The subtidal populations of urchins at both locations had higher values of 18:1(n-9), 20:4(n-6) and 20:5(n-3), indicating that L. saccharina may be an important component of the subtidal diet.…”

Section: Fatty Acid Analysismentioning

confidence: 99%

Gonad fatty acids and trophic interactions of the echinoid Psammechinus miliaris

Hughes¹,

Catarino²,

Kelly³

et al. 2005

Mar. Ecol. Prog. Ser.

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Variation in gonadal somatic indices (GSI) and fatty acid signatures of 2 contrasting Scottish west coast populations of the echinoid Psammechinus miliaris were examined. P. miliaris was sampled from both the shallow subtidal and at the upper limit of its distribution in the intertidal. The intertidal population had a significantly higher GSI than the subtidal at both locations. Multivariate analysis (ANOSIM) of the fatty acid signature showed significant variation between the 2 depths as well as between sex and location. SIMPER analysis indicated a complex pattern of variation between location and depths. Both 20:4(n-6) and 20:5(n-6), associated with brown algae, were found in higher levels in subtidal populations, while levels of 22:6(n-3) were higher in the intertidal at one site, and 18:4(n-3) higher at the other. Of these acids, 22:6(n-3) is associated with filter feeding invertebrates, and 18:4(n-3) with green algae. Omnivorous diets in urchins have been associated with increased gonadal growth and the results from this study strongly suggest that the observed differences in GSI between intertidal and subtidal P. miliaris result from a higher quality diet in the intertidal, consisting of invertebrates and green algae.

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Comparative studies on the nutrition of two species of abalone, Haliotis tuberculata L. and Haliotis discus hannai Ino. V. The role of polyunsaturated fatty acids of macroalgae in abalone nutrition

Cited by 109 publications

References 12 publications

Suitability of three red macroalgae as a feed for the abalone Haliotis tuberculata coccinea Reeve

Suitability of three red macroalgae as a feed for the abalone Haliotis tuberculata coccinea Reeve

Investigation of the Fatty Acid Contents of Edible Snails Helix lucorum, Eobania vermiculata and Non-Edible Slug Limax flavus

Gonad fatty acids and trophic interactions of the echinoid Psammechinus miliaris

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