Effects of wild and farm-grown macroalgae on the growth of juvenile South African abalone<i>Haliotis midae</i>Linnaeus

Robertson-Andersson, Deborah; Maneveldt, Gavin W.; Naidoo, Krishni

doi:10.2989/16085914.2011.636910

Cited by 9 publications

(5 citation statements)

References 40 publications

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“…cultivated in a land-based intensive culture system in Pacific Northwest, albeit without statistical differences [31]. Furthermore, some studies have reported higher protein levels in farmed macroalgae in comparison to their wild counterparts, as aquaculture effluent is richer in nutrients, especially dissolved nitrogen, than seawater [32,33]. Indeed, this fact could in part justify that the maximum value found in our study was slightly higher than those reported for several specimens of wild Ulva from Northwest Europe (25.8 vs. 23.6% DW) [34][35][36].…”

Section: Crude Proteinmentioning

confidence: 99%

Valuable Nutrients from Ulva rigida: Modulation by Seasonal and Cultivation Factors

et al. 2021

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Ulva macroalgae species are recognized to be an underexploited source of key nutrients, including proteins, fibers and minerals. The present work evaluated the nutritional value protein, ash, mineral composition, fat, fatty acid profile and dietary fiber of the green macroalgae Ulva rigida produced in an open land-based integrated multi-trophic aquaculture (IMTA) system, over four seasons. Overall, protein and fat content of the farmed algae ranged between 7.6 and 25.8% DW and between 0.2 and 1.3% DW, respectively, reaching the highest levels during autumn/winter seasons. In turn, total dietary fiber and ashes showed a contrary seasonal tendency, reaching maximum levels in spring (40.9–58.3% DW and 25.5–38.8% DW, respectively). Notably, the latter were particularly characterized by their richness in potassium, magnesium and iron, and a sodium/potassium ratio bellow 1.7. Variable cultivation conditions of stocking density (Sd) and flow rate (Fr) were also tested, allowing to confirm that manipulation of cultivation conditions in an IMTA system may help to improve the nutritional value of this macroalga and to boost its market value through its use as a functional food ingredient.

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Section: Crude Proteinmentioning

confidence: 99%

Valuable Nutrients from Ulva rigida: Modulation by Seasonal and Cultivation Factors

et al. 2021

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“…Despite this however, extensive research regarding the best feeding strategy for abalone is widely available. As the scope of this study is not to review all these findings, dietary research carried out on especially H. midae serve well to illustrate this point (Day & Cook 1995;Britz 1996a;Sales & Britz 2001;Day & Branch 2002;Macey & Coyne 2005;Naidoo et al 2006;Ten Doeschate & Coyne 2008;Robertson-Andersson et al 2011;Huddy & Coyne 2014).…”

Section: Feeding Of Abalone In the Farming Contextmentioning

confidence: 99%

“…This variation could be species dependent, and the optimal dietary protein intake for H. midae largely considered to be 36% of the total nutrient intake (Robertson‐Andersson et al . ), derived mainly from fishmeal and Spirulina spp. (Britz ).…”

Section: Feeding Of Abalone In the Farming Contextmentioning

confidence: 99%

Abalone growth and associated aspects: now from a metabolic perspective

Venter

Loots

Vosloo

et al. 2016

Reviews in Aquaculture

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Worldwide, there are approximately 100 Haliotis species, more commonly known as abalone or ‘Paua’ in New Zealand, ‘Venus's‐ears’ in Greece, ‘Awabi’ in Japan, ‘Perlemoen’ in South Africa and ‘Ormers’ in Europe. Regardless of what they are called in any part of the world, a high monetary value is coupled to this animal, because it is largely considered a seafood delicacy. Subsequently, a great deal of research primarily focused on improving the health and growth rates of abalone were carried out to maximise productivity of the commercial farming efforts in various countries. In this review, we comprehensively describe the most recent available scientific literature on abalone biology, and those aspects related to the growth of this organism; more specifically, those factors related to the uptake and breakdown of metabolic products which ensures long‐term growth. We subsequently discuss this in terms of basic animal design, farming outcomes, feeding, cellular growth mechanisms and the unique metabolic processes that exist in these species. Using this information and the knowledge of the metabolic processes in other organisms, we additionally make a number of new hypotheses regarding how these metabolic processes may function in terms of abalone growth. Based on the information presented in this review, we also identify major research opportunities and gaps in the existing knowledge of abalone metabolism, which when elucidated may not only serve the purpose of better understanding these organisms growth but also could potentially lead to increased productivity of the abalone commercial farming sector.

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“…or the rhodophyte Gracilaria spp. have a high dietary value for H. tuberculata spp., (Culley and Peck, 1981;Mercer et al, 1993;Viera et al, 2005Viera et al, , 2011, showing also that mixed diets produced far better growth rates than singlespecies diets, which is generally accepted for most abalone species (Simpson and Cook, 1998;Dlaza, 2008;Naidoo et al, 2006;Kinkerdale et al, 2010;Robertson-Andersson et al, 2011).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

First development of various vegetable-based diets and their suitability for abalone Haliotis tuberculata coccinea Reeve

et al. 2015

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Effects of wild and farm-grown macroalgae on the growth of juvenile South African abaloneHaliotis midaeLinnaeus

Cited by 9 publications

References 40 publications

Valuable Nutrients from Ulva rigida: Modulation by Seasonal and Cultivation Factors

Valuable Nutrients from Ulva rigida: Modulation by Seasonal and Cultivation Factors

Abalone growth and associated aspects: now from a metabolic perspective

First development of various vegetable-based diets and their suitability for abalone Haliotis tuberculata coccinea Reeve

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