Southern bluefin tuna,
            <i>Thunnus maccoyii</i>
            .

Glencross, Brett; Carter, Chris; Gunn, John; Barneveld, RJ van; Rough, Kirsten; Clarke, Steven

doi:10.1079/9780851995199.0159

Cited by 9 publications

(24 citation statements)

References 9 publications

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“…Under conditions where ambient water temperatures were less than 15ºC, and when growth had virtually ceased, an average of about 0.15 MJ of gross energy (GE) was consumed per kg body weight per day. Based on these data for maintenance, the energetic requirement for 1 kg of gain (at 16ºC) was estimated to be around 56 MJ of GE (Glencross et al, 2002). This value is about twice that estimated for cultured Atlantic salmon, Salmo salar (NRC, 1993).…”

Section: Energymentioning

confidence: 60%

“…This value is about twice that estimated for cultured Atlantic salmon, Salmo salar (NRC, 1993). In studies examining growth rates of SBT as a function of average protein intake, GE intakes as a function of growth have also been evaluated (Glencross et al, 2002). GE intakes were consistent with protein intake assessments, and a levelling off of growth was observed with a daily energy intake of about 0.3 MJ per kilogram body weight per day (no compensation for variation in ambient water temperature was taken into account).…”

Section: Energymentioning

confidence: 96%

“…There have been several attempts at the domestication of large tunids and scombrids, but in these studies, and in the several capture base-farming schemes currently in operation around the globe, nutritional studies have been few (Glencross et al, 2002). In consequence, little is known about the quantitative or, indeed, qualitative, nutritional requirements for these species.…”

Section: Introductionmentioning

confidence: 99%

“…As a consequence, relative requirements have to be estimated on the modelling of performance of bluefin tunas fed various practical diet formulations. This approach can provide useful insights that can be applied in the development of artificial feeds (Glencross et al, 2002).…”

Section: Definition Of Basic Nutritional Requirements Of Tunidsmentioning

confidence: 99%

“…Based on nonparametric analysis from several moist and baitfish diets fed under various feeding regimes in trials with SBT, a response surface model was developed, suggesting that both protein and energy were key factors in the diet of SBT, but that dietary energy had a greater influence than dietary protein (Glencross et al, 1999a, b). Modelling of the nutritional value of feed with respect to the effects of dietary energy on feed conversion suggested that dietary fat levels were a key factor in influencing the energetic value of the diets for SBT (Glencross et al, 2002).…”

Section: Energymentioning

confidence: 99%

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Tuna Nutrition and Feeds: Current Status and Future Perspectives

Mourente

Tocher

2009

Reviews in Fisheries Science

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Aquaculture is providing an ever-increasing proportion of fish in the human food basket prompting a search for new species to expand the range available to consumers. Large tunids/scombrids have long-since been a very valuable resource providing not only high quality protein, but also a rich source of the highly beneficial omega-3 (or n-3) long-chain polyunsaturated fatty acids including eicosapentaenoic and, especially docosahexaenoic acids in the human diet. Consequently, there is considerable interest worldwide in developing the culture of large tunids, including Atlantic northern bluefin tuna (Thunnus thynnus), Pacific bluefin tuna (Thunnus orientalis), southern bluefin tuna (Thunnus maccoyii) and yellowfin tuna (Thunnus albacares). Nutrition is vital to this development, playing key roles in reproductive success, including the establishment of successful broodstock producing high quality eggs and larvae, and ultimately the cost-effective production of nutritious seafood.This review summarises the rather fragmentary data that compromise the current state-of-theart in relation to tuna nutrition and the development of artificial, formulated feeds for these species. In highlighting the various considerable challenges that feed development will pose, we discuss the future perspectives for tuna culture in terms of both fish and human nutrition and welfare, against the background of diminishing global marine resources.3

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Section: Energymentioning

confidence: 60%

Section: Energymentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Definition Of Basic Nutritional Requirements Of Tunidsmentioning

confidence: 99%

Section: Energymentioning

confidence: 99%

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Tuna Nutrition and Feeds: Current Status and Future Perspectives

Mourente

Tocher

2009

Reviews in Fisheries Science

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Weaning of greater amberjack (Seriola dumerilii Risso 1810) juveniles from moist to dry pellet

et al. 2007

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The weaning of greater amberjack (Seriola dumerilii Risso 1810) to a dry diet was studied in two consecutive experiments. The experimental fish were hatchery-produced and grown to their initial size on a soft pellet containing 50% trash fish and 50% commercial dry pellet. In the first experiment, three homogenous groups of greater amberjacks (n = 153, mean weight: 374 ± 43 g), initially adapted for a period of 30 days to a diet with a 40% moisture content, were fed on commercial pellets containing three different levels of dietary moisture (7, 20 and 40%, respectively) for 126 days. We found that fish needed a month to adapt to the 7%-and 20%-moisture diets and that moisture content of the diet had a significant effect on fish growth in terms of increasing feed consumption and lowering feed conversion ratio. The group fed on the 20%-moisture diet not only compensated for the initial adaptation period but presented the higher growth rate and best feed conversion ratio. In the second experiment, all groups of experiment 1 were fed the same commercial diet with a 7% moisture content for 72 days. The group that had been previously fed on the 20%-moisture diet showed the best growth performance. The implication of the above results for the weaning of greater amberjack to dry diets is discussed in terms of the digestion process and physiology.

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