Growth parameters in European sea bass (<i>Dicentrarchus labrax</i>L.): effects of live weight and water temperature

Lanari, D.; D’Agaro, Edo; Ballestrazzi, Rodolfo

doi:10.4081/ijas.2002.181

Cited by 21 publications

(21 citation statements)

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“…Only a few studies have been carried out to determine the optimal energy and protein requirements of marine fish using high-energy diets (Curry Woods III et al, 1995;Guinea and Fernandez, 1997;Lupatsch et al, 2001). Recently, Lanari et al (2002) reported growth performance and voluntary feed intakes (VFI) of sea bass of different weights reared under various water temperatures.…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary energy content on the voluntary feed intake and blood parameters of sea bass (Dicentrarchus labrax L.)

D’Agaro

Lanari

2003

Italian Journal of Animal Science

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Energy and protein requirements of sea bass for maximum growth and fasting energy requirements were determined by using three diets containing increasing DE levels and two fish weights. Five hundred and sixteen sea bass were divided in two body weight (BW) classes (A: 67.7 ± 0.85g and B: 128.6 ± 0.88g, mean ± SD live weight) and randomly distributed among 24 tanks. They were fed for 12 weeks on three isoproteic diets characterized by different levels of digestible energy (DE): low energy (LE), 18.6; medium energy (ME), 19.7; and high energy (HE), 22.6 MJ kg -1 dry matter (DM). The entire trial lasted 113 d and was divided into two periods: a feeding trial of 83 d and a fasting trial of 30 d. Specific growth rates decreased in fish fed on the HE diet (P < 0.05), but only in fish weighing 68 g. Voluntary feed intakes and feed conversion ratios were inversely related to dietary energy contents in both weight classes. During the starvation trial, body depletion increased (P<0.05) in fish fed on high-energy diets during the feeding experiment. The gross energy requirements (per day) for maximum growth were 320 and 221 kJ kg -1 BW for fish weighing 68 g and 128 g, respectively. Fasting metabolisms were 60.6 and 54.1 kJ kg -0.83 BW per day for fish weighing 68g and 128g, respectively. It is concluded that growth performance of sea bass appear to be dependent on digestible dietary energy. Gross energy intake, net energy (production) and maintenance requirements of fish were not influenced by dietary treatments.

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Section: Introductionmentioning

confidence: 99%

Effects of dietary energy content on the voluntary feed intake and blood parameters of sea bass (Dicentrarchus labrax L.)

D’Agaro

Lanari

2003

Italian Journal of Animal Science

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“…However, the eurythermal species is capable to tolerate temperatures below 5°C (FAO 2005), which would enable on-growing in the offshore regions of the German North Sea. Nonetheless, the average temperature of 10°C in the North Sea (Wiltshire and Manly 2004) is below its optimum temperature range of 22-28°C for growth (Lanari et al 2002), which will result in an extended on-growing phase. A rough approximation of the actual length at the end of the on-growing can be based on the growth models by Lanari et al (2002) and the annual temperature of the water in the German Bight (data BSH-German station bay, 10 m depth, daily mean values of 2009, www.bsh.de).…”

Section: Candidate: Dicentrarchus Labraxmentioning

confidence: 99%

The German Case Study: Pioneer Projects of Aquaculture-Wind Farm Multi-Uses

Buck

Krause

Pogoda

et al. 2017

Aquaculture Perspective of Multi-Use Sites in the Open Ocean

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Most studies on multi-use concepts of aquaculture and wind farms explored cultivation feasibility of extractive species, such as seaweed or bivalves. However, recent studies also included the cultivation of crustaceans or fish culture in the vicinity of wind turbines. Consequently, new approaches combine fed and extractive species in integrated multi-trophic aquaculture (IMTA) concepts for offshore multi-use to reduce nutrient output and the overall environmental impact of aquaculture operations. In this chapter the findings of a series of mussel and oyster cultivation experiments over several seasons are presented, which were conducted at different offshore test sites in the German Bight. Sites were selected within future offshore wind farm areas for an explicit multi-use perspective. Results have demonstrated successful growth and fitness parameters of these candidates and

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“…Moreover, we wanted to focus this paper on studying the effect of growth per se (and not an hypothetical correlated increase in feed efficiency) in an environment with limited supply of oxygen. For these reasons, we chose to implement an empirical equation of FCR dependent on fish weight (Lanari et al, 2002) and temperature (Person-Le Ruyet et al, 2004) rather than a bioenergetics model. A bioenergetics model such as presented by Cho and Bureau (1998) would generate an intrinsic correlation between TGC and FCR whereas with Eq.…”

Section: Discussionmentioning

confidence: 99%

“…Feed conversion ratio (FCR) was modelled by combining a third order polynomial model from Person-Le Ruyet et al (2004) that models feed efficiency as a function of temperature at a fixed body weight with an exponential model from Lanari et al (2002) that models the variation of FCR with fish body weight. The resulting model was the following:…”

Section: Fish Modelmentioning

confidence: 99%

“…The time to reach harvest weight, therefore, varied according to the daily temperature encountered by the fish and thus according to the stocking date. Feed conversion ratio (FCR) was modelled by combining a specific seabass model from Person-Le Ruyet et al (2004) with a model from Lanari et al (2002). The fish model also estimates the individual emission of nutrient based pollutants using mass-balance Cowey et al, 1991).…”

Section: Bioeconomic Modelmentioning

confidence: 99%

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Matching breeding goals with farming systems to enhance the sustainability of fish farming

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Growth parameters in European sea bass (Dicentrarchus labraxL.): effects of live weight and water temperature

Cited by 21 publications

References 11 publications

Effects of dietary energy content on the voluntary feed intake and blood parameters of sea bass (Dicentrarchus labrax L.)

Effects of dietary energy content on the voluntary feed intake and blood parameters of sea bass (Dicentrarchus labrax L.)

The German Case Study: Pioneer Projects of Aquaculture-Wind Farm Multi-Uses

Matching breeding goals with farming systems to enhance the sustainability of fish farming

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