Protein levels for Litopenaeus vannamei in semi-intensive and biofloc systems

Jatobá, Adolfo; Silva, Bruno Corrêa da; Silva, Jairo Souza da; Vieira, Felipe do Nascimento; Mouriño, José Luiz Pedreira; Seiffert, Walter Quadros; Toledo, Tárik Massucci

doi:10.1016/j.aquaculture.2014.05.005

Cited by 62 publications

(39 citation statements)

References 29 publications

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“…Shrimp final was adequate for the species, with an average of over 77.0% (Table 3). The weekly gain was similar to that observed by Jatobá et al (2014) for shrimp fed experimental diets containing fishmeal (1.79 g/week). For shrimp fed a diet with 100% replacement of fishmeal, the lowest weekly gain of 1.57 g was still higher than the growth reported in other studies with fishmeal-free diets (Ray et al, 2010;Scopel et al, 2011;Sookying and Davis, 2011;Bauer et al, 2012;Sá et al, 2013) or experimental and/or commercial diets with fishmeal (Ray et al, 2010;Scopel et al, 2011;Bauer et al, 2012;Sá et al, 2013;Schveitzer et al, 2013a;2013b).…”

Section: Discussionsupporting

confidence: 85%

“…Also, the heterotrophic phase provides more nutritional value (Avnimelech, 2006;Ebeling et al, 2006;Wasielesky et al, 2006;Taw, 2010) than the others. The levels of crude protein in the biofloc (275.9 g kg −1 ) were higher than those (average 194.7 g kg −1 ) observed by other authors (Chamberlain et al, 2001;Tacon et al, 2002;Williams et al, 2005;Wasielesky et al, 2006;Taw, 2010;Jatobá et al, 2014), who recorded values of crude protein below 25.0%.…”

Section: Discussioncontrasting

confidence: 54%

“…Bioflocs provide a constant source of food for farmed animals (Avnimelech, 1999;Burford et al, 2003;Avnimelech, 2006;Michaud et al, 2006;Wasielesky et al, 2006;Taw, 2010;Jatobá et al, 2014). In the proximate composition of bioflocs, a higher level of ash was observed in the tanks with shrimp fed diet without replacement of fishmeal (0%) in comparison with tanks with 100% replacement, whereas the 33 and 66% treatments were not significantly different.…”

Section: Discussionmentioning

confidence: 99%

“…Diets were formulated with 300-330 g kg −1 of crude protein (Jatobá et al, 2014) and similar amounts of marine-origin lipids (fish oil + fat contained in the fishmeal), aiming to provide similar fatty acid composition.…”

Section: Methodsmentioning

confidence: 99%

“…In each tank, 200 shrimps were stocked, maintaining an initial density of 250 shrimp m −3 . Shrimp were fed four times a day (8:00, 11:00, 14:00, and 17:00 h) with a monitoring program to confirm intake, as described by Jatobá et al (2014). The first feeding supplied 4% of the initial stocked shrimp biomass, with total 90% of the meal broadcast over the water surface and the remainder in feeding trays.…”

Section: Methodsmentioning

confidence: 99%

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Replacement of fishmeal for soy protein concentrate in diets for juvenile Litopenaeus vannamei in biofloc-based rearing system

et al. 2017

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-This study aimed to assess the final body weight, weekly weight gain, yield, apparent feed efficiency, protein efficiency ratio, and feed intake of the Pacific white shrimp (Litopenaeus vannamei) fed four diets containing different levels of soy protein concentrate (SPC) as a replacement for fishmeal, reared in a super-intensive biofloc system. Diets consisted of replacing 209 g kg −1 fishmeal at 0, 33, 66, and 100% SPC. Shrimp were raised in a biofloc system using twelve experimental units stocked with 250 shrimp m −3 under constant aeration (O2>5mg L −1 ) and temperature (29±0.5 °C). No significant differences among treatments were observed based on water quality parameters. Shrimp fed diets with 0 and 33% substitution exhibited the highest weekly growth (1.88 and 1.79 g per week) and final weights (15.2 and 14.7 g) compared with shrimp fed the 66 and 100% replacement. A lower feed intake was observed for shrimp fed the 33% SPC diet (3.18 kg per experimental unit) compared with 0% replacement (3.62 kg). Shrimp fed the 33% replacement achieved a similar performance and lower feed intake than animals fed diet without replacement.

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