Reducing dietary protein in pond production of hybrid striped bass (Morone chrysops × M. saxatilis): Effects on fish performance and water quality dynamics

Rawles, Steven D.; Green, Bartholomew W.; McEntire, Matthew E.; Gaylord, T. Gibson; Barrows, Frederic T.

doi:10.1016/j.aquaculture.2018.01.045

Cited by 22 publications

(13 citation statements)

References 31 publications

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“…Generally, fish protein requirements decrease with increasing size and age, Arnason et al (2010) reported that protein requirements for maximum growth of Atlantic cod Gadus morhua of 40-107 g was 47-52%, while for larger fish (400-900 g) this value was 36% or less. Similar results were also found for salmonids, tilapia and stiped bass Morone chrysops × M. saxatilis (Einen and Roem, 1997;Abdel-Tawwab et al, 2010;Rawles et al, 2018).…”

Section: /8 Discussionsupporting

confidence: 85%

“…Information related to performance and physiological condition in the final stages of grow-out are insufficient, especially in reference to the larger fish (>4 kg). Supplying ideal concentrations of nutrients and energy in the creation could considerably reduce environmental impact and production costs, besides increasing the quality of the fish (Rawles et al, 2018;Diógenes et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…In intensive systems, fish are frequently subject to high levels of stress and are susceptible to many adverse events, which can lead to physiological changes (Tu et al, 2015;Zhang et al, 2017). Fish nutrition experiments with purified ingredients are not effective in verifying the interaction between diet components and processing, so they are usually validated in research using practical diets (Rawles et al, 2018;Davies et al, 2019). On-farm experiments using practical diets may have greater applicability due to their similarity to production reality (Kabir et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Diets for Grow-Out of Pirarucu in Net Cage: Performance, Physiological Parameters, Fillet Composition and Feeding Cost

et al. 2019

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The present study evaluated practical diets with increasing levels of protein and energy on performance, fillet composition, feed cost, and physiological responses of pirarucu (Arapaima gigas) juveniles during the grow-out phase in a net cage system. In an on-farm trial for 90 days 225 pirarucu juveniles with initial weight ± standard deviation of 2025 ± 335 g were fed to apparent satiety with extruded diets containing 37.4 (T-37), 40.8 (T-40), 43.9 (T-43), 45.5 (T-46), and 47.1% (T-49) crude protein (CP), increasing lipid levels, and energy:protein ratio fixed in 10 kcal g-1. Protein and lipid concentrations in the diets influenced the cost, fillet composition, and important physiological aspects of the health maintenance and productive performance of the pirarucu juveniles. Fish fed the T-37 diet had lower concentrations of fat in body cavity, fillet and blood, and had a lower cost associated with feeding. The increase in protein and energy levels in the other diets tested reduced the economic return, did not improve the zootechnical performance and caused physiological changes in the fish.

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Section: /8 Discussionsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Diets for Grow-Out of Pirarucu in Net Cage: Performance, Physiological Parameters, Fillet Composition and Feeding Cost

et al. 2019

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“…On the other hand, Lys supplementation above the required value has demonstrated positive effects on the growth and use of nutrients (Li, Zhou, Mo, Pan, & Gan, 2017; Prabu, Felix, Uma, & Praveenraj, 2019), fillet yield (Michelato et al., 2016), mobilization of body fat (Cheng, Hardy, & Usry, 2003; Li et al., 2017), muscle carnitine content (Li et al., 2017), liver function and haematological and biochemical status of fish (Prabu et al., 2019; Li et al., 2017). In addition, AA supplementation allows for a reduction in the amount of protein (Rawles, Green, McEntire, Gaylord, & Barrows, 2018) and the cost of diets (Güroy et al., 2017).…”

Section: Discussionmentioning

confidence: 99%

Effects of reduced protein level and dietary amino acid supplementation on growth, body composition and intestinal morphometry of silver catfish ( Rhamdia quelen )

Schneider

Durigon

Peixoto³

et al. 2020

Aquac Res

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The reduction in the protein level and the supplementation of lysine (Lys) and methionine (Met) in the diet were evaluated in the performance and intestinal morphometry of silver catfish (Rhamdia quelen). The study was used in a completely randomized design for 63 days, where 320 fish (26.33 ± 0.40 g) were distributed in 20 tanks (250 L, 16 fish each) and fed until the apparent satiety was reached. Five diets were formulated, a positive control [38% of crude protein (CP) (38CP)], a negative control [34% of CP (34CP)] and three test diets [34% of CP supplemented with Lys (34L), 34% of CP supplemented with Met (34M) and 34% of CP supplemented with Lys plus Met (34LM)]. Final weight and condition factor were greater in fish fed the 34LM diet than in those fed the 34CP diet (p < .05). Body lipid deposition was lower in fish fed the 34CP diet than other diets (p = .0002). In the fillet, there was a lower deposition of lipids in fish fed with 34L diet than in fish fed with 34M and 34LM diets (p <.0001). Fish fed the 34LM diet had a higher AA content in the plasma than those fed 34L and 34CP diets (p < .0001). The lower villus height was observed in fish fed the 34L diet compared to the 38CP diet (p = .021). It is possible to reduce 4% of the CP level in silver catfish diets with supplementation of Lys and Met.

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“…Water Table 1 Formulations and composition (g/kg as-is) of commercially extruded practical test diets fed to hybrid tilapia in a biofloc production system. Rawles et al (2018). c Amino acids provided by Evonik Industries, Essen, Germany.…”

Section: Tank Management Fish and Feedingmentioning

confidence: 99%

Effects of dietary protein content on hybrid tilapia (Oreochromis aureus × O. niloticus) performance, common microbial off-flavor compounds, and water quality dynamics in an outdoor biofloc technology production system

Green¹,

Rawles²,

Schrader³

et al. 2019

Aquaculture

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Given tilapia grown in the biofloc technology production system can consume the biofloc, it should be possible to optimize formulated diet protein content to account for nutrition derived from consuming biofloc. The present study, conducted in an outdoor biofloc technology production system, evaluated impacts on fish production indices, common microbial off-flavors, and water quality dynamics for hybrid tilapia (Oreochromis aureus × O. niloticus) fed diets formulated to contain 22.5%, 27.7%, and 32.3% digestible protein (DP) and 6% lipid. Fingerlings (32.2 ± 10.1 g/fish) were stocked in tanks (18.6 m 2 ; 16.6 m 3) in May 2016 at 25/m 2 (29/m 3) and grown for 5 months to market size. At harvest, fish fed the 22.5% DP diet were significantly smaller (518 g/fish) and had significantly higher feed conversion (1.5) than those fed the higher DP diets (553-564 g/fish and 1.4, respectively). Feed nitrogen input and nitrification rate increased linearly with increased DP. Results of this study suggest that by using ideal protein theory to formulate diets supplemented with the first four limiting amino acids (Lys, Met, Thr, Ile) digestible protein can be reduced from 32.3% to 27.7% without adversely affecting hybrid tilapia productivity indices. Market size distributions, nutrient retention, 2-methylisoborneol and geosmin off-flavors, and pond water quality dynamics in relation to diet DP also are discussed.

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Reducing dietary protein in pond production of hybrid striped bass (Morone chrysops × M. saxatilis): Effects on fish performance and water quality dynamics

Cited by 22 publications

References 31 publications

Diets for Grow-Out of Pirarucu in Net Cage: Performance, Physiological Parameters, Fillet Composition and Feeding Cost

Diets for Grow-Out of Pirarucu in Net Cage: Performance, Physiological Parameters, Fillet Composition and Feeding Cost

Effects of reduced protein level and dietary amino acid supplementation on growth, body composition and intestinal morphometry of silver catfish ( Rhamdia quelen )

Effects of dietary protein content on hybrid tilapia (Oreochromis aureus × O. niloticus) performance, common microbial off-flavor compounds, and water quality dynamics in an outdoor biofloc technology production system

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Reducing dietary protein in pond production of hybrid striped bass (Morone chrysops × M. saxatilis): Effects on fish performance and water quality dynamics

Cited by 22 publications

References 31 publications

Diets for Grow-Out of Pirarucu in Net Cage: Performance, Physiological Parameters, Fillet Composition and Feeding Cost

Diets for Grow-Out of Pirarucu in Net Cage: Performance, Physiological Parameters, Fillet Composition and Feeding Cost

Effects of reduced protein level and dietary amino acid supplementation on growth, body composition and intestinal morphometry of silver catfish ( Rhamdia quelen )

Effects of dietary protein content on hybrid tilapia (Oreochromis aureus × O. niloticus) performance, common microbial off-flavor compounds, and water quality dynamics in an outdoor biofloc technology production system

Contact Info

Product

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Reducing dietary protein in pond production of hybrid striped bass (Morone chrysops × M. saxatilis): Effects on fish performance and water quality dynamics

Effects of dietary protein content on hybrid tilapia (Oreochromis aureus × O. niloticus) performance, common microbial off-flavor compounds, and water quality dynamics in an outdoor biofloc technology production system