Effects of two commercially available low-protein diets (21% and 31%) on water and sediment quality, and on the production of Litopenaeus vannamei in an outdoor tank system with limited water discharge

McIntosh, Dennis; Samocha, Tzachi M.; Jones, Edward R.; Lawrence, Addison L.; Horowitz, Sarah; Horowitz, Arthur J.

doi:10.1016/s0144-8609(01)00073-5

Cited by 30 publications

(24 citation statements)

References 7 publications

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“…Continuous fertilization by shrimp effluent is inferior to pulsed fertilization in supporting short-term high nutrient uptake rates and growth of Gracilaria spp. A pulsed fertilization also slows down epiphyte proliferation (Jones et al, 2001;Nelson et al, 2001). Nevertheless, Gracilaria performed well in continuous fertilization in the present study.…”

Section: Discussioncontrasting

confidence: 45%

“…This feature makes the study relevant to commercial farms, with respect to algal growth, nutrient uptake, agar production and ephiphytic colonization (Friedlander and Levy, 1995;Jones et al, 2001;Ryther et al, 1991). Continuous fertilization by shrimp effluent is inferior to pulsed fertilization in supporting short-term high nutrient uptake rates and growth of Gracilaria spp.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Growth and nutrient uptake of the macroalga Gracilaria tikvahiae cultured with the shrimp Litopenaeus vannamei in an Integrated Multi-Trophic Aquaculture (IMTA) system

et al. 2015

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Section: Discussioncontrasting

confidence: 45%

Section: Discussionmentioning

confidence: 99%

Growth and nutrient uptake of the macroalga Gracilaria tikvahiae cultured with the shrimp Litopenaeus vannamei in an Integrated Multi-Trophic Aquaculture (IMTA) system

et al. 2015

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“…Information is still scarce about how microorganisms profile and its nutritional composition could impact animal growth. However, is already known that microorganisms in biofloc might partially replace protein content in shrimp diets, although were not always the case [10,88]. Recent studies determined how reducing the protein content of diet would affect growth performance of shrimp reared in biofloc conditions.…”

Section: Microbial Biomass Application In Animal Food Industrymentioning

confidence: 99%

Biofloc Technology (BFT): A Review for Aquaculture Application and Animal Food Industry

Emerenciano¹,

Gaxiola²,

Cuzon³

2013

Biomass Now - Cultivation and Utilization

173

141

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“…There is a need to develop diets for shrimp cultured in intensive farming systems that will provide sufficient protein for shrimp production while minimizing the amount of nitrogen being introduced into the culture medium (McIntosh et al, 2001). Shrimp typically have a higher dietary protein requirement during the different growth phases (Chen et al, 1985;Velasco et al, 2000).…”

Section: Benefits Of Biofloc In Shrimp Farmingmentioning

confidence: 99%

Sustainable Growth of Shrimp Aquaculture Through Biofloc Production as Alternative to Fishmeal in Shrimp Feeds

Megahed¹,

Mohamed²

2014

JAS

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As capture fisheries are now fully exploited in Egypt, aquaculture is considered the only source for meeting the demand of seafood for rapidly growing populations in Egypt. To meet these demands for seafood, aquaculture has to grow fast and to be more intensive. Fishmeal sources from capture fisheries are fully exploited and thus become costly ingredient in fish and crustacean feed formulations. The present study evaluated biofloc technology as a sustainable alternative to fishmeal in the shrimp feeds using cheap carbon source for stimulation of the microbial biofloc growth, in addition to reduce protein content of the shrimp feeds. The shrimp were fed on three different diets (Control 45% CP, BF 25.10 and BF 30.10 ). The shrimp were cultured for 150 days. The water quality in biofloc-based pond was maintained with the promotion and development of biofloc through rice bran addition during the experiment. At the end of the experiment, the total yields of the shrimp in the two biofloc treatments were significantly higher than those of the shrimp in the control group (P < 0.05). The results indicated that promoting biofloc through carbohydrate addition in culture systems could enhance growth performance and water quality of cultured shrimp under the conditions of the present study. Feed conversion ratio (FCR) was significantly (P < 0.05) differed among treatments compared to control diet (1.51 ± 0.11; 1.66 ± 0.13 and 1.80 ± 0.10 for BF 25.10 ; BF 30.10 and control, respectively). There were significant differences (P < 0.05) in shrimp mean final weight between treatments and control diet (37.10 ± 2.22 g; 35.31 ± 1.52 g and 33.24 ± 2.17 g for BF 25.10 ; BF 30.10 and control, respectively). Mean survival (70 ± 8.30%; 66 ± 9.10% and 57 ± 11.00%, for BF 30.10 ; BF 25.10 and control, respectively. was significantly differed among treatments compared to control diet. The data suggests that substituting high-protein (Control 45% CP) with low-protein (BF 25.10 and BF 30.10 ) feed in a biofloc dominated system operated with minimal discharge may provide an alternative to improve shrimp farming technology, through improved water quality, cheaper (lower protein) feed and reduced environmental impact. The biochemical composition of the biofloc treatments did not vary significantly. Biofloc grown on BF 25.10 had higher protein content (23 ± 7 % DW) than BF 30.10 treatment (18 ± 5 %DW). The composition of the PUFAs in the biofloc showed that the treatment of biofloc with BF 25.10 contained significantly more total n-3 PUFA and total n-6 PUFA than that with treatment of BF 30.10 . The results of the present study proofed that biofloc is a possible additional nutritious aquaculture feed for shrimp.

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Effects of two commercially available low-protein diets (21% and 31%) on water and sediment quality, and on the production of Litopenaeus vannamei in an outdoor tank system with limited water discharge

Cited by 30 publications

References 7 publications

Growth and nutrient uptake of the macroalga Gracilaria tikvahiae cultured with the shrimp Litopenaeus vannamei in an Integrated Multi-Trophic Aquaculture (IMTA) system

Growth and nutrient uptake of the macroalga Gracilaria tikvahiae cultured with the shrimp Litopenaeus vannamei in an Integrated Multi-Trophic Aquaculture (IMTA) system

Biofloc Technology (BFT): A Review for Aquaculture Application and Animal Food Industry

Sustainable Growth of Shrimp Aquaculture Through Biofloc Production as Alternative to Fishmeal in Shrimp Feeds

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