Observations on the chemical composition of some commercial prawn feeds and associated growth responses in Penaeus monodon

Sarac, Z.; Thaggard, H.; Saunders, J.; Gravel, Marie-Ange; Neill, AR; Cowan, RT

doi:10.1016/0044-8486(93)90361-2

Cited by 27 publications

(13 citation statements)

References 18 publications

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“…Only small losses occurred after about 2 h submergence in water and the response was similar for all the diets. Similar results have been reported for other crustacean feeds (Balazs et al, 1973;Cuzon et al, 1982;Bordner et al, 1986;Lim and Dominy, 1990;Sarac et al, 1993). Simultaneous variation in the inclusion level of several ingredients, make it difficult to precisely interpret the results for pellet stability.…”

Section: Discussionsupporting

confidence: 68%

“…Manufactured feeds are frequently a major component of the cost of culturing crustaceans (New, 1976a;b;Akiyama, 1988;Tacon, 1993) and can contribute from 20-55% of the total operating costs (Sheen and D'Abramo, 1991;Sarac et al, 1993), depending on the species and the method of production. Feed cost for yabbies grown semi-intensively in earthen ponds has been estimated to be only 16% of production costs (Staniford and Kuzenocovs, 1988), but the economic model developed was based on low protein lucerne pellets fed at irregular intervals.…”

Section: Introductionmentioning

confidence: 99%

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Effects of replacement of animal protein by soybean meal on growth and carcass composition in juvenile Australian freshwater crayfish

1996

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A feed trial was conducted for 59 days with juvenile Cherax destructor, mean weight (SE) 0.61 (0.01) g, reared communally and maintained on 16 isoenergetic diets containing crude protein levels of 15, 20, 25, and 30%. For each protein level the fish meal component was replaced by soybean meal to produce diets in which 0, 20, 40, or 60% of the protein originated from soybean meal. Mean percentage weight gain per day ranged from 2.98% (15% protein, 60% soybean meal diet), to 11.75% (30% protein, 40% soybean meal diet). When soybean meal was included at a level of 40-60%, growth rate was reduced relative to that achieved with control diets at 15% and 20% protein levels. In no case did a 20% substitution significantly affect growth over that achieved with controls. A two-way interaction occurred between dietary protein and the level of dietary soybean meal. Feeds of higher protein content appeared to permit higher soybean meal inclusion levels without significantly affecting growth. Increases of 5% protein produced a significant improvement in growth when soybean meal contributed from 40-60% of the total protein. This effect was less pronounced in the control diets and the 20% soybean meal series. The percentages of protein increased and lipid decreased in the carcass as the level of dietary protein increased. A similar effect occurred by increasing the soybean meal substitution level to 60%. An obvious trend in carcass moisture, energy, and ash did not occur. A protein requirement of 30% is apparent when fish meal and soybean meal are included in diets at levels of 20% and 24% respectively. A maximum weight of 14.13 g was recorded for an individual fed the 30% protein, 20% soybean meal diet.

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Section: Discussionsupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Effects of replacement of animal protein by soybean meal on growth and carcass composition in juvenile Australian freshwater crayfish

1996

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“…Most of the amount of dry matter loss was evident after 2-4 h for all the diets. After that period of time, there was a lower and gradual increase of the dry matter loss up to 8 h. A similar trend was also observed by SARAC et al (1993) using a commercial feed for prawns and by CUZON et al (1982) in Paeneus Japonicus. In contrast, JONES et al (1996a, b) reported a high dry matter loss 1 h after the addition of the pellets to the water and only small losses occurred after 2 h.…”

Section: Discussionsupporting

confidence: 64%

Comparison Among Pre-Gelatinized Starches of Different Botanical Origins Used in Noble Crayfish Astacus Astacus Diets

D’Agaro

Mecatti

2006

Bull. Fr. Pêche Piscic.

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The objective of the present experiment was to compare the biological value and the binding functionality of four pre-gelatinized starches (wheat, diet 1; waxy maize, diet 2; maize, diet 3 and potato, diet 4) used in crayfish diets. 360 juvenile of A. astacus (initial b.w.: 0.70 ± 0.15 g) were cultured in 12 tanks for 43d. Growth performance were significantly higher in crayfish fed diets containing wheat and waxy maize compared to those containing maize and potato pre-gelatinized starches. Disintegration in water and shear force tests of diets confirmed the superior binding capability of pre-gelatinized starches obtained from wheat and waxy maize. These results suggest that the pregelatinized wheat and waxy maize starches are the best choice for the production of diets for the noble crayfish.

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“…As concentrações de componentes nitrogenados como nitrito e nitrato em águas efluentes de viveiros de carcinicultura são amplamente estudadas, dado os possíveis impactos que a atividade produtiva pode causar no ambiente externo caso haja acumulação de forma excessiva desses compostos durante o ciclo de produção (LACERDA, 2006;JACKSON et al, 2011;BRIGGS & FUNGE-SMITH, 1994;SARAC et al, 1993). Para as concentrações de nitrito encontradas, foi identificado não haver diferença significativa entre as concentrações dos parâmetros nas águas afluentes e efluentes dos viveiros de produção, bem como elas apresentaram conformidade com Clorofila "a" <1,00 <1,00 <1,00 <1,00 <1,00 <1,00 <1,00 <1,00 <1,00 <1,00…”

Section: Parâmetros Físico-químicosunclassified

Padrões hidrobiológicos como indicadores ambientais em águas afluentes e efluentes de viveiros de carcinicultura marinha no estado do Ceará

Bezerra

Lustosa

Neto³

et al. 2016

Rev. Bras. Ciênc. Ambient. (Online)

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RESUMOUma das formas de verificar os impactos ambientais da criação de camarões (carcinicultura) é pela análise sistêmica das águas afluentes e efluentes de seus viveiros de produção. O objetivo deste trabalho foi caracterizar afluentes e efluentes da carcinicultura por meio de seus parâmetros físicos, químicos e biológicos e suas concentrações, adotando um regime temporal de coleta de amostras nas diferentes estações climáticas do ano. As metodologias e os padrões de referência na pesquisa estão respaldados pela legislação ambiental vigente. Os resultados indicaram que não houve diferenças significativas entre as concentrações dos parâmetros avaliados das águas afluentes e efluentes. Indicaram também a inaplicabilidade da legislação ambiental em vigor, que não considera nossas particularidades ambientais regionais, já que algumas concentrações dos parâmetros de qualidade de afluentes se encontram em desconformidade com essa legislação, o que tem causado dificuldades na avaliação ambiental dos órgãos licenciadores sobre a atividade no Ceará.Palavras-chave: qualidade de água; indicadores; carcinicultura. ABSTRACTOne of the ways to verify environmental impacts of shrimp farming is through the systemic analysis of influent and effluents waters ponds. The aim of this work was to characterize these variables through its physical, chemical and biological parameters and their concentrations, adopting a temporal scheme of samples collection in different climate stations of the year. Methodologies and reference standards in research are supported by current environmental legislation. Results showed that there were no significant differences between the concentrations of these parameters between the influent and effluent waters. They, furthermore, indicate a inapplicability of current environmental legislation in Brazil, which does not consider our regional environmental characteristics, because the quality of the affluent waters were already in disagreement with the Brazilian environmental legislation, which has caused conflicts of interpretation in the environmental assessment of the shrimp culture in Ceará, Brazil.

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Observations on the chemical composition of some commercial prawn feeds and associated growth responses in Penaeus monodon

Cited by 27 publications

References 18 publications

Effects of replacement of animal protein by soybean meal on growth and carcass composition in juvenile Australian freshwater crayfish

Effects of replacement of animal protein by soybean meal on growth and carcass composition in juvenile Australian freshwater crayfish

Comparison Among Pre-Gelatinized Starches of Different Botanical Origins Used in Noble Crayfish Astacus Astacus Diets

Padrões hidrobiológicos como indicadores ambientais em águas afluentes e efluentes de viveiros de carcinicultura marinha no estado do Ceará

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