Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen ponds

ABSTRACT. The seeding rate is a factor that affects water quality, biological, physiological parameters, incidence of parasites and economic indicators. 72,000 fish of ± 1.9 ± 0.1 cm and 0.4 ± 0.01 g were planted in 12 ponds of 600 m² in densities of 5, 10 and 15 fish m-2. The fish were fed twice a...

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Autores principales:	Costa,Jesaias, Freitas,Roñan, Gomes,Ana Lúcia, Bernadino,Geraldo, Carneiro,Dalton, Martins,María Inez
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	Colossoma macropomum tambaqui fish-farming performance economic evaluation production cost Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000100018
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spelling	oai:scielo:S0718-560X20160001000182016-05-27Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen pondsCosta,JesaiasFreitas,RoñanGomes,Ana LúciaBernadino,GeraldoCarneiro,DaltonMartins,María Inez Colossoma macropomum tambaqui fish-farming performance economic evaluation production cost Brazil ABSTRACT. The seeding rate is a factor that affects water quality, biological, physiological parameters, incidence of parasites and economic indicators. 72,000 fish of ± 1.9 ± 0.1 cm and 0.4 ± 0.01 g were planted in 12 ponds of 600 m² in densities of 5, 10 and 15 fish m-2. The fish were fed twice a day until apparent satiation, with a commercial feed with 36% crude protein, for 56 days. The cost was determined based on the total production cost and total operational cost, showing unit values per hectare of water surface. Performance indicators were compared with ANOVA test with polynomial regression. The final number of fish showed a positive linear behavior, while the other performance parameters were not affected by density, thus suggesting that the pond's máximum stocking density was not reached. On investment and production costs the most representative items were nursery building and fry acquisition, respectively, which denotes that increasing seeding density positively affected the production process, improving all the economic indicators.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.44 n.1 20162016-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000100018en10.3856/vol44-issue1-fulltext-18
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Colossoma macropomum tambaqui fish-farming performance economic evaluation production cost Brazil
spellingShingle	Colossoma macropomum tambaqui fish-farming performance economic evaluation production cost Brazil Costa,Jesaias Freitas,Roñan Gomes,Ana Lúcia Bernadino,Geraldo Carneiro,Dalton Martins,María Inez Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen ponds
description	ABSTRACT. The seeding rate is a factor that affects water quality, biological, physiological parameters, incidence of parasites and economic indicators. 72,000 fish of ± 1.9 ± 0.1 cm and 0.4 ± 0.01 g were planted in 12 ponds of 600 m² in densities of 5, 10 and 15 fish m-2. The fish were fed twice a day until apparent satiation, with a commercial feed with 36% crude protein, for 56 days. The cost was determined based on the total production cost and total operational cost, showing unit values per hectare of water surface. Performance indicators were compared with ANOVA test with polynomial regression. The final number of fish showed a positive linear behavior, while the other performance parameters were not affected by density, thus suggesting that the pond's máximum stocking density was not reached. On investment and production costs the most representative items were nursery building and fry acquisition, respectively, which denotes that increasing seeding density positively affected the production process, improving all the economic indicators.
author	Costa,Jesaias Freitas,Roñan Gomes,Ana Lúcia Bernadino,Geraldo Carneiro,Dalton Martins,María Inez
author_facet	Costa,Jesaias Freitas,Roñan Gomes,Ana Lúcia Bernadino,Geraldo Carneiro,Dalton Martins,María Inez
author_sort	Costa,Jesaias
title	Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen ponds
title_short	Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen ponds
title_full	Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen ponds
title_fullStr	Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen ponds
title_full_unstemmed	Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen ponds
title_sort	effect of stocking density on economic performance for colossoma macropomum (cuvier, 1816), juvenile in earthen ponds
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000100018
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Effect of stocking density on economic performance for Colossoma macropomum (Cuvier, 1816), juvenile in earthen ponds

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