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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
12/09/2012 |
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Data da última atualização: |
12/09/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
BOLL, M. G.; SCHAPPO, C. L.; LEUNG, P. |
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Afiliação: |
Epagri |
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Título: |
Assessing fish production efficiency in ponds under the DEA approach: An integrated polyculture case study. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: WORLD AQUACULTURE MEETING - AQUA 2006, Florence, Italy. Abstracts... Baton ROuge, Lousiana, USA: World Aquaculture Society, 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
This paper is a first attempt to assess aquaculture efficiency on an individual pond basis using the Data Envelopment Analysis (DEA) technique. While DEA is commonly employed in firm efficiency studies, the main novelty behind our approach is that instead of firms we treat each pond as a decision making unit (DMU). In fact operating variables such as fish stocking, feeding and labor are collected on a pond by pond basis, rather than for the whole farm. Detailed data were obtained from extension agent (EPAGRI) for output (profit) and input (seed, feed, labor, and manure) in 87 integrated fish polyculture runs distributed in 18 farms located in the Alto Vale do Itajai Region, Brazil. Main fish species stocked in the polyculture ponds is Nile tilapia (86%), with the remaining 14% being divided with at least 2 out of 4 of the following fish groups: a) common carp; b) filter feeding carps; c) grass carp; and d) catfish. To reduce production costs, vertical integration with commercial swine production is accomplished throughout the production cycle. Formula feed is introduced to the ponds 2 months after stocking. |
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Palavras-Chave: |
Brazil; DEA; Fish culture; Polyculture; Santa Catarina. |
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Categoria do assunto: |
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Marc: |
LEADER 01712naa a2200181 a 4500
001 1086848
005 2012-09-12
008 2006 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aAssessing fish production efficiency in ponds under the DEA approach$bAn integrated polyculture case study.
260 $c2006
520 $aThis paper is a first attempt to assess aquaculture efficiency on an individual pond basis using the Data Envelopment Analysis (DEA) technique. While DEA is commonly employed in firm efficiency studies, the main novelty behind our approach is that instead of firms we treat each pond as a decision making unit (DMU). In fact operating variables such as fish stocking, feeding and labor are collected on a pond by pond basis, rather than for the whole farm. Detailed data were obtained from extension agent (EPAGRI) for output (profit) and input (seed, feed, labor, and manure) in 87 integrated fish polyculture runs distributed in 18 farms located in the Alto Vale do Itajai Region, Brazil. Main fish species stocked in the polyculture ponds is Nile tilapia (86%), with the remaining 14% being divided with at least 2 out of 4 of the following fish groups: a) common carp; b) filter feeding carps; c) grass carp; and d) catfish. To reduce production costs, vertical integration with commercial swine production is accomplished throughout the production cycle. Formula feed is introduced to the ponds 2 months after stocking.
653 $aBrazil
653 $aDEA
653 $aFish culture
653 $aPolyculture
653 $aSanta Catarina
773 $tIn: WORLD AQUACULTURE MEETING - AQUA 2006, Florence, Italy. Abstracts... Baton ROuge, Lousiana, USA: World Aquaculture Society, 2006.
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Epagri-Sede (Epagri-Sede) |
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| Registros recuperados : 6 | |
| 1. |  | SCHAPPO, C.L.; TAMASSIA, S.T.J. Modelo alto vale do Itajai de piscicultura integrada - (1) caracterizacao geral e alguns parametros operacionais. In: SIMPOSIO BRASILEIRO DE AQUICULTURA, 11. ENCONTRO SULBRASILEIRO DE AQUICULTURA, 4. ENCONTRO CATARINENSE DE AQUICULTURA, 5. FESTIVAL NACIONAL DA OSTRA E DA CULTURA ACORIANA, 2, 2000, Florianopolis, SC. Anais... Florianopolis: BMLP, 2000. CD-ROM.| Biblioteca(s): Epagri-Sede. |
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| 4. | | RORIG, L.R.; TAMANAHA, M.da S.; GARCIA, M.; TAMASSIA, S.T.J.; SCHAPPO, C.L. Modelo Alto Vale do Itajai de piscicultura integrada: (6) composicao e estrutura das assembleias fitoplantonicas e sua relacao com variaveis fisico-quimicas da agua. In: SIMPOSIO BRASILEIRO DE AQUICULTURA, 12., 2002, Goiania, GO. Anais, resumos e palestras... Goiania: Abraq, 2002. p.215| Biblioteca(s): Epagri-Sede. |
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| 5. | | TAMASSIA, S.T.J.; GRAEFF, A.; SCHAPPO, C.L.; APPEL, H.B.; AMARAL JR., H.; CASACA, J.de M.; TOMAZELLI JR., O. Ciprinicultura - o modelo de Santa Catarina. In: CYRINO, J. E. P.; URBINATI, E. C.; FRACALOSSI, D. M.; CASTAGNOLLI, N. (Eds.). Topicos especiais em piscicultura de agua doce tropical intensiva. Sao Paulo: TecArt, 2004. p.267-305.| Tipo: Capítulo em Livro Técnico-Científico | Circulação/Nível: -- - -- |
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| 6. | | TAMASSIA, S. T. J.; GRAEFF, A.; SCHAPPO, C. L.; APPEL, H. B.; AMARAL JÚNIOR, H.; CASACA, J. M.; KNIESS, V.; TOMAZELLI JÚNIOR, O. Ciprinicultura: modelo de Santa Catarina. In: CYRINO, J. E. P. et al. Topicos especiais em piscicultura de água doce tropical intensiva. São Paulo: TecArt, 2004. p. 267-308.| Tipo: Capítulo em Livro Técnico-Científico | Circulação/Nível: -- - -- |
| Biblioteca(s): Epagri-Sede. |
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| Registros recuperados : 6 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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