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| Provedor de dados: |
OceanDocs
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| País: |
Belgium
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| Título: |
Análisis financiero de una producción piloto del rotífero, Brachionus rotundiformis, con una dieta artificial
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| Autores: |
Alvarez-Lajonchére, L.
Sánchez-Téllez, J. L.
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| Data: |
2014-01-07
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| Ano: |
2013
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| Palavras-chave: |
Operational costs
Batch culture
Rotifers
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| Resumo: |
Se realizó un estudio piloto de cultivo intensivo por lotes en ciclos de cuatro días de rotíferos pequeños, Brachionus rotundiformis Tschugunoff, 1921, para la alimentación de peces marinos, basado en el uso de Culture Selco Plus® como alimento y oxígeno puro. Se aplicaron los mejores tratamientos de experimentos previos con oxígeno puro, flujo de agua abierto, uso de fibra sintética para la colecta de materia orgánica y el empleo de bombas dosificadoras para el suministro continuo del alimento. Con una densidad inicial de 252±21 rotíferos/ml se logró una densidad media de 1 595±53 rotíferos/ml a la cosecha, sin diferencias significativas entre las repeticiones (ANDEVA, P > 0,05). Los parámetros ambientales se mantuvieron estables e intervalos aceptables, con tasa de crecimiento de 0,36±0,05, fecundidad ≥ 0,3 y porcentajes de hembras con huevos mayores de 25 % al cuarto día. El análisis financiero mostró bajos gastos operacionales y los fundamentales fueron los de depreciación (49 %), suministros (42 %) y fuerza laboral (7 %), con un costo general sin incluir los gastos de empaque y del impuesto sobre las ventas, de $0,13/millón de rotíferos producidos para su utilización en la propia instalación. El punto de equilibrio en que se compensan los gastos y el valor de las posibles ventas, fue de 230 millones de rotíferos y el precio de compensación fue de $0,15. Estos resultados se comparan con los de otros reportes.
An intensive 4-day batch culture study of small rotifers, Brachionus rotundiformis Tschugunoff, 1921, to feed marine fish larvae was carried out, with Culture Selco Plus® as feed and pure oxygen. Best previous experimental treatments were applied, with pure oxygen, open flow, synthetic fiber for organic matter collection, metering pumps for feed supply and. With a stocking density of 252±21 rotifers/ml, a mean density of 1 595±53 rotifers/ml was reached at harvest, without significant differences between consecutive cycles. Environmental parameters were stable in acceptable intervals, with growth rate of 0.36±0.05, ≥ 0.3 fecundity, and ≥ 25 % of females with eggs. Financial study show low operational expenses, mostly depreciation (49 %), supplies (42 %) and labor costs (7 %). General operational cost, without packing expenses and income tax, was $0.13/million rotifers produced. Break-even point and break-even price were 230 million and $0.15 per million rotifers, respectively. These results are compared with other reports.
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| Tipo: |
Journal Contribution
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| Idioma: |
Espanhol
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| Identificador: |
Rev. Invest. Mar., 33 (2), p. 28-36
1991-6089
http://hdl.handle.net/1834/5250
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| Relação: |
http://www.cim.uh.cu/rim
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http://creativecommons.org/licenses/by-nc/3.0/
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