Pilot-scale production of the rotifer Brachionus sp. under different culture systems

Small Brachionus sp. (130-230 µm) in 2011-2012 and tiny Brachionus sp. (110-140 µm) in 2013-2014 were reared in batch culture (3 or 4 day cycles) and semi-continuous systems. For feeding rotifers, nonviable microalgae (Nannochloropsis sp.) were used and were continuously dosed with peristaltic pumps...

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Autores principales:	Rojo-Cebreros,Angel Humberto, Ibarra-Castro,Leonardo, Guerrero-Carlock,Ernesto, Sánchez-Téllez,Juan Luis, Alvarez-Lajonchère,Luis
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2017
Materias:	Batch culture system semi-continuous culture system operational cost analysis marine fish larvae
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572017000300011
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spelling	oai:scielo:S0718-195720170003000112018-02-22Pilot-scale production of the rotifer Brachionus sp. under different culture systemsRojo-Cebreros,Angel HumbertoIbarra-Castro,LeonardoGuerrero-Carlock,ErnestoSánchez-Téllez,Juan LuisAlvarez-Lajonchère,Luis Batch culture system semi-continuous culture system operational cost analysis marine fish larvae Small Brachionus sp. (130-230 µm) in 2011-2012 and tiny Brachionus sp. (110-140 µm) in 2013-2014 were reared in batch culture (3 or 4 day cycles) and semi-continuous systems. For feeding rotifers, nonviable microalgae (Nannochloropsis sp.) were used and were continuously dosed with peristaltic pumps. The cultures provided air, oxygen, and sodium hydroxymethanesulfonate. An average total daily production of 552, 602 and 459 million rotifers d-1 with mean final densities of 1,099 rotifers mL-1, 1,052 rotifers mL-1 and 1,015 rotifers mL-1 were harvested in three day (3-d) and four day (4-d) batch culture systems and semi-continuous culture systems, respectively. The average values of rotifers produced were adequate to supply the rotifers required in the parallel pilot rearing larval cycles, and 169 x 10³/yr (2012) to 564 x 10³ (2013) juveniles/yr were produced with a mean annual demand of 83.9 x 10(6) rotifers/1,000 juveniles produced. The total operational cost per million rotifers/day was lower for the semi-continuous culture system ($0.23), followed by the 4-d batch system ($0.55) and 3-d batch system ($0.59). These production costs were lower than those of other reports with artificial feeds and recirculation systems. The main components of the total operational cost was food (71-77%) and labor (7-11%). The best production stability and reliability were in the semi-continuous system, which best met the required daily quantities for the larval rearing trials. For possible improvements and increased production, the results are discussed in terms of financial efficiency.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.52 n.3 20172017-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572017000300011en10.4067/S0718-19572017000300011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Batch culture system semi-continuous culture system operational cost analysis marine fish larvae
spellingShingle	Batch culture system semi-continuous culture system operational cost analysis marine fish larvae Rojo-Cebreros,Angel Humberto Ibarra-Castro,Leonardo Guerrero-Carlock,Ernesto Sánchez-Téllez,Juan Luis Alvarez-Lajonchère,Luis Pilot-scale production of the rotifer Brachionus sp. under different culture systems
description	Small Brachionus sp. (130-230 µm) in 2011-2012 and tiny Brachionus sp. (110-140 µm) in 2013-2014 were reared in batch culture (3 or 4 day cycles) and semi-continuous systems. For feeding rotifers, nonviable microalgae (Nannochloropsis sp.) were used and were continuously dosed with peristaltic pumps. The cultures provided air, oxygen, and sodium hydroxymethanesulfonate. An average total daily production of 552, 602 and 459 million rotifers d-1 with mean final densities of 1,099 rotifers mL-1, 1,052 rotifers mL-1 and 1,015 rotifers mL-1 were harvested in three day (3-d) and four day (4-d) batch culture systems and semi-continuous culture systems, respectively. The average values of rotifers produced were adequate to supply the rotifers required in the parallel pilot rearing larval cycles, and 169 x 10³/yr (2012) to 564 x 10³ (2013) juveniles/yr were produced with a mean annual demand of 83.9 x 10(6) rotifers/1,000 juveniles produced. The total operational cost per million rotifers/day was lower for the semi-continuous culture system ($0.23), followed by the 4-d batch system ($0.55) and 3-d batch system ($0.59). These production costs were lower than those of other reports with artificial feeds and recirculation systems. The main components of the total operational cost was food (71-77%) and labor (7-11%). The best production stability and reliability were in the semi-continuous system, which best met the required daily quantities for the larval rearing trials. For possible improvements and increased production, the results are discussed in terms of financial efficiency.
author	Rojo-Cebreros,Angel Humberto Ibarra-Castro,Leonardo Guerrero-Carlock,Ernesto Sánchez-Téllez,Juan Luis Alvarez-Lajonchère,Luis
author_facet	Rojo-Cebreros,Angel Humberto Ibarra-Castro,Leonardo Guerrero-Carlock,Ernesto Sánchez-Téllez,Juan Luis Alvarez-Lajonchère,Luis
author_sort	Rojo-Cebreros,Angel Humberto
title	Pilot-scale production of the rotifer Brachionus sp. under different culture systems
title_short	Pilot-scale production of the rotifer Brachionus sp. under different culture systems
title_full	Pilot-scale production of the rotifer Brachionus sp. under different culture systems
title_fullStr	Pilot-scale production of the rotifer Brachionus sp. under different culture systems
title_full_unstemmed	Pilot-scale production of the rotifer Brachionus sp. under different culture systems
title_sort	pilot-scale production of the rotifer brachionus sp. under different culture systems
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572017000300011
work_keys_str_mv	AT rojocebrerosangelhumberto pilotscaleproductionoftherotiferbrachionusspunderdifferentculturesystems AT ibarracastroleonardo pilotscaleproductionoftherotiferbrachionusspunderdifferentculturesystems AT guerrerocarlockernesto pilotscaleproductionoftherotiferbrachionusspunderdifferentculturesystems AT sancheztellezjuanluis pilotscaleproductionoftherotiferbrachionusspunderdifferentculturesystems AT alvarezlajonchereluis pilotscaleproductionoftherotiferbrachionusspunderdifferentculturesystems
_version_	1714202374201933824

Pilot-scale production of the rotifer Brachionus sp. under different culture systems

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