Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana)

In an attempt to better understand the problems in weaning larval fish to artificial diets, our lab has begun toinvestigate the role of the digestive hormone cholecystokinin (CCK). While there are a number of other labs alsoinvestigating CCK and other digestive hormones such as bombesin, PPY, and ga...

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Autores principales: Webb, Ken, Holt, Joan
Formato: Artículo
Lenguaje:inglés
Publicado: Facultad de Ciencias Biologicas 2008
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Acceso en línea:https://nutricionacuicola.uanl.mx/index.php/acu/article/view/136
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author Webb, Ken
Holt, Joan
author_facet Webb, Ken
Holt, Joan
author_sort Webb, Ken
collection Artículos de Revistas UANL
description In an attempt to better understand the problems in weaning larval fish to artificial diets, our lab has begun toinvestigate the role of the digestive hormone cholecystokinin (CCK). While there are a number of other labs alsoinvestigating CCK and other digestive hormones such as bombesin, PPY, and gastrin; research into the roles of thesehormones in fish is still in its infancy. Previous research with red drum larvae suggests that some component ofrotifers and algae enable red drum larvae to more efficiently utilize microparticulate diets than when these are notincluded in the culture system. The current study investigated the impact of soluble components of rotifers and algaeon the CCK and trypsin responses of larval red drum at 6 and 10 days post hatch (DPH). Introduction ofhomogenized rotifers was shown to significantly increase whole body CCK levels, CCK mRNA, and trypsin activityin 6 DPH red drum larvae, but not in 10 DPH larvae. Homogenates of Isochrysis galbana did not significantly affectCCK or trypsin at either age. This research suggests that there is a soluble component of rotifers that can upregulatedigestive function in larval red drum, at least in 6 DPH larvae.
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physical Avances en Nutrición Acuicola; 2008: Memorías del Noveno Simposium Internacional de Nutrición Acuícola Noviembre 24-27, 2008
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spelling nutrucionacuicola-article-1362019-10-22T22:38:53Z Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana) Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana) Webb, Ken Holt, Joan cholecystokinin trypsin digestive physiology cholecystokinin trypsin digestive physiology In an attempt to better understand the problems in weaning larval fish to artificial diets, our lab has begun toinvestigate the role of the digestive hormone cholecystokinin (CCK). While there are a number of other labs alsoinvestigating CCK and other digestive hormones such as bombesin, PPY, and gastrin; research into the roles of thesehormones in fish is still in its infancy. Previous research with red drum larvae suggests that some component ofrotifers and algae enable red drum larvae to more efficiently utilize microparticulate diets than when these are notincluded in the culture system. The current study investigated the impact of soluble components of rotifers and algaeon the CCK and trypsin responses of larval red drum at 6 and 10 days post hatch (DPH). Introduction ofhomogenized rotifers was shown to significantly increase whole body CCK levels, CCK mRNA, and trypsin activityin 6 DPH red drum larvae, but not in 10 DPH larvae. Homogenates of Isochrysis galbana did not significantly affectCCK or trypsin at either age. This research suggests that there is a soluble component of rotifers that can upregulatedigestive function in larval red drum, at least in 6 DPH larvae. In an attempt to better understand the problems in weaning larval fish to artificial diets, our lab has begun toinvestigate the role of the digestive hormone cholecystokinin (CCK). While there are a number of other labs alsoinvestigating CCK and other digestive hormones such as bombesin, PPY, and gastrin; research into the roles of thesehormones in fish is still in its infancy. Previous research with red drum larvae suggests that some component ofrotifers and algae enable red drum larvae to more efficiently utilize microparticulate diets than when these are notincluded in the culture system. The current study investigated the impact of soluble components of rotifers and algaeon the CCK and trypsin responses of larval red drum at 6 and 10 days post hatch (DPH). Introduction ofhomogenized rotifers was shown to significantly increase whole body CCK levels, CCK mRNA, and trypsin activityin 6 DPH red drum larvae, but not in 10 DPH larvae. Homogenates of Isochrysis galbana did not significantly affectCCK or trypsin at either age. This research suggests that there is a soluble component of rotifers that can upregulatedigestive function in larval red drum, at least in 6 DPH larvae. Facultad de Ciencias Biologicas 2008-11-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://nutricionacuicola.uanl.mx/index.php/acu/article/view/136 Avances en Nutrición Acuicola; 2008: Memorías del Noveno Simposium Internacional de Nutrición Acuícola Noviembre 24-27, 2008 eng https://nutricionacuicola.uanl.mx/index.php/acu/article/view/136/134 Derechos de autor 2019 Ken Webb, Joan Holt
spellingShingle cholecystokinin
trypsin
digestive physiology
cholecystokinin
trypsin
digestive physiology
Webb, Ken
Holt, Joan
Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana)
thumbnail https://rediab.uanl.mx/themes/sandal5/images/article.gif
title Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana)
title_alt Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana)
title_full Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana)
title_fullStr Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana)
title_full_unstemmed Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana)
title_short Cholecystokinin and Trypsin Responses of Larval Red Drum (Sciaenops Ocellatus) to Soluble Components of Rotifers (Brachionus Plicatilis) and Algae (Isochrysis Galbana)
title_sort cholecystokinin and trypsin responses of larval red drum sciaenops ocellatus to soluble components of rotifers brachionus plicatilis and algae isochrysis galbana
topic cholecystokinin
trypsin
digestive physiology
cholecystokinin
trypsin
digestive physiology
topic_facet cholecystokinin
trypsin
digestive physiology
cholecystokinin
trypsin
digestive physiology
url https://nutricionacuicola.uanl.mx/index.php/acu/article/view/136
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AT holtjoan cholecystokininandtrypsinresponsesoflarvalreddrumsciaenopsocellatustosolublecomponentsofrotifersbrachionusplicatilisandalgaeisochrysisgalbana