Immune Response and Resistance to Stress and Edwardsiella ictaluri Challenge in Channel Catfish, Ictalurus punctatus, Fed Diets Containing Commercial Whole‐Cell Yeast or Yeast Subcomponents
Abstract Dietary supplementation of yeast or yeast subcomponents (YYS) as commercial preparations of β‐glucan (MacroGard ® Biotec‐Mackzymal, Tromsø, Norway; and Betagard A ® Aqua‐In‐Tech, Inc., Seattle, WA, USA), mannan oligosaccharide (Bio‐Mos™ Aqua Grade; Alltech, Nicholasville, KY, USA), or whole...
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crwiley:10.1111/j.1749-7345.2006.00070.x 2024-06-23T07:57:14+00:00 Immune Response and Resistance to Stress and Edwardsiella ictaluri Challenge in Channel Catfish, Ictalurus punctatus, Fed Diets Containing Commercial Whole‐Cell Yeast or Yeast Subcomponents Welker, Thomas L. Lim, Chhorn Yildirim‐Aksoy, Mediha Shelby, Richard Klesius, Phillip H. 2007 http://dx.doi.org/10.1111/j.1749-7345.2006.00070.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1749-7345.2006.00070.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1749-7345.2006.00070.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of the World Aquaculture Society volume 38, issue 1, page 24-35 ISSN 0893-8849 1749-7345 journal-article 2007 crwiley https://doi.org/10.1111/j.1749-7345.2006.00070.x 2024-06-13T04:21:22Z Abstract Dietary supplementation of yeast or yeast subcomponents (YYS) as commercial preparations of β‐glucan (MacroGard ® Biotec‐Mackzymal, Tromsø, Norway; and Betagard A ® Aqua‐In‐Tech, Inc., Seattle, WA, USA), mannan oligosaccharide (Bio‐Mos™ Aqua Grade; Alltech, Nicholasville, KY, USA), or whole‐cell Saccharomyces cerevisiae (Levucell SB20 ® Lallemand Animal Nutrition, Milwaukee, WI, USA) at the manufacturer’s recommended levels was evaluated on the physiological performance of juvenile channel catfish, Ictalurus punctatus . Fish were fed YYS diets for 4 wk, followed by 2 wk of control diet. Fish were sampled at the end of each feeding period (4 and 6 wk) to measure hematological and immune parameters and growth and to determine the effects of dietary β‐glucan on resistance to Edwardsiella ictaluri infection and to low‐water stress (6 wk). Supplementation of YYS in diets did not affect growth performance, hematology, or immune function. Survival from E. ictaluri infection was from 5 to 17.5% higher in fish fed YYS diets than in the control group, but the increases were not significant. Some improvement in stress resistance was observed in YYS‐fed catfish after exposure to low‐water stress. Stress reduction in fish fed diets supplemented with yeast subcomponents has been reported previously, but thus far, no explanation has been proposed for this effect. The present study and the previously published research suggest that dietary YYS supplementation does not appear to improve resistance of channel catfish to E. ictaluri . Article in Journal/Newspaper Tromsø Wiley Online Library Lallemand ENVELOPE(-67.167,-67.167,-66.667,-66.667) Norway Tromsø Journal of the World Aquaculture Society 38 1 24 35 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Dietary supplementation of yeast or yeast subcomponents (YYS) as commercial preparations of β‐glucan (MacroGard ® Biotec‐Mackzymal, Tromsø, Norway; and Betagard A ® Aqua‐In‐Tech, Inc., Seattle, WA, USA), mannan oligosaccharide (Bio‐Mos™ Aqua Grade; Alltech, Nicholasville, KY, USA), or whole‐cell Saccharomyces cerevisiae (Levucell SB20 ® Lallemand Animal Nutrition, Milwaukee, WI, USA) at the manufacturer’s recommended levels was evaluated on the physiological performance of juvenile channel catfish, Ictalurus punctatus . Fish were fed YYS diets for 4 wk, followed by 2 wk of control diet. Fish were sampled at the end of each feeding period (4 and 6 wk) to measure hematological and immune parameters and growth and to determine the effects of dietary β‐glucan on resistance to Edwardsiella ictaluri infection and to low‐water stress (6 wk). Supplementation of YYS in diets did not affect growth performance, hematology, or immune function. Survival from E. ictaluri infection was from 5 to 17.5% higher in fish fed YYS diets than in the control group, but the increases were not significant. Some improvement in stress resistance was observed in YYS‐fed catfish after exposure to low‐water stress. Stress reduction in fish fed diets supplemented with yeast subcomponents has been reported previously, but thus far, no explanation has been proposed for this effect. The present study and the previously published research suggest that dietary YYS supplementation does not appear to improve resistance of channel catfish to E. ictaluri . |
format |
Article in Journal/Newspaper |
author |
Welker, Thomas L. Lim, Chhorn Yildirim‐Aksoy, Mediha Shelby, Richard Klesius, Phillip H. |
spellingShingle |
Welker, Thomas L. Lim, Chhorn Yildirim‐Aksoy, Mediha Shelby, Richard Klesius, Phillip H. Immune Response and Resistance to Stress and Edwardsiella ictaluri Challenge in Channel Catfish, Ictalurus punctatus, Fed Diets Containing Commercial Whole‐Cell Yeast or Yeast Subcomponents |
author_facet |
Welker, Thomas L. Lim, Chhorn Yildirim‐Aksoy, Mediha Shelby, Richard Klesius, Phillip H. |
author_sort |
Welker, Thomas L. |
title |
Immune Response and Resistance to Stress and Edwardsiella ictaluri Challenge in Channel Catfish, Ictalurus punctatus, Fed Diets Containing Commercial Whole‐Cell Yeast or Yeast Subcomponents |
title_short |
Immune Response and Resistance to Stress and Edwardsiella ictaluri Challenge in Channel Catfish, Ictalurus punctatus, Fed Diets Containing Commercial Whole‐Cell Yeast or Yeast Subcomponents |
title_full |
Immune Response and Resistance to Stress and Edwardsiella ictaluri Challenge in Channel Catfish, Ictalurus punctatus, Fed Diets Containing Commercial Whole‐Cell Yeast or Yeast Subcomponents |
title_fullStr |
Immune Response and Resistance to Stress and Edwardsiella ictaluri Challenge in Channel Catfish, Ictalurus punctatus, Fed Diets Containing Commercial Whole‐Cell Yeast or Yeast Subcomponents |
title_full_unstemmed |
Immune Response and Resistance to Stress and Edwardsiella ictaluri Challenge in Channel Catfish, Ictalurus punctatus, Fed Diets Containing Commercial Whole‐Cell Yeast or Yeast Subcomponents |
title_sort |
immune response and resistance to stress and edwardsiella ictaluri challenge in channel catfish, ictalurus punctatus, fed diets containing commercial whole‐cell yeast or yeast subcomponents |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1111/j.1749-7345.2006.00070.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1749-7345.2006.00070.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1749-7345.2006.00070.x |
long_lat |
ENVELOPE(-67.167,-67.167,-66.667,-66.667) |
geographic |
Lallemand Norway Tromsø |
geographic_facet |
Lallemand Norway Tromsø |
genre |
Tromsø |
genre_facet |
Tromsø |
op_source |
Journal of the World Aquaculture Society volume 38, issue 1, page 24-35 ISSN 0893-8849 1749-7345 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1749-7345.2006.00070.x |
container_title |
Journal of the World Aquaculture Society |
container_volume |
38 |
container_issue |
1 |
container_start_page |
24 |
op_container_end_page |
35 |
_version_ |
1802650781583671296 |