Title |
Disease resistance of pacu Piaractus mesopotamicus (Holmberg, 1887) fed with β-glucan
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Published in |
Brazilian Journal of Biology, August 2014
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DOI | 10.1590/bjb.2014.0083 |
Pubmed ID | |
Authors |
JD Biller-Takahashi, LS Takahashi, CM Marzocchi-Machado, FS Zanuzzo, EC Urbinati |
Abstract |
Effects of β-glucan on innate immune responses and survival were studied in pacu experimentally infected with Aeromonas hydrophila. Fish fed diets containing 0, 0.1% and 1% β-glucan were injected with A. hydrophila. β-glucan enhanced fish survival in both treated groups (26.7% and 21.2% of the control, respectively). Leukocyte respiratory burst and alternative complement pathway activities were elevated after bacterial challenge regardless the β-glucan concentration. Lysozyme activity was higher after infection and showed a gradual increase as β-glucan concentration increased. A significant elevation in WBC count was observed either after bacterial challenge or by influence of β-glucan separately. The same response was observed in the number of thrombocytes, lymphocytes, eosinophils, LG-PAS positive cell and monocytes. It can be concluded that feeding pacu with β-glucan can increase protection against A. hydrophila, due to changes in non-specific immune responses. |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 36 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 6 | 17% |
Student > Bachelor | 5 | 14% |
Other | 2 | 6% |
Professor | 2 | 6% |
Student > Master | 2 | 6% |
Other | 5 | 14% |
Unknown | 14 | 39% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 9 | 25% |
Veterinary Science and Veterinary Medicine | 3 | 8% |
Pharmacology, Toxicology and Pharmaceutical Science | 2 | 6% |
Biochemistry, Genetics and Molecular Biology | 2 | 6% |
Engineering | 2 | 6% |
Other | 3 | 8% |
Unknown | 15 | 42% |