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Effects of immunostimulants on ranched southern bluefin tuna Thunnus maccoyii: immune response, health and performance
Citation
Kirchhoff, NT and Antignana, T and Leef, MJ and Hayward, CJ and Wilkinson, Ryan and Nowak, BF, Effects of immunostimulants on ranched southern bluefin tuna Thunnus maccoyii: immune response, health and performance, Journal of Fish Biology, 79, (2) pp. 331-355. ISSN 0022-1112 (2011) [Refereed Article]
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Copyright Statement
The definitive published version is available online at: http://www3.interscience.wiley.com/
DOI: doi:10.1111/j.1095-8649.2011.03019.x
Abstract
Ranched southern bluefin tuna Thunnus maccoyii were fed baitfishes supplemented with vitamins (predominantly E and C) or vitamins and immunostimulants, nucleotides and β-glucans, over 12 weeks after transfer and monitored for enhancement in immune response, health and performance through their 19 week grow-out period. Fish from two different tows were sampled separately at three different sampling points: at transfer to grow-out pontoons, at 8 weeks post-transfer and at harvest, 19 weeks post-transfer. Lysozyme activity was enhanced during vitamin supplementation compared to control fish. Performance (i.e. survival, condition index and crude fat), health (i.e. blood plasma variables including pH, osmolality, cortisol, lactate and glucose) and alternative complement activity were not commonly improved through diet supplementation. There were some tow-specific improvements in performance through vitamin supplementation including survival, selected parasite prevalence and intensity, and alternative complement activity. Immunostimulant supplementation also showed a tow-specific improvement in plasma cortisol level. Tow-specific responses may suggest that life history, previous health condition and husbandry can affect the success of vitamin and immunostimulant enhancement of immune response, health and performance of ranched T. maccoyii.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | β-glucan; baitfishes; nucleotide; vitamin C; vitamin E |
| Research Division: | Agricultural, Veterinary and Food Sciences |
| Research Group: | Fisheries sciences |
| Research Field: | Fish pests and diseases |
| Objective Division: | Animal Production and Animal Primary Products |
| Objective Group: | Fisheries - wild caught |
| Objective Field: | Wild caught tuna |
| UTAS Author: | Kirchhoff, NT (Ms Nicole Kirchhoff) |
| UTAS Author: | Leef, MJ (Dr Melanie Leef) |
| UTAS Author: | Wilkinson, Ryan (Dr Ryan Wilkinson) |
| UTAS Author: | Nowak, BF (Professor Barbara Nowak) |
| ID Code: | 72004 |
| Year Published: | 2011 |
| Web of Science® Times Cited: | 15 |
| Deposited By: | NC Marine Conservation and Resource Sustainability |
| Deposited On: | 2011-08-18 |
| Last Modified: | 2017-11-03 |
| Downloads: | 4 View Download Statistics |
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