Ontario cage culture operations produce the majority of farmed rainbow trout in Canada, using a diverse range of management practices that are expected to result in substantial variation in trout performance across the industry. A preliminary survey of performance data was undertaken, resulting in data from 5 commercial sites between 2008 and 2012. Commercial performance was somewhat poorer than expected, particularly for mortality rates, thermal-unit growth coefficients, and economic feed conversion ratios (average weighted values of 12%, 0.165, and 1.36, respectively). Substantial variability in all performance parameters within and across operations suggests that continued production monitoring and benchmarking could be highly valuable for improving the economic sustainability of the sector. For future benchmarking efforts to be effective, improvement and standardization of data collection methods is needed. As such, a number of recommendations are provided to the industry for the refinement and standardization of performance recording protocols used by Ontario producers.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:OGU.10214/6750 |
| Date | 16 May 2013 |
| Creators | Skipper-Horton, James Owen |
| Contributors | Bureau, Dominique |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Thesis |
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