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Full-Text Articles in Animal Sciences
Fishing For The Right Probiotic: Investigating The Mechanism Of Mucosal-Bacterial Interactions At The Interface Of Health And Productivity In Salmonid Aquaculture, Luana Langlois
Electronic Thesis and Dissertation Repository
Aquaculture is vital for the global food supply, but the high incidence of infectious diseases threatens the industry’s productivity. The intestinal mucosa is a key port of entry for pathogens and provides an extensive interface for host-microbe interactions. Tight junctions are at the core of gut barrier function and the mucosal health of finfish. Disruption of these complexes gives rise to sepsis, which leads to systemic inflammation and death. The present study employs a combinatorial approach that integrates in vitro and in vivo analyses to gain actionable insights into the mechanism of microbial-mediated modulation of host health. The experiments outlined …
The Effects Of Crossbreeding And Low Fish Meal Diets On Growth-Related Traits In Chinook Salmon (Oncorhynchus Tshawytscha), Katarina H. Doughty
The Effects Of Crossbreeding And Low Fish Meal Diets On Growth-Related Traits In Chinook Salmon (Oncorhynchus Tshawytscha), Katarina H. Doughty
Electronic Thesis and Dissertation Repository
Growth rate is the most important trait that can be manipulated to create more efficient aquaculture. Crossbreeding, where different populations are bred, has the potential to increase performance through release from inbreeding depression. I crossed a farm population of Chinook salmon (Oncorhynchus tshawytscha) with seven wild populations, then compared growth rate, feed conversion efficiency, swimming speed and metabolic rate between the crossbred and original farmed lines. Crossbreeding resulted in increased growth rates, but had no effect on the other traits. I next evaluated the feasibility of using a diet that replaced fish meal with corn gluten meal and …