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Full-Text Articles in Animal Sciences
Can Alfalfa Nutrient Concentrate Serve As A Feed Ingredient For Feeding Juvenile Yellow Perch (Perca Flavescens)?, William J. Sullivan
Can Alfalfa Nutrient Concentrate Serve As A Feed Ingredient For Feeding Juvenile Yellow Perch (Perca Flavescens)?, William J. Sullivan
Theses and Dissertations
This study evaluated the potential of alfalfa nutrient concentrate (ANC) used in feed for yellow perch. We assessed the quality of ANC based on pellet functionality, digestibility, and growth performance of perch fed with diets including various levels of ANC (0-20 g/100 g diet) to replace fishmeal protein in a control diet based on a 9-week feeding with three replications per diet. Pellet bulk density, durability, water stability, and oil retention capacity increased with fishmeal replacement. Growth rate, feed conversion ratio, satiation feed intake, and protein retention were similar for fish fed different diets (P>0.05). Fish fed ANC-20 had …
Effects Of Temperature On Growth, Metabolic Rate, And Lower Dissolved Oxygen Tolerance Of Speckled Peacock Bass Cichla Temensis, Manuel E. Coffill-Rivera
Effects Of Temperature On Growth, Metabolic Rate, And Lower Dissolved Oxygen Tolerance Of Speckled Peacock Bass Cichla Temensis, Manuel E. Coffill-Rivera
Theses and Dissertations
I examined the effects of temperature (25, 30, and 35°C) on growth, standard metabolic rate (SMR), and lower dissolved oxygen tolerance (LDOT) of juvenile Speckled Peacock Bass Cichla temensis. Fish were acclimated to 150-L aquaria for 7 weeks before the growth, SMR, and LDOT experiments. The growth study lasted 58 days and fish acclimated to 25 and 30°C displayed similar growth rates, while fish acclimated to 35°C had very poor growth rates. The SMR and LDOT experiments were performed using intermittent respirometers. Fish acclimated to 25°C had the lowest SMR, followed by 30°C, and finally 35°C. The highest LDOT …
Modification Of Culture Medium And Identification Of Microbial Contaminants For Improved In Vitro Propagation Of Freshwater Mussels, Raquel M. Wetzell
Modification Of Culture Medium And Identification Of Microbial Contaminants For Improved In Vitro Propagation Of Freshwater Mussels, Raquel M. Wetzell
Theses and Dissertations
In vitro propagation efforts play an essential role in conserving and restoring threatened freshwater mussel populations by circumventing the need for a fish host. Across a broad range of taxa, transformation is induced with an artificial M199 medium and rabbit serum. However, such formulation may not be sufficient in culturing critical species with more specific physiological requirements. In this study, multiple serum mixtures were tested to improve in vitro transformation of two freshwater mussel species: yellow lampmussel (Lampsilis cariosa) and tidewater mucket (Atlantaconcha ochracea). These species were selected because they parasitize similar fish host species but …
The Role Of Phototaxis In The Initial Swim Bladder Inflation Of Larval Yellow Perch (Perca Flavescens)., Christopher Ryan Suchocki
The Role Of Phototaxis In The Initial Swim Bladder Inflation Of Larval Yellow Perch (Perca Flavescens)., Christopher Ryan Suchocki
Theses and Dissertations
The North Central Regional Aquaculture Center has designated the yellow perch (Perca flavescens) as a high priority species for culture. The demand for this species is high and it is estimated that the market could readily consume 50 to 100 million pounds per year. Tank culturing of yellow perch has several advantages over pond culture and this method has been growing in popularity, but is currently held back by problems in larval development. One of these problems, failed swim bladder inflation (SBI), is frequently reported in the literature as a bottleneck in the culture of many fishes. Unsuccessful SBI increases …
Development Of An Automated Detection System For Nitrite In Aquatic Environments, Tim Schierenbeck
Development Of An Automated Detection System For Nitrite In Aquatic Environments, Tim Schierenbeck
Theses and Dissertations
The main objective of the project is to develop an automated nitrite sensor for use in aquatic environments, and more specifically for use in recirculating aquaculture systems (RAS), where monitoring can help sustain a controlled environment, protect against nitrite intoxication, and promote fish health. Detecting nitrite manually with semi-quantitative colorimetric test kits, although inexpensive and simple, is prone to inter-user variability and poor sensitivity. An automated nitrite sensor has potential to provide higher resolution measurements at both concentration and time scales and can serve as a research tool for the study of filtration systems essential in maintaining a healthy RAS …