Search Results - "Walker, Seumas P"
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Genetic parameters and genotype-by-environment interaction estimates for growth and feed efficiency related traits in Chinook salmon, Oncorhynchus tshawytscha, reared under low and moderate flow regimes
Published in Genetics selection evolution (Paris) (12-09-2024)“…A genotype-by-environment (G × E) interaction is defined as genotypes responding differently to different environments. In salmonids, G × E interactions can…”
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Relationship between gut microbiota and Chinook salmon ( Oncorhynchus tshawytscha ) health and growth performance in freshwater recirculating aquaculture systems
Published in Frontiers in microbiology (07-02-2023)“…Gut microbiota play important roles in fish health and growth performance and the microbiome in fish has been shown to be a biomarker for stress. In this…”
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Characterising the Physiological Responses of Chinook Salmon (Oncorhynchus tshawytscha) Subjected to Heat and Oxygen Stress
Published in Biology (Basel, Switzerland) (01-10-2023)“…In New Zealand, during the hottest periods of the year, some salmon farms in the Marlborough Sounds reach water temperatures above the optimal range for…”
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Developing Successful Breeding Programs for New Zealand Aquaculture: A Perspective on Progress and Future Genomic Opportunities
Published in Frontiers in genetics (01-02-2019)“…Over the past 40 years New Zealand (NZ) aquaculture has grown into a significant primary industry. Tonnage is small on a global scale, but the industry has…”
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Genetic Parameter Estimates for Growth of Hāpuku (Groper, Polyprion oxygeneios) in Land-Based Aquaculture Using Random Regression Models
Published in Fishes (01-10-2024)“…Hāpuku (Polyprion oxygeneios) is a promising candidate for aquaculture production in New Zealand. Methods for spawning, juvenile production, and growout to…”
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Uncoupling Thermotolerance and Growth Performance in Chinook Salmon: Blood Biochemistry and Immune Capacity
Published in Metabolites (19-08-2021)“…Ocean warming and extreme sea surface temperature anomalies are threatening wild and domesticated fish stocks in various regions. Understanding mechanisms for…”
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Prediction of Feed Efficiency and Performance-Based Traits in Fish via Integration of Multiple Omics and Clinical Covariates
Published in Biology (Basel, Switzerland) (01-08-2023)“…Fish aquaculture is a rapidly expanding global industry, set to support growing demands for sources of marine protein. Enhancing feed efficiency (FE) in farmed…”
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Automated image analysis as a tool to measure individualised growth and population structure in Chinook salmon (Oncorhynchus tshawytscha)
Published in Aquaculture, fish and fisheries (01-10-2022)“…Selective breeding programmes depend on high‐quality measurements of phenotype and genotype with repeated individualised phenotype measurements throughout the…”
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The influence of temperature on performance, biological indices, composition, and nutrient retention of juvenile Chinook salmon (Oncorhynchus tshawytscha) reared in freshwater
Published in Comparative biochemistry and physiology. Part A, Molecular & integrative physiology (01-06-2023)“…This study investigated the effects of different temperatures on the performance, composition, and nutrient retention of Chinook salmon reared in freshwater…”
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Effects of fasting and temperature on the biological parameters, proximal composition, and fatty acid profile of Chinook salmon (Oncorhynchus tshawytscha) at different life stages
Published in Comparative biochemistry and physiology. Part A, Molecular & integrative physiology (01-02-2022)“…We investigated the effects of temperature and fasting on chinook salmon (Oncorhynchus tshawytscha) at different life stages. In the first stage, fish were…”
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Transcriptomic characterisation of a common skin lesion in farmed chinook salmon
Published in Fish & shellfish immunology (01-05-2022)“…Little is known about host responses of farmed Chinook salmon with skin lesions, despite the lesions being associated with increased water temperatures and…”
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Molecular evidence for stress, inflammation and structural changes in non-specific ulcers in skin of farmed Chinook salmon (Oncorhynchus tshawytscha)
Published in Fish & shellfish immunology (01-06-2023)“…Fish skin is critical to physical defence against pathogens and there is a need to understand the physiological processes impacting ulcers and their healing…”
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The microbiome of Chinook salmon (Oncorhynchus tshawytscha) in a recirculation aquaculture system
Published in Aquaculture (15-03-2021)“…The intestinal microbiome has recently been described for a variety of fish species and has been shown to influence host biology, including physiology, health…”
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A review of the nutritional requirements of chinook salmon (Oncorhynchus tshawytscha)
Published in New Zealand journal of marine and freshwater research (03-04-2023)“…Chinook salmon (Oncorhynchus tshawytscha), also referred to as King salmon, is a premium aquaculture species farmed in New Zealand and to a small extent in…”
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The relationships between specific dynamic action, nutrient retention and feed conversion ratio in farmed freshwater Chinook salmon (Oncorhynchus tshawytscha)
Published in Journal of fish biology (01-03-2023)“…Improving the feed conversion ratio (FCR; the amount of feed consumed relative to the amount of weight gain) can reduce both production costs and environmental…”
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Modeling the effects of ration on individual growth of Oncorhynchus tshawytscha under controlled conditions
Published in Journal of fish biology (01-11-2023)“…Fed aquaculture is one of the fastest-growing and most valuable food production industries in the world. The efficiency with which farmed fish convert feed…”
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Impact of acute handling stress, anaesthesia, and euthanasia on fish plasma biochemistry: implications for veterinary screening and metabolomic sampling
Published in Fish physiology and biochemistry (01-08-2019)“…Impacts of pre-sampling practices on fish plasma biochemistry may bias the outcome of a study if not considered within the general sampling strategy. Acute…”
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Protein metabolism in the liver and white muscle is associated with feed efficiency in Chinook salmon (Oncorhynchus tshawytscha) reared in seawater: Evidence from proteomic analysis
Published in Comparative biochemistry and physiology. Part D, Genomics & proteomics (01-06-2022)“…Understanding the molecular mechanisms that underlie differences in feed efficiency (FE) is an important step toward optimising growth and achieving…”
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Application of a Fourier transform—near infrared reflectance spectroscopy method for the rapid proximate analysis of the greenshell mussel (Perna canaliculus) and king (Chinook) salmon (Oncorhynchus tshawytscha)
Published in Aquaculture research (01-06-2019)“…Greenshell™ mussel (GSM, Perna canaliculus) and king (Chinook) salmon (Oncorhynchus tshawytscha) are New Zealand's two major aquaculture species generating…”
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Effects of commercial diets and temperature on the growth performance and stress response of hapuku (Polyprion oxygeneios)
Published in Aquaculture (01-02-2016)“…There is a growing interest in the development of hapuku (Polyprion oxygeneios) for aquaculture in New Zealand and Australia. This is driven by the high value…”
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