Publications in VIVO

Co-author Network

Co-investigator Network

Ronald W Hardy Director, Aquaculture Research Institute & Professor

Positions

Director, Aquaculture Research Institute , College of Natural Resources
Professor, Animal, Veterinary & Food Sciences , College of Agricultural & Life Sciences

Hardy is an expert in animal nutrition, specifically fish nutrition and serves as the Director of the Aquaculture Research Institute. He oversees the activities of 40 scientists and staff, with most supported by research grants, for which he is responsible.

Research Areas

Geographic Focus

Chile Country

Publications

selected publications

abstract
- Genetic variation within the selenoproteome influences anxiety-related behaviors in zebrafish (Danio rerio). FASEB Journal. 2013
- Effect of somatostatin-14 (SS-14) and passive immunization against SS-14 on circulating levels of growth hormone (GH) in rainbow trout 2001
academic article
- Improved Performance of a Rainbow Trout Selected Strain is Associated with Protein Digestion Rates and Synchronization of Amino Acid Absorption. Scientific Reports. 10:4678. 2020
- Apparent digestibility of protein, amino acids and gross energy in rainbow trout fed various feed ingredients with or without protease. Aquaculture. 524:735270. 2020
- Comparative evaluation of processed soybean meal (EnzoMeal (TM)) vs. regular soybean meal as a fishmeal replacement in diets of rainbow trout (Oncorhynchus mykiss): Effects on growth performance and growth-related genes. Aquaculture. 516:UNSP 734652. 2020
- Fishmeal alternative from renewable CO(2)for rainbow trout feed. Aquaculture Research. 2020
- Effects of lowering dietary fishmeal and crude protein levels on growth performance, body composition, muscle metabolic gene expression, and chronic stress response of rainbow trout (Oncorhynchus mykiss). Aquaculture. 513:734435. 2019
- Enhancing fish performance in aquaculture. American Society of Animal Science. 6:42-49. 2016
- Effect of anthocyanidins on myogenic differentiation in induced and non-induced primary myoblasts from rainbow trout (Oncorhynchus mykiss). Comparative Biochemistry and Physiology. Part B, Biochemistry and Molecular Biology. 196:102-108. 2016
- Energy composition of diet affects muscle fiber recruitment, body composition, and growth trajectory in rainbow trout (Oncorhynchus mykiss). Aquaculture. 457:1-14. 2016
- Effects of anthocyanidins on myogenic differentiation and antioxidant defense in primary myogenic cells isolated from rainbow trout (Oncorhynchus mykiss). Aquaculture. 454:81-89. 2016
- Alternative protein blends as a replacement for fish meal in diets for white seabass, Atractoscion nobilis. Aquaculture Nutrition. 21:861-867. 2015
- Evaluation of apparent digestibility coefficients of individual feed ingredients in spotted rose snapper Lutjanus guttatus (Steindachner, 1869). Aquaculture Nutrition. 21:835-842. 2015
- Comparative characterization of protease activity in cultured spotted rose snapper juveniles (Lutjanus guttatus). Latin American Journal of Aquatic Research. 43:641-650. 2015
- Dietary Intake of Purple Corn Extract Reduces Fat Body Content and Improves Antioxidant Capacity and n-3 Polyunsaturated Fatty Acid Profile in Plasma of Rainbow Trout, Oncorhynchus mykiss. Journal of The World Aquaculture Society. 46:381-394. 2015
- Experimental Determination of the Limits of Using Stable Isotopes to Distinguish Steelhead and Rainbow Trout Offspring. North American Journal of Fisheries Management. 35:810-817. 2015
- Salmon testes meal as a functional feed additive in fish meal and plant protein-based diets for rainbow trout (Oncorhynchus mykiss Walbaum) and Nile tilapia (Oreochromis niloticus L.) fry. Aquaculture Research. 46:1590-1596. 2015
- Evaluation of tuna by-product meal as a protein source in feeds for juvenile spotted rose snapper Lutjanus guttatus. Aquaculture Nutrition. 20:574-582. 2014
- The potential of pet-grade poultry by-product meal to replace fish meal in the diet of the juvenile spotted rose snapper Lutjanus guttatus (Steindachner, 1869). Aquaculture Nutrition. 20:623-631. 2014
- The potential of pet-grade poultry by-product meal to replace fish meal in the diet of the juvenile spotted rose snapper Lutjanus guttatus (Steindachner, 1869). Aquaculture Nutrition. 20:623-631. 2014
- Dietary inclusion of salmon testes meal from Alaskan seafood processing byproducts: Effects on growth and immune function of rainbow trout, Oncorhynchus mykiss (Walbaum). Aquaculture. 433:34-39. 2014
- Dietary inclusion of salmon testes meal from Alaskan seafood processing byproducts: Effects on growth and immune function of rainbow trout, Oncorhynchus mykiss (Walbaum). Aquaculture. 433:34-39. 2014
- Heat Shock Protein Regulation in Rainbow Trout, Oncorhynchus mykiss, is Altered by Dietary Soybean Meal Inclusion and Anti-Phopholipase A(2) Antibody. Journal of The World Aquaculture Society. 44:655-668. 2013
- Sex-specific transcriptional responses of the zebrafish (Danio rerio) brain selenoproteome to acute sodium selenite supplementation. Physiological Genomics. 45:653-666. 2013
- Glycated hemoglobin is not an accurate indicator of glycemia in rainbow trout. Comparative Biochemistry and Physiology. Part A, Molecular and Integrative Physiology. 165:343-52. 2013
- Effect and interaction of rainbow trout strain (Oncorhynchus mykiss) and diet type on growth and nutrient retention. Aquaculture Research. 44:604-611. 2013
- Thermal adaptation and acclimation of ectotherms from differing aquatic climates. Molecular Ecology. 22:3090-3097. 2013
- Use of tuna industry waste in diets for Nile tilapia, Oreochromis niloticus, fingerlings: effect on digestibility and growth performance. Latin American Journal of Aquatic Research. 41:468-478. 2013
- The effect of substituting fish meal with soybean meal on growth, feed efficiency, body composition and blood chemistry in juvenile spotted rose snapper Lutjanus guttatus (Steindachner, 1869). Aquaculture. 364:180-185. 2012
- Effects of carnosine supplementation to an all-plant protein diet for rainbow trout (Oncorhynchus mykiss). Aquaculture. 338:72-81. 2012
- Effects of carnosine supplementation to an all-plant protein diet for rainbow trout (Oncorhynchus mykiss). Aquaculture. 338:72-81. 2012
- Replacing fishmeal with blends of alternative proteins on growth performance of rainbow trout (Oncorhynchus mykiss), and early or late stage juvenile Atlantic salmon (Salmo salar). Aquaculture. 334:110-116. 2012
- Dietary protein source significantly alters growth performance, plasma variables and hepatic gene expression in rainbow trout (Oncorhynchus mykiss) fed amino acid balanced diets. Aquaculture. 356:223-234. 2012
- Atlantic Salmon (Salmo salar): The "Super-Chicken" of the Sea?. Reviews In Fisheries Science. 19:257-278. 2011
- Enhancing highly unsaturated omega-3 fatty acids in phase-fed rainbow trout (Oncorhynchus mykiss) using Alaskan fish oils. Aquaculture Nutrition. 17:E501-E510. 2011
- The effects of phase-feeding rainbow trout (Oncorhynchus mykiss) with canola oil and Alaskan pollock fish oil on fillet fatty acid composition and sensory attributes. Aquaculture Nutrition. 17:E521-E529. 2011
- Evaluation of 100% Fish Meal Substitution with Chicken Concentrate, Protein Poultry By-Product Blend, and Chicken and Egg Concentrate on Growth and Disease Resistance of Juvenile Rainbow Trout, Oncorhynchus mykiss. Journal of The World Aquaculture Society. 42:46-55. 2011
- Enhancement of shrimp Litopenaeus vannamei diets based on terrestrial protein sources via the inclusion of tuna by-product protein hydrolysates. Aquaculture. 317:117-123. 2011
- Evaluation of supplemental fish bone meal made from Alaska seafood processing byproducts and dicalcium phosphate in plant protein based diets for rainbow trout (Oncorhynchus mykiss). Aquaculture. 302:248-255. 2010
- Complete replacement of fish meal by porcine and poultry by-product meals in practical diets for fingerling Nile tilapia Oreochromis niloticus: digestibility and growth performance. Aquaculture Nutrition. 16:44-53. 2010
- Effects of Dietary Selenomethionine on Cutthroat Trout (Oncorhynchus clarki bouvieri) Growth and Reproductive Performance Over a Life Cycle. Archives of Environmental Contamination and Toxicology. 58:237-245. 2010
- Proximate Composition and Fatty Acid Differences in Hatchery-Reared and Wild Snake River Sockeye Salmon Overwintering in Nursery Lakes. North American Journal of Fisheries Management. 30:530-537. 2010
- Utilization of plant proteins in fish diets: effects of global demand and supplies of fishmeal. Aquaculture Research. 41:770-776. 2010
- Zebrafish (Danio rerio) vary by strain and sex in their behavioral and transcriptional responses to selenium supplementation. Comparative Biochemistry and Physiology. Part A, Molecular and Integrative Physiology. 157:310-318. 2010
- Dietary Protein Source and Level Affects Growth in Neon Tetras. North American Journal of Aquaculture. 71:320-324. 2009
- Dietary carbohydrate level affects transcription factor expression that regulates skeletal muscle myogenesis in rainbow trout. Comparative Biochemistry and Physiology. Part B, Biochemistry and Molecular Biology. 153:66-72. 2009
- Feeding aquaculture in an era of finite resources. Proceedings of the National Academy of Sciences of the United States of America. 106:15103-15110. 2009
- Growth parameters of wild and selected strains of Atlantic salmon, Salmo salar, on two experimental diets. Aquaculture. 297:136-140. 2009
- Chemical characterization of testes meals made from Alaska's seafood processing byproducts. Journal of Aquatic Food Product Technology. 17:195-211. 2008
- The effects of dietary protein : energy ratio and amino acid pattern on nitrogen utilization and excretion of rainbow trout Oncorhynchus mykiss (Walbaum). Journal of Fish Biology. 73:663-682. 2008
- Expression of the oligopeptide transporter, PepT1, in larval Atlantic cod (Gadus morhua). Comparative Biochemistry and Physiology. Part B, Biochemistry and Molecular Biology. 150:177-182. 2008
- Evaluation of the effects of repeated fecal collection by manual stripping on the plasma cortisol levels, TNF-alpha gene expression, and digestibility and availability of nutrients from hydrolyzed poultry and egg meal by rainbow trout, Oncorhynchus mykiss (Walbaum). Aquaculture. 275:250-259. 2008
- Evaluation of the ability of barley genotypes containing different amounts of beta-glucan to alter growth and disease resistance of rainbow trout Oncorhynchus mykiss. Animal Feed Science and Technology. 141:115-128. 2008
- Alternative marine sources of fish feed and farmed fish quality. Improving Farmed Fish Quality and Safety. 328-342. 2008
- Effect of starvation on transcriptomes of brain and liver in adult female zebrafish (Danio rerio). Physiological Genomics. 35:283-295. 2008
- Sexual dimorphism in hepatic gene expression and the response to dietary carbohydrate manipulation in the zebrafish (Danio rerio). Comparative Biochemistry and Physiology. Part D, Genomics and Proteomics. 3:141-154. 2008
- The aetiology of spinal deformity in Atlantic salmon, Salmo salar L.: influence of different commercial diets on the incidence and severity of the preclinical condition in salmon parr under two contrasting husbandry regimes. Journal of Fish Diseases. 30:759-767. 2007
- Evaluation of the ability of partially autolyzed yeast and Grobiotic-A to improve disease resistance in rainbow trout. North American Journal of Aquaculture. 69:400-406. 2007
- Performance of juvenile coho salmon Oncorhynchus kisutch fed diets containing meals from fish wastes, deboned fish wastes, or skin-and-bone by-product as the protein ingredient. Journal of The World Aquaculture Society. 32:21-29. 2007
- Prey selection and efficiency of naive and experienced juvenile sockeye salmon. Journal of Fish Biology. 70:1213-1223. 2007
- Fly prepupae as a feedstuff for rainbow trout, Oncorhynchus mykiss. Journal of The World Aquaculture Society. 38:59-67. 2007
- The effects of extrusion conditions on the nutritional value of soybean meal for rainbow trout (Oncorhynchus mykiss). Aquaculture. 265:244-252. 2007
- Early developmental expression of two insulins in zebrafish (Danio rerio). Physiological Genomics. 27:79-85. 2006
- Bovine growth hormone treatment increased IGF-I in circulation and induced the production of a specific immune response in rainbow trout (Oncorhynchus mykiss). Aquaculture. 246:437-445. 2005
- Bovine growth hormone treatment increased IGF-I in circulation and induced the production of a specific immune response in rainbow trout (Oncorhynchus mykiss). Aquaculture. 246:437-445. 2005
- Fisheries by-catch and by-product meals as protein sources for rainbow trout Oncorhynchus mykiss. Journal of The World Aquaculture Society. 36:393-400. 2005
- Effects of phase-feeding dietary phosphorus on survival, growth, and processing characteristics of rainbow trout Oncorhynchus mykiss. Aquaculture. 242:607-616. 2004
- Growth hormone differentially regulates muscle myostatin 1 and -2 and increases circulating cortisol in rainbow trout (Oncorhynchus mykiss). General and Comparative Endocrinology. 138:32-41. 2004
- Growth hormone differentially regulates muscle myostatin 1 and -2 and increases circulating cortisol in rainbow trout (Oncorhynchus mykiss). General and Comparative Endocrinology. 138:32-41. 2004
- Effects of microbial phytase supplementation and dosage on apparent digestibility coefficients of nutrients and dry matter in soybean product-based diets for rainbow trout Oncorhynchus mykiss. Journal of The World Aquaculture Society. 35:1-15. 2004
- The effects of recombinant bovine somatotropin (rbST) on tissue IGF-I, IGF-I receptor, and GH mRNA levels in rainbow trout, Oncorhynchus mykiss. General and Comparative Endocrinology. 135:324-333. 2004
- The effects of recombinant bovine somatotropin (rbST) on tissue IGF-I, IGF-I receptor, and GH mRNA levels in rainbow trout, Oncorhynchus mykiss. General and Comparative Endocrinology. 135:324-333. 2004
- Apparent digestibility coefficients of nutrients in brewer's and rendered animal by-products for rainbow trout (Oncorhynchus mykiss (Walbaum)). Aquaculture Research. 35:1-9. 2004
- Body composition, growth performance, and product quality of rainbow trout (Oncorhynchus mykiss) fed diets containing poultry fat, soybean/corn lecithin, or menhaden oil. Aquaculture. 238:309-328. 2004
- Nutritional value of fisheries by-catch and by-product meals in the diet of red drum (Sciaenops ocellatus). Aquaculture. 236:485-496. 2004
- Protein and lipid sources affect cholesterol concentrations of juvenile Pacific white shrimp, Litopenaeus vannamei (Boone). Journal of Animal Science. 82:1136-1145. 2004
- Effects of supplementing methionine hydroxy analogue in soybean meal and distiller's dried grain-based diets on the performance and nutrient retention of rainbow trout [Oncorhynchus mykiss (Walbaum)]. Aquaculture Research. 34:1303-1310. 2003
- Proximate composition, lipid oxidation, and sensory characteristics of fillets from rainbow trout Oncorhynchus mykiss fed diets containing 10% to 30% lipid. Journal of The World Aquaculture Society. 34:266-277. 2003
- Performance of post-juvenile rainbow trout Oncorhynchus mykiss fed diets manufactured by different processing techniques. Journal of The World Aquaculture Society. 34:162-174. 2003
- Fish performance, fillet characteristics, and health assessment index of rainbow trout (Oncorhynchus mykiss) fed diets containing adequate and high concentrations of lipid and vitamin E. Aquaculture. 219:715-738. 2003
- Effects of extrusion and expelling processing, and microbial phytase supplementation on apparent digestibility coefficients of nutrients in full-fat soybeans for rainbow trout (Oncorhynchus mykiss). Aquaculture. 218:501-514. 2003
- Effects of lysine supplementation in plant protein-based diets on the performance of rainbow trout (Oncorhynchus mykiss) and apparent digestibility coefficients of nutrients. Aquaculture. 215:255-265. 2003
- Comparison of growth performance, immunological response and genetic diversity of five strains of rainbow trout (Oncorhynchus mykiss). Aquaculture. 217:93-106. 2003
- Effects of extrusion processing of feed ingredients on apparent digestibility coefficients of nutrients for rainbow trout (Oncorhynchus mykiss). Aquaculture Nutrition. 9:77-83. 2003
- Mineral availability from barley low phytic acid grains in rainbow trout (Oncorhynchus mykiss) diets. Aquaculture Nutrition. 9:239-246. 2003
- Plant protein ingredients with lysine supplementation reduce dietary protein level in rainbow trout (Oncorhynchus mykiss) diets, and reduce ammonia nitrogen and soluble phosphorus excretion. Aquaculture. 218:553-565. 2003
- Effects of dietary phosphorus and lipid levels on utilization and excretion of phosphorus and nitrogen by rainbow trout (Oncorhynchus mykiss). 1. Laboratory-scale study. Aquaculture Nutrition. 8:279-290. 2002
- Status and opportunities for genomics research with rainbow trout. Comparative Biochemistry and Physiology. Part B, Biochemistry and Molecular Biology. 133:609-646. 2002
- The optimum dietary essential amino acid pattern for rainbow trout (Oncorhynchus mykiss), to maximize nitrogen retention and minimize nitrogen excretion. Fish Physiology and Biochemistry. 27:97-108. 2002
- The optimum dietary essential: nonessential amino acid ratio for rainbow trout (Oncorhynchus mykiss), which maximizes nitrogen retention and minimizes nitrogen excretion. Fish Physiology and Biochemistry. 27:109-115. 2002
- Apparent digestibility coefficients and nutritional value of cottonseed meal for rainbow trout (Oncorhynchus mykiss). Aquaculture. 212:361-372. 2002
- Apparent digestibility coefficients of nutrients and nutritional value of poultry by-product meals for rainbow trout Oncorhynchus mykiss measured in vivo using settlement. Journal of The World Aquaculture Society. 33:458-465. 2002
- Effect of microbial phytase on apparent nutrient digestibility of barley, canola meal, wheat and wheat middlings, measured in vivo using rainbow trout (Oncorhynchus mykiss). Aquaculture Nutrition. 8:271-277. 2002
- Effects of dietary phosphorus and lipid levels on utilization and excretion of phosphorus and nitrogen by rainbow trout (Oncorhynchus mykiss). 2. Production-scale study. Aquaculture Nutrition. 8:291-298. 2002
- Screamer disease in Atlantic salmon, Salmo salar L., in Chile. Journal of Fish Diseases. 24:543-549. 2001
- Digestibility, growth and excretion response of rainbow trout (Oncorhynchus mykiss Walbaum) to feeds of different ingredient particle sizes. Aquaculture Research. 32:885-893. 2001
- An in vitro method to determine phosphorus digestibility of rainbow trout Oncorhynchus mykiss (Walbaum) feed ingredients. Aquaculture Nutrition. 7:1-9. 2001
- Dietary microbial phytase supplementation and the utilization of phosphorus, trace minerals and protein by rainbow trout [Oncorhynchus mykiss (Walbaum)] fed soybean meal-based diets. Aquaculture Research. 32:583-592. 2001
- Myosin expression levels in trout muscle: a new method for monitoring specific growth rates for rainbow trout Oncorhynchus mykiss (Walbaum) on varied planes of nutrition. Aquaculture Research. 32:315-322. 2001
- Quantification of cholesterol oxidation products in commercial fish meals and their formation during storage. Aquaculture Research. 31:785-791. 2000
- A new approach to estimating the minimum dietary requirement of phosphorus for large rainbow trout based on nonfecal excretions of phosphorus and nitrogen. Journal of Nutrition. 130:865-872. 2000
- Primary responses of rainbow trout to dietary phosphorus concentrations. Aquaculture Nutrition. 6:235-245. 2000
- Spatial patterns in surface energy balance components derived from remotely sensed data. Professional Geographer. 52:272-288. 2000
- Utilization of fish and animal by by-product meals in low-pollution feeds for rainbow trout Oncorhynchus mykiss (Walbaum). Aquaculture Research. 31:585-593. 2000
- Availability of phosphorus and trace elements in low-phytate varieties of barley and corn for rainbow trout (Oncorhynchus mykiss). Aquaculture. 170:285-296. 1999
- Collaborative opportunities between fish nutrition and other disciplines in aquaculture: an overview. Aquaculture. 177:217-230. 1999
- Dietary arginine requirement of fingerling coho salmon (Oncorhynchus kisutch). Aquaculture. 163:137-150. 1998
- Apparent protein digestibility and mineral availabilities in various feed ingredients for salmonid feeds. Aquaculture. 159:177-202. 1998
conference paper
- Rainbow trout Oncorhynchus mykiss erythrocytes respond to thermal stress in vitro. Integrative and Comparative Biology. E139-E139. 2012
- Investigation of temporal changes in dietary carbohydrate utilization in rainbow trout 2011

Research

principal investigator on

co-principal investigator on

Indigenous Program for STEM Research and a Regional Native Network of Graduate Education: A National Research and Educational Model awarded by NSF Office of International and Integrative Activities (IIA) 2014 - 2019
Improving the Competitiveness of Rainbow Trout Production by the Integrated Development of Improved Grains, Feeds, and Trout awarded by USDA Agricultural Research Service 2009 - 2014
Performance Evaluation of Rainbow Trout Lines and Triploid Rainbow Trout awarded by USDA Agricultural Research Service 2008 - 2010
Development of Plant-Based Feeds for Trout awarded by USDA Agricultural Research Service 2004 - 2009
Evaulation of Selected Rainbow Trout Lines Fed Grain-Based Diets under Farm Scale Conditions awarded by USDA Agricultural Research Service 2003 - 2008
Apparent Digestibility and Nutritional Value of Component of Alaska Seafood Waste Stream to Trout awarded by USDA Agricultural Research Service 2002 - 2004
Farm and Ornamental Fish awarded by NSF Division of Industrial Innovation & Partnerships (IIP) 2000 - 2004

investigator on

Evaluation of genetically enhanced small grains as feed sources for aquaculture awarded by USDA Agricultural Research Service 1999 - 2004

Teaching

is major professor for

INFLUENCE OF DIETARY PURPLE CORN EXTRACT ON PRODUCTION, REDOX PARAMETERS AND MYOGENESIS IN RAINBOW TROUT Thesis

Contact

full name

Ronald W Hardy