NWAC News

The NWAC News is a newsletter written by faculty and staff at the National Warmwater Aquaculture Center. Articles are intended to update members of the catfish industry on current topics, research findings, new programs, status of approved chemicals, and changes/additions to NWAC faculty and staff. Current Technical Editor is Dr. Jimmy Avery and current Design Editor is Kenner Patton. Click on the volumes below to see its contents and a link to the publication:

  • Economies of Scale Based on Catfish Production Strategy and Farm Size
  • Anaesthetizing Female Channel Catfish Brooders Using a Portable Electrosedation System
  • Economics of Bird Depredation: A Catfish Case Study
  • Summary of Catfish Fingerling Feed Studies
  • Viruses Impacting the Catfish Industry
  • Craig Tucker to Retire from USDA ARS
  • Les Torrans Retires from USDA ARS
  • 2018 MSU CVM Aquatic Research and Diagnostic Laboratory Report
  • Cormorant Roost Dispersal Program
  • SRAC Funds Vital Research Needs in the Region
  • The Big Fish Problem
  • Effects of a Graded Partial-harvest on Hybrid Catfish Size Variation
  • Development of an Oral ESC Vaccination Platform
  • Emergence of Edwardsiella piscicida in Channel and Hybrid Catfish
  • Oxygen Requirement of Separated Hybrid Catfish Eggs
  • Economic and Risk Considerations of Intensive Catfish Production Technologies
  • 2016 Aquatic Research and Diagnostic Laboratory Summary Report
  • Prophylactic Treatment of Catfish Fry Ponds with Copper Sulfate
  • Using Phytase in Catfish Feeds
  • Avoiding Residues in U.S. Farm-raised Catfish
  • Comorant Roost Dispersal Program
  • Replacing Soybean Meal and Corn in Catfish Diets
  • Craig Tucker Retires
  • New Leadership Roles at NWAC
  • Nitrogen Fertilizers for Fry Ponds
  • Effects of Fry Age-at-stocking
  • 2011 Aquatic Diagnostic Laboratory Summary Report
  • Hatching Success of Hybrid Catfish Eggs
  • Using Shad to Manage Off-flavors
  • Genetics Effects on Hybrid Offspring Performance
  • Improving Growth and FCR through Oxygen Management
  • SRAC Funds Three New Projects in 2012
  • Aquaflor® Receives Full Approval
  • TAA Training and Funds
  • Use of Corn Gluten Feed in Catfish Feeds
  • A Liquid Oxygen Calculator for Fasted Channel Catfish
  • Use of Non-Fat Dry Milk in Catfish Feeds
  • Tolerance of Channel Catfish Fry to Abrupt pH Shifts
  • Karmex® and Direx® Products Receive Section 24(c) Registration
  • 2007 Aquatic Diagnostic Laboratory Summary Report
  • U.S. Farm-raised Catfish Industry Suffering More Than Other U.S. Livestock Industries
  • Research to Improve Hybrid Catfish Reproduction
  • Freshwater Prawn Marketing Studies
  • Toxicity of Selected Mosquito Repellents to Channel Catfish Sac Fry
  • Feed Price Risk Management Considerations for Catfish Producers
  • Impacts of Stocking Size and Protein Content of Feed on Stocker Production
  • Use of Smallmouth Buffalo (Ictiobus bubalus) to Reduce the Incidence of Proliferative Gill Disease
  • USDA Catfish Genetics Research Unit Names New Leader
  • Economic Impact of Trematode Infections on Commercially Raised Channel Catfish
  • 2005 CVM Aquatic Diagnostic Laboratory Summary
  • Catfish Nutrition: Use of All-Plant Protein to Grow Food Fish
  • New Publications Produced by the Southern Regional Aquaculture Center
  • U.S. Farm-Raised Catfish Industry: 2005 Review and 2006 Outlook
  • Broodstock Trends in the Southeastern United States
  • Diuron-based Herbicides Obtain Emergency Exemption
  • Use of Elevated Levels of Copper Sulfate to Eliminate Snails
  • Cormorant Deterrent Systems for Moderate Size Farms
  • Welcome to New Personnel
  • Experimental Evaluation and Economic Analysis of a Fingerling-to-Stocker Phase in Commercial Farming of Channel Catfish
  • 2004 CVM Aquatic Diagnostic Laboratory Summary
  • Streptococcosis, a Previously Unknown Disease of Channel Catfish Broodstock
  • New Publications Produced by the Southern Regional Aquaculture Center
  • U.S. Farm-Raised Catfish Industry: 2004 Review and 2005 Outlook
  • Maintenance Feeding of Catfish
  • Calcium Improves Hatching Success
  • An Environmental Management System for Catfish Pond Effluents
  • Number of Trematode Infestations Increasing
  • 2003 CVM Aquatic Diagnostic Laboratory Summary
  • Swim-Tunnel Respirometer: Its Usefulness as a Tool to Study Catfish Health and Physiology
  • Research on Fish Diseases
  • Effect of Minimum DO Concentrations on Channel Catfish
  • Welcome to New Personnel at NWAC
  • Uses (and Misuses) of Sodium Bicarbonate in Aquaculture
  • Welcome to New Personnel at NWAC
  • Optimizing Fry Pond Fertilization
  • Research on Catfish Harvesting and Grading
  • Effect of Feeding Level and Dietary Protein on Catfish Production
  • Effect of Diet on Processing Yield of Channel Catfish
  • 2002 CVM Aquatic Diagnostic Laboratory Summary
  • Spring Viremia of Carp
  • Safer, Plastic Paddles for Hatching Channel Catfish Eggs
  • Comparison of Multiple-batch and "Modular" Catfish Production Systems
  • Early Detection of Edwardsiella ictaluri in NWAC 103 Channel Catfish Fingerlings
  • Florenicol Antibiotic Studies Conducted
  • New Publications Produced by the Southern Regional Aquaculture Center
  • Diuron Residues in Catfish Exposed in Consecutive Years
  • Comparison of Two-phase with Traditional Three-phase Production of Hybrid Striped Bass in Earthen Pond
  • Treating Channel Catfish Eggs with Hydrogen Peroxide Can Improve Hatching Success
  • Zooplankton Nutritional Value: Nursery Pond Fertilization Effects
  • Reducing Weigh-Backs with Liquid Oxygen
  • Linking Catfish Ponds to Conserve Groundwater and Reduce Effluent Release
  • Catfish Pond Effluents
  • Evaluation of Low-Protein Diets for Production of Fingerling Channel Catfish
  • Welcome to new Personnel at NWAC
  • Annual Fish Diagnostic Report for 2001
  • NWAC Plans Spring Workshops
  • Gas Supersaturation in Catfish Hatcheries
  • Freshwater Shrimp Farming – Why Now and What is the Attraction?
  • Dietary Protein Concentration and Stocking Density
  • Improving Catfish Spawning Success
  • Zooplankton Utilization by Channel Catfish Fry
  • Chemical Treatments for Reducing Snail Populations in Commercial Catfish Ponds
  • Drop-Fill Water Management Schemes for Catfish Ponds
  • Annual Fish Diagnostic Laboratory Report for 2000
  • Safety of Farm-Raised Fish
  • Factors Affecting Catfish Egg Hatching Success
  • Handling Catfish Egg Masses
  • Coordinator’s Comments
  • Drought Impacts East Mississippi Catfish Farms
  • Feeding Catfish
  • Chemical Control of Dero Worms to Prevent PGD
  • Publications and Videos Produced by SRAC
  • Practical Program to Compare Catfish Farm Operations
  • Development and Evaluation of USDA 103 Line Channel Catfish
  • USDA 103 Release Planned for February
  • Biological Control of a Parasitic Trematode in Catfish Ponds
  • NWAC Coordinator’s Comments
  • New Personnel at the NWAC
  • Farming of Red Swamp Crayfish
  • Feed Intake of Large and Small Fish in Mixed Size Populations
  • Fish Diagnostic Report for 1999
  • Management of Off-Flavor with Copper
  • Nutrition Research Supported by SRAC
  • Diuron Approved for Use in Mississippi
  • Identification of Channel Catfish Strains Using DNA Fingerprinting
  • Sediment Accumulation and Oxygen Dynamics in Catfish Production Ponds
  • Visceral Toxicosis of Catfish
  • Early Spring Losses of Foodfish and Broodfish
  • NWAC Coordinator’s Comments
  • New Personnel at the NWAC
  • Strategies for the Use of Diuron
  • Proliferative Gill Disease More Prevalent than Previously Thought
  • Effect of Protein Level on Dressed Yield and Production of Channel Catfish
  • New Research Project on Water Quality and Catfish Production
  • CFM to Sponsor Fall Seminal Program at NWAC
  • Farm/Processor Price Spreads in Catfish Markets
  • Cormorant Roost Dispersal Program Seeks Assistance
  • A Message from the Director, Ms. Agricultural and Forestry Experiment Station
  • NWAC Coordinator’s Comments
  • The Southern Regional Aquaculture Center
  • Research to Improve Catfish Spawning Success
  • Reproductive Performance and Evaluation of Three Spawning Can Types In Commercial Catfish Ponds
  • Optimum Concentration of Dietary Protein for Catfish
  • Preliminary Testing for Development of an Electric Seine for Increased Harvest Efficiency of Channel Catfish
  • Considerations for Determining Treatment Strategies to Control Bacterial Infections in Channel Catfish
  • The Status of Simazine
  • Automated Monitoring Systems and Water Quality