Tag David D. Kuhn

• Feed Sustainability

  January 7, 2019

  Production of omega-3 enriched tilapia through dietary algae meal or fish oil

  This study evaluated the effect of diets supplemented with fish oil and algae meal for LC-PUFA enrichment on juvenile Nile tilapia. The experimental diets have promise as a feasible option for enriching omega-3 content in tilapia fillets. 

• Marketplace

  September 23, 2015

  Human enteric viruses in shellfish, part 3

  Epidemiological studies have estimated that noroviruses are responsible for 60 percent to 80 percent of all foodborne outbreaks of gastroenteritis worldwide. Consumption of shellfish is one of three main transmission routes of norovirus infection. 

• Consumer Education

  July 2, 2015

  Human enteric viruses in shellfish, part 2

  Since bivalve shellfish filter large volumes of water to feed, they can accumulate and concentrate bacteria and viruses from various pollution sources. Among enteric viruses, noroviruses are the leading cause of gastroenteritis in humans who consume affected shellfish. Current wastewater 

• Consumer Education

  May 2, 2015

  Human enteric viruses in shellfish, part 1

  Commercially harvested shellfish have been reported to cause gastro-enteritis when humans consume virus-contaminated products. Rotaviruses are one of the main types of viruses able to survive and persist in the aquatic environment. 

• Marketplace

  March 2, 2015

  Shrimp out of water: Shipping live shrimp in waterless conditions

  Live markets represent a promising niche in regions where locally raised seafood cannot compete with inexpensive imports. Study results suggested regional shrimp producers could effectively reach premium markets by shipping using waterless methods. 

• Animal Health & Welfare

  January 2, 2015

  Antibiotic-resistant bacteria, part 2

  The development of antimicrobial resistance genes in human pathogens as a consequence of exposure to antibiotics in aquaculture is widely documented. Reports implicate foodborne antibacterial-resistant pathogenic bacteria in human disease. 

• Animal Health & Welfare

  December 2, 2014

  Antibiotic-resistant bacteria, part 1

  No antimicrobial agent has been developed specifically for aquaculture applications. However, some antibiotic products used to treat humans or land-based animals have been approved for use at aquaculture facilities. 

• Animal Health & Welfare

  July 2, 2014

  Cathepsin enzymes, part 2

  Cathepsin D alone and in combination with other cathepsins presents the greatest proteolytic activity on some fish muscles. 

• Animal Health & Welfare

  July 2, 2014

  Cathepsin enzymes, part 1

  Cathepsins B, D and L are considered critical in fish muscle post-mortem modifications or gel softening during the setting of surimi. 

• Animal Health & Welfare

  January 2, 2014

  Lipid oxidation results from heme catalysis

  Iron compounds in fish contribute significantly to lipid oxidation in addition to oxidation mediated by enzymatic activity. The main iron-containing compounds are myoglobin and hemoglobin.