Researchers determined that clam byproducts and hemp fibers meet the nutritional needs of farmed fish Florida pompano.
Better Water, Happier Fish
Research into the health of farm-raised rainbow trout revealed that one of the secrets to fish survival is in the water. ARS scientists at the Cool and Cold Water Aquaculture Research lab in Leetown, WV, found that fish raised in reused water faced significantly higher mortality rates than those grown in tanks supplied with fresh spring water.
Fish farmers often reuse water to conserve freshwater resources, but the magnitude of risk associated with short- or long-term reused water exposure and its impact on fish genetics and vaccine response was unclear. Researchers examined the health of fish that were vaccinated and those that had received mock vaccinations when raised in either reused or freshwater. Results showed that fish exposed to constant reused water without any acclimation had a mortality rate at least 46-fold over fish raised in freshwater. This research demonstrated the importance of freshwater in improving profitability and fish wellbeing.
Explore Other Discoveries
Leftovers Make Good Fish Food
New Ways to Sterilize Mosquitoes
ARS researchers collaborated with scientists from the University of Florida to develop a simpler method to sterilize mosquitoes.
Liver and Onions - Hold the Abscess
Changes in cattle rumen associated with liver abscesses remain well after the early development of rumen acidosis caused by high corn diets.
Protecting American Cattle From Ticks
ARS scientists collaborated to sequence and assemble the genomes of the ticks that cause cattle fever and anaplasmosis.
Determining Risk of Avian Influenza
ARS researchers studied the transmission dynamics of avian influenza virus in disease outbreaks of both commercial and backyard flocks.
Targeting Taste Buds, Targeting Grazing
Scientists are taking grazing to a new level by developing sheep that prefer or tolerate the bitter taste of plants.