China’s tilapia germplasm: Chance and challenge
China’s expansive tilapia culture industry is based on exotic species introduced continuously since 1956. Technical advances for improving the limited germplasm are expected to aid the industry.
Genetics key to understanding shrimp growth rates
Achieving higher growth rates in shrimp can reduce risks, cut costs and increase economic opportunities. The amount of additional growth that is achievable is related primarily to shrimp genetics.
Floating closed-containment aquaculture
Floating closed-containment systems incorporate low-pressure pumping, oxygen supplementation, solid-waste separation and efficient feed management.
Digestibility enhancer can offset cholesterol content in shrimp feed
Cholesterol is an essential nutrient for penaeid shrimp. Trials found that a digestibility enhancer based on natural emulsifiers was as effective as purified cholesterol in improving shrimp growth and feed conversion.
Intestine color check complements feed management in white shrimp
A technique based on checking the color of the shrimp intestine can complement the use of feed tables and trays, which are less effective at high temperatures, when no leftovers are found.
Streptococcus in tilapia
Streptococcus species account for over half of all bacterial diseases in tilapia. The authors studied the ability of biotype-specific vaccines.
Strategies for managing large integrated shrimp farms
Integrated shrimp farming is desirable due to its ability to provide food safety and traceability. Production planning is the most essential exercise in integrated systems.
Disease and shrimp farming
The slipping shrimp production in Southeast Asia due to disease has a number of causes. Emerging viral diseases take a toll, as do bacterial diseases caused by vibrios and other pathogens.
History of shrimp farming
The Shrimp Book, published in 2010, brings together experts from around the world to fill the critical need for a central reference source on the state of shrimp production practices.
Uncharted waters: Kenya takes dramatic leap in aquaculture
Kenya's economic stimulus program includes a bold move to help the country’s small-scale farmers literally dig themselves out of poverty with fish ponds.
Essential oils increase weight gain in channel catfish
Essential oils are linked to livestock performance gains. In research with channel catfish, inclusion resulted in greater feed consumption and weight gain.
Potassium diformate does not affect shrimp growth, survival
An eight-week growth trial evaluated the effects of potassium diformate on the growth performance and digestibility of Pacific white shrimp. Weight gain was not significantly affected by different levels of PDF in diets, and survival was high for all treatments.
Product improves nitrification in RAS
Healthy populations of both ammonia- and nitrite-oxidizing bacteria must be present in aquaculture systems to support the nitrification of potentially toxic ammonia to nitrite, with further oxidation to less problematic nitrate.
Oyster output affected by environmental features of farm site
In southern Brazil, management data for Pacific cupped oyster culture were assessed to characterize production in relation to environmental parameters.
Novel soy proteins, oils replace fishmeal to achieve FIFO under 1:1 in amberjack
In a nutrition trial, longfin amberjack received two diets composed of 40 percent soy protein concentrate and 10 percent fishmeal, and a control diet with 20 percent fishmeal.
American fisheries society calls for immediate-release fish sedatives
The absence of practical immediate-release sedatives for fish jeopardizes fish, fisheries, fish culture and research, posing risks to aquatic resources as well as those handling fish.