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Policies to limit antibiotic use spurred interest in alternative strategies, such as dietary supplementation with immunostimulants and other compounds. 

Probiotics used as bottom soil and water quality enhancers are primarily cultures of living bacteria, enzyme preparations, or the two combined. 

Solar Aquafarms developed an innovative, low-cost method for growing fish and shrimp in closed-cycle, controlled environments in California. 

In this study, plant proteins – soybean meal, fermented soybean meal and sesame meal – were evaluated as fishmeal replacements for Pacific white shrimp. 

Study assesses how environmental conditions and bacterial community dynamics impact white feces disease outbreaks in commercial shrimp ponds. 

An evaluation of dietary oils showed the occurrence of a core microbiota in early life stage of Atlantic salmon, independent of oil type in the feed. 

A stocking density ratio of 3:1 with a C/N ratio of 15 was optimal for indoor marine aquaponics systems for L. vannamei and the three edible halophytes evaluated. 

Adding sodium humate enhances growth, digestive enzymes and immune enzyme activity of L. vannamei by improving the water microbial community. 

Researchers look at transforming byproducts into aquafeed supplements rich in healthy microorganisms and with high protein content.  

Greater knowledge of phosphorus processes is essential to reduce phosphorus pollution from open-flow fish farms and improve environmental performance. 

Strategies to control Vibrio bacteria at aquaculture farms must revolve around limiting inputs, including those from postlarvae suppliers, those that come in with the water, those that remain in the soil between crops and those in the feed and accumulated organic matter. 

By raising shrimp in a closed building, producers can increase biosecurity, produce shrimp more consistently, grow shrimp year-round and locate production centers near markets. Chefs and consumers were very accepting of whole fresh shrimp, offered at a farmers market, that was farmed indoors in Kentucky. 

Aquaculture ponds accumulate organic matter from organic fertilizer, remains of microorganisms produced within the pond, feces of the culture animals and uneaten feed. Claude E. Boyd, Ph.D., details the leading organic matter management practices, and says that the accumulation of organic matter is often not as great as believed. 

The development of this reactor for the indoor cultivation of non-suspended microalgae like important diatoms such as Amphora spp., and the cellular dry matter values produced in this study will help bio-filming science support the development and improvement of in situ feed supplementation for fish and shrimp ponds, particularly in desert environments. 

A study was conducted to measure the effects of commercial probiotics on Pacific white shrimp in a standardized AHPND challenge model under controlled laboratory conditions. Results show that the probiotics treatments by themselves have beneficial effects, such as higher survival and histological signs of hepatopancreas regeneration. 

A recent study at the Federal University of Rio Grande in Brazil showed that it is possible to reduce the C:N ratio in biofloc cultures, to decrease the water volume used and the total suspended solids produced, with resulting savings. 

Indian shrimp hatcheries have experienced larval mortality in the zoea-2 stage, with molt deterioration and resulting in heavy mortality. Authors considered biotic and abiotic factors. Part 2 describes results of their study. 

Vibrio infections are an increasingly common problem in intensive shrimp culture. As evidenced by study results, weekly Vibrio monitoring can be a useful tool for predicting bacterial disease outbreaks.