Recent developments in aquaculture – A review

Abstract

Towards the sustainable aquaculture production, more recent technologies have been developed in the past few years. The application of effectives microbes (EM) in controlling water quality, the application of biofloc technology, aquamimicry, Black Soldier fly (BSF) as supplemental protein feed, application of triploidy, polyploidy, vaccines, probiotic and prebiotic, Internet of Things (IoT) in monitoring the water quality in the farm operation, monosex culture and neo-female application also being applied in the aquaculture operation. The developments of these recent technology were towards achieving the sustainable aquaculture production, prevention of the disease outbreak, help in increasing the yield of crops harvested as well as towards the green environmental developments. This review paper emphasized on the most recent technologies developed in aquaculture in the past few years until these days. The developments of the new technology in aquaculture also in order to support the sustainable development goals (SDGs) proposed by the United Nation focused on SDG1 (no poverty) and SDG2 (zero hunger) from the increase of aquaculture production achieved through the recent developed technology. Ultimately, this review paper can generate new knowledge and information to the aquaculturist and aquafarmers on the new technologies and developments in aquaculture which could help benefit in the cultures operation and increase of production in the year future.

Behavioral transcriptomic effects of triploidy and probiotic therapy (Bifidobacterium, Lactobacillus, and Lactococcus mixture) on juvenile Chinook salmon (Oncorhynchus tshawytscha)

“…Probiotics can serve as food additives designed to create a healthy gut environment, 39 and can aid in modulating brain activity, 40 gene expression 41–44 and subsequent behavioral responses 45 . Probiotics have been widely used in aquaculture, 11 including the commercial probiotic mix used in our study, 46 and can possibly overcome some of the drawbacks of triploidy. Probiotics work through a variety of mechanisms involving altered gene expression: enhancing the host's intestinal metabolites (e.g., short‐chain fatty acids) to modulate gene transcription 47–49 ; coordinating multiple signaling pathways 47 ; and suppression of virulence‐related gene expression while upregulating genes associated with commensalism between host and gut microbiota 49 .…”

“…To ensure sustainable food production while meeting animal welfare needs, 6 advances in technologies, including producing polyploid individuals, have been employed 7 . In particular, triploidization is a widespread aquaculture technique used to induce sterility to increase the harvestable mass of individuals 8,9 and reduce the environmental impacts of escapees from farms 10,11 . During the triploidization process, organisms (e.g., teleost fish), undergo heat or pressure shock at the egg fertilization stage 12,13 which results in genome disruption and functionally sterile individuals with three sets of chromosomes 9,12 …”

Aqua drugs and chemicals used in commercial aquaculture in Mymensingh, Bangladesh

“…Consequently, this growth has led to the adoption of more intensive culture methods aimed at achieving higher production yields (Manan et al, 2023). Aquaculture faces significant production losses due to various factors, with disease being the most detrimental.…”

DIETARY PROBIOTICS AND ITS EFFECT ON GROWTH RATE, SURVIVAL RATE, AND FEED CONVERSION RATIO OF Clarias gariepinus

“…It can grow optimally at the pH range of 5.5-6.5, at a temperature of 30-37°C, and it reacts against Gram-negative bacteria. Other non-bacterial microorganisms such as bacteriophages, microalgae, and yeasts are also commonly identified as probiotics in aquaculture (Lambo et al, 2021;Manan et al, 2023). Dietary supplementation of probiotics can directly impact the speed of digestion in the fish digestive tract.…”