Showing papers in "Aquaculture in 2013"

TL;DR: Geographic location was found to be the only factor influencing chemical ingredient application patterns in the majority of the studied farm groups, and these farm groups utilised the largest amount of chemicals relative to production, with feed additives and plant extracts, probiotics, and disinfectants, being the most used chemical classes.

TL;DR: The present study elucidates the suitability of biofloc as a dietary supplement at 4% level in shrimp feed for enhancing growth and digestive enzyme activities in tiger shrimp juvenile.

TL;DR: The results indicated that promoting biofloc through carbohydrate addition in zero-water exchange systems could enhance immune cellular response and antioxidant status of cultured shrimp under the conditions of the present study.

TL;DR: It is demonstrated that S. platensis can be introduced as an alternative natural carotenoid source instead of synthetic astaxanthin in rainbow trout diets and was found to be a suitable dietary level to ensure pigmentation as well as no negative effects on fish growth.

TL;DR: C cultivation of the sugar kelp Saccharina latissima in integration with salmon (Salmo salar) aquaculture in a Norwegian coastal area shows good growth in late autumn and in spring, with peak lengths of the sporophytes in June, while being poor in winter and summer.

TL;DR: It is demonstrated that dietary ginger doses might strengthen the non-specific immunity and reduce susceptibility to V. harveyi.

TL;DR: Humoral immune parameters including lysozyme, antiprotease, total protein, myeloperoxidase, bactericidal activity, and IgM titers were investigated and enhancement in all parameters compared to their respective controls was recorded.

TL;DR: The results in these studies indicate that B. subtilis has beneficial effects on growth performance, innate immunity and disease resistance of olive flounder and quality of the rearing water.

TL;DR: Results of this study clearly indicate that salts of organic acids possess inhibitory activity against pathogenic vibrio species in marine shrimp, with propionate, butyrate, and acetate salts exhibiting the highest inhibitory capacity.

TL;DR: Nucleotide supplementation did not significantly influence growth of fish fed diets with 30% to 50% soybean protein but could be helpful to improve the non-specific immune responses and the intestinal structure of turbot.

TL;DR: Feeding moderate levels of S. cerevisiae reduced growth performance and nutrient utilization, while C. utilis and K. marxianus were shown to be promising protein sources in diets for Atlantic salmon, capable of replacing 40% of the protein from high-quality fishmeal without adversely affecting growth performance, digestibility or nutrient retention.

TL;DR: The results show that productivity growth has slowed down over the years indicating that demand growth is the main driver of production growth in the Norwegian salmon aquaculture sector.

TL;DR: Results showed that ultrastructural lesions of organelles in hepatocytes occurred after intake of a high-fat diet, and on the whole, a low level of lipid transport out of the liver, alterations of lipid Transport and elevated lipid uptake contributed to fatty liver of blunt snout bream fed high-Fat diet.

TL;DR: High levels of substitution of PFM by APB might induce hepatic steatosis for Japanese seabass, however, the adverse effects cannot be ignored when the total PFM is replaced by SFM.

TL;DR: This study shows the possibility of integrated multi-trophic aquaculture in which A. japonicus is cultured in the water column below fish cages, because the survival and growth of the sea cucumbers were enhanced due to the ability to avoid predator interactions and adverse environmental conditions as well as nutritional feed supply from the fish cage.

TL;DR: The results showed that survival rate was not significantly affected by dietary arginine level, and final weight, specific growth rate, feed efficiency ratio, protein efficiency ratio (PER), and protein productive value (PPV) increased with increasing dietary arkinine level.

TL;DR: Evaluated the effects of low doses of dietary Bacillus subtilis C-3102 on the production, intestinal cytokine expression and adhesive bacteria of hybrid tilapia Oreochromis niloticus ♀ × Oreochrom is aureus ♂ and showed that different diets had no effects on fish growth performance.

TL;DR: In this paper, the authors evaluated the efficiency of wrasse as delousing agents and compared the relative efficiency of wild vs. cultured individuals in removing lepeophtheirus salmonis.

TL;DR: This study uses primary survey data from three provinces in China to examine the current use of aquafeeds in the carp and tilapia sectors and to assess how future demand for fishmeal will likely be affected by the country's shifting patterns of seafood consumption and production.

TL;DR: Differences in mortality among sites and growing heights are discussed in relation to OsHV-1 infection intensity and prevalence in oysters, and the environmental data recorded during the outbreak are discussed.

TL;DR: Examination of antioxidant enzymes and oxidative damage in tissues of Pacific whiteleg shrimp infected with the disease by intramuscular injection of the virus suggests that oxidative stress and tissue damage via inactivation of antioxidants enzymes in infected shrimps result in system failure and sudden death.

TL;DR: The development of phage therapy as a valid alternative for the control of vibriosis in salmonid aquaculture is supported, with the first report of the ability of V. anguillarum phages to protect fish against experimental infection with V.AnguillARum.

TL;DR: Results suggest that Zn from ZnMet was a better source than the other zinc forms, and there were no significant differences in weight gain, survival, total hemocyte counts, phagocytotic activity, PO, AKP and SOD between the ZnLys and ZnGly groups.

TL;DR: It is indicated that the harmful effects of ammonia on fish can be mitigated when fish are fed on 2% linseed oil and 400 mg/kg vitamin E.

TL;DR: Results suggest that the endogenous cellulase is far from sufficient to fully digest the ingested fiber, so cellulase should be developed as a kind of aquatic additive.

TL;DR: Results show that L. lactis I2 exerted beneficial effects as a probiotic and has potential as an alternative to antibiotics for the prevention of streptococcosis in aquaculture.

TL;DR: The results demonstrate the effectiveness of N, P and total suspended solid (TSS) removal from mariculture effluent by a CW operating with Salicornia persica as a biofilter for effluent water drained from a semi-open recirculating mariculture system was studied in southern Israel.

TL;DR: Among the tested alternative oil based-diets, tilapia previously fed the FO + CPO diet followed by the finishing diet resulted in the highest EPA, DHA and n-3/n-6 ratios, which should decrease feeding costs while improving the fillet quality oftilapia.

TL;DR: It is demonstrated that salt enriched diets can trigger short-term genome-wide methylation changes in hatchery reared trout, but these changes only lasted for a short period of time, suggesting that salt-induced alterations in DNA methylation patterns could play an important role in enabling fish acclimation to seawater conditions.

TL;DR: Results suggested that dietary intake containing chitin or chitosan could enhance the growth performance of P. monodon and improve its resistance to DO stress.