Aquaculture Research

Wiley Online Library : Aquaculture Research

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Aurantiochytrium sp. meal as DHA source in Nile tilapia diet, part I: Growth performance and body composition

Abstract This study evaluated the inclusion of Aurantiochytrium sp. (ALL‐G‐RICH™), a source of docosahexaenoic acid (22:6 n‐3, DHA), in the diet of Nile tilapia and its effect on growth performance indexes and body composition. Fish (initial mean weight 8.35 ± 0.80 g) were fed different dietary inclusion levels of ALL‐G‐RICH™: 0.00, 0.05, 0.10, 0.20,...

Incidence of systemic granulomatosis is modulated by the feeding sequence and type of enrichment in meagre (Argyrosomus regius) larvae

Abstract Systemic granulomatosis is the most frequent disease in juvenile and adult meagre, but studies regarding the first appearance of granulomas in larvae do not exist. In order to evaluate this, meagre larvae were fed four different feeding regimes as follows: RS and RO (rotifer enriched with Easy DHA Selco or Ori‐Green from 3 to 30 dph respectively),...

Influence of Nitzschia sp. on release of nitrogen and phosphorus from sediment in pond breeding sea cucumbers

Abstract Due to the tonic and nutritive virtues of sea cucumbers, increased commercial aquaculture has resulted in the expansion of breeding ponds, a primary form of sea cucumber production. Expansion of such production methods has led to increased settling of organic wastes onto the seabed, resulting in enriched sediments. Nitzschia sp. serves as...

Effects of stocking density on the growth performance, digestive enzyme activities, antioxidant resistance, and intestinal microflora of blunt snout bream (Megalobrama amblycephala) juveniles

Abstract In this study, effects of stocking density on the growth performance and physiological responses of blunt snout bream, Megalobrama amblycephala juveniles were evaluated. The fish (average body weight, 25.76 ± 2.25 g) were randomly stocked at densities of 30F (30 fish/m3), 60F, 90F and 120F in 12 cages (1 m × 1 m × 1 m) in a concrete pond,...

Effects of juniper berry oil on growth performance and blood parameters in common carp (Cyprinus carpio)

Abstract In this study the effects of commercial juniper berry oil (JBO) as a feed additive in diets for common carp (Cyprinus carpio) was investigated in terms of growth performance, feed utilization and blood parameters. The experimental diets were prepared to contain JBO at rate of 0 (JBO‐0), 5 (JBO‐5) and 10 (JBO‐10) ml/kg. Common carps (3.07 ± 0.15 g)...

Using genetic methods for analysis of fish meals and feeds employed in Greek mariculture

Abstract Large quantities of high protein fish meals are needed to sustain cultured species and thus the impact to marine ecosystem has been highly discussed. The aim of this study was to apply a PCR‐cloning methodology for a robust insight into the composition of commercial fish meals and feeds for farmed species of the Greek mariculture, assessing...

Improvement of reproductive indices, lysozyme activity, and disease resistance in live‐bearing ornamental fish, Poecilia latipinna using Artemia supplementation with treated yeast cell, Saccharomyces cerevisiae

Abstract In the present study, the effects of Artemia supplemented with 2‐β‐mercapto‐ethanol (β‐ME) treated yeast cell, Saccharomyces cerevisiae, on growth and reproductive performance, lysozyme activity, and disease resistance to Aeromonas hydrophila of freshwater ornamental species, Poecilia latipinna, were investigated. Within 60 days, molly fish...

Effects of dietary xylooligosaccharides on growth performance, immunity and Vibrio alginolyticus resistance of juvenile Litopenaeus vannamei

Abstract A 60‐day feeding trial was conducted to assess the effects of xylooligosaccharides on growth performance, immunity and Vibriosis alginolyticus resistance of juvenile Litopenaeus vannamei. Five diets were formulated to contain 0 (T0), 1 (T1), 2 (T2), 4 (T4) and 6 (T6) g/kg of xylooligosaccharides, triplicate groups of 40 shrimps with...

Effect of temperature on growth, digestion and immunity of green, white and purple sea cucumbers, Apostichopus japonicus (Selenka)

Abstract Three color morphs (white, green and purple strains) of Apostichopus japonicus (Selenka) were cultured in artificial seawater, for approximately 90 days, in three temperature ranges: 27–22°C (high), 22–17°C (mid) and 17–12°C (low). All strains grew in all temperature ranges. Temperature significantly affected growth rate, digestibility, digestive...

Effect of in situ sediment remediation combining oyster shells and bottom microporous aeration on nitrogen removal and microbiota

Abstract The present intensive aquaculture results in an excessive accumulation of nutrient and organic residues in sediment. Then, pollutants accumulated in sediment would strongly affect water quality and increase the occurrence of pathogenic microorganisms. Thus, remediation of sediment is needed for removing excess nutrient and preventing aquatic...

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