This study investigated the beneficial effects of dietary supplementation with brown macroalga, Ascophyllum nodosum meal (ANM) on growth, digestive enzymes, antioxidant defenses, immune functions, and resistance of white-leg shrimp, Penaeus vannamei to Vibrio harveyi infection. Animals were divided into six triplicated groups and fed with 0 (control), 5, 10, 20, 30, and 40 g ANM/kg feed for 10 weeks. Afterwards, animals were e...

The present study investigated the effect of dietary supplementation with ethanolic extracts of Ulva sp. and garlic ( Allium sativum ) on the growth performance, muscle composition, digestive enzyme activity and immune response of Pacific whiteleg shrimp ( Litopenaeus vannamei ). A60‐day feeding trial was conducted using seven experimental diets, including a control and diets supplemented with varying concentrations of Ulva sp...

Streptococcus agalactiae (Group B Streptococcus, GBS) poses a significant threat to Nile tilapia ( Oreochromis niloticus ) aquaculture, causing severe streptococcosis characterised by high mortality and economic losses. This study elucidates the pathogenesis of S. agalactiae through an integrated diagnostic approach and evaluates bacteriophage therapy as a sustainable alternative to antibiotic treatments. Clinical signs in inf...

The present research examined the use of a commercial acidifier blend (CAB) as a feed supplement on growth, digestive enzymes, antioxidant, immunological biomarkers, and defense of Nile tilapia ( Oreochromis niloticus ) against Aeromonas sobria disease. Fish (22.7 ± 0.76 g) were fed on 0.0 (the control), 1.0, 2.0, 4.0, or 8.0 g CAB/kg feed for 60 days. After that, fish were intraperitoneally injected with A. sobria , and their...

This study examined how European seabass, Dicentrarchus labrax , juveniles are affected by heat stress in several ways, including growth biometrics, stress indicators, oxidative stress biomarkers, and histopathological changes. Our research aims to gain a better understanding of the impact of thermal stress on these parameters. Hence, European seabass juveniles (30–32 g) were exposed to temperatures of 20 °C, 23 °C, 26 °C, 29...