Implementing competent biosecurity strategies is a key factor for maintaining a disease-free aquaculture. Bacterial infections are an eminent threat to all live stages occurring in the marine hatchery. Live foods, including algae, rotifers, and artemia, are potential sources of microbial infections in hatcheries with ineffectual biosecurity plans. In the present study, epidemiological, bacteriological, molecular, and histopath...

Medicinal plants occupy a privileged place and are considered one of the most important natural phytogenic feed additives. Black cumin ( Nigella sativa , NS) and its derivatives have several beneficial therapeutic properties for aquaculture farms. This study investigated the effects of NS with or without feed restriction on growth performance, haemato-biochemical profile, immune and oxidant/antioxidant status, as well as the r...

Immunostimulant phytogenic feed additives are given great concern for improving fish health, growth, immune responses, and resistance to diseases. This research investigated the impact of dietary propolis (PRO), turmeric (TUR), and their combination on the growth, hematology, antioxidant-immune responses, and their regulating genes in Nile tilapia ( Oreochromis niloticus ) during Edwardsiella tarda challenge. For 8 weeks, a to...

The aim of this study is to identify the hidden etiologies of the black chromo-shifting transient phenomenon affecting Nile tilapia, Oreochromis niloticus , farmed in RAS-controlled ponds together with the assessment of the immunological reaction against the chronic irritating effects of the invasive agent. A total of 100 Nile Tilapia were collected from a private farm at Kafrelsheikh Province, located on the northern side of...