Publications by authors named "H K Abd El-Hamid"
The study describes the successful development of a TiO ceramic substrate with a protective nano-AlO coating using two different coating techniques: microwave combustion and polymeric methods. The coated ceramics demonstrate enhanced corrosion resistance compared to the uncoated substrate. The optimal TiO substrate was prepared by firing it at 1000 °C.
View Article and Find Full Text PDFThe continued circulation of infectious bursal disease virus (IBDV) in Egypt, despite the use of various vaccines, is a serious problem that requires continuous detection of IBDV. In the current study, real-time reverse transcriptase polymerase chain reaction testing of 100 diseased chicken flocks during 2017-2021 revealed the presence of very virulent IBDV (vvIBDV) in 67% of the flocks, non-vvIBDV in 11%, and a mixture of both vvIBDV and non-vvIBDV in 4%. Twenty-nine IBDV isolates were submitted for partial sequencing of the viral protein 2 hypervariable region (VP2-HVR), and 27 isolates were confirmed to be genogroup A3 (vvIBDV) with 96.
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- The study investigates the effectiveness of dietary lysozyme (LYZ) compared to avilamycin (AVI) as alternatives to antibiotics in broiler chickens, focusing on growth performance, gut health, and immunity.
- Both LYZ and AVI improved key growth metrics and upregulated important immune-related genes compared to a control group that received no supplementation.
- LYZ supplementation resulted in better intestinal health and immune response, including reduced harmful bacteria and improved vaccination titers, suggesting it could be a beneficial alternative to traditional antibiotics in poultry diets.
Infection with fowl adenoviruses (FAdVs) can result in a number of syndromes in the production of chicken, including inclusion body hepatitis (IBH), hepatitis-hydropericardium syndrome (HHS), and others, causing enormous economic losses around the globe. FAdVs are divided into 12 serotypes and five species (A-E; 1-8a and 8b-11). Most avian species are prone to infection due to the widespread distribution of FAdV strains.
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