A5108936029- Sperm and Testicular Function
- Bee Products Chemical Analysis
- Reproductive Physiology in Livestock
- Reproductive biology and impacts on aquatic species
- Effects of Environmental Stressors on Livestock
- Male Reproductive Health Studies
- Genetic and phenotypic traits in livestock
- Selenium in Biological Systems
- Reproductive Biology and Fertility
- Heavy metals in environment
- Heavy Metal Exposure and Toxicity
- Mercury impact and mitigation studies
- Aquaculture Nutrition and Growth
- Periodontal Regeneration and Treatments
Ministry of Agriculture and Land Reclamation
2023-2025
Agricultural Research Center
2023-2024
Objectives: This study aimed to evaluate the effectiveness of gonadotropin-releasing hormone-loaded chitosan-TPP nanoparticles (GnRH-CNPs) and prostaglandin F2α-loaded (PGF2α-CNPs) within Ovsynch protocol for enhancing reproductive performance in heat-stressed dairy cows. Methods: Thirty-six cyclic purebred Friesian cows not detected standing heat more than 90 days postpartum were randomly allocated three treatment groups. The control group (OVS, n = 12) followed standard with conventional...
Buffalo sperm is sensitive to cryoinjuries, thus improving cryoresistance a critical approach for wide spreading the assisted reproductive technologies in buffalo. The intention of this work was assess effect propolis-loaded nanoliposomes (PRNL) supplementation semen extender on quality, antioxidant status and some apoptotic genes cryopreserved buffalo semen. PRNL were prepared using cholesterol (Chol) as well soybean lecithin their physicochemical properties characterized. Egyptian bulls...
This study aimed to investigate the impact of ambient lead (Pb) exposure on progesterone (P
Spermatozoa can experience negative changes when subjected to freezing and thawing, including lowered motility, viability acrosome response. Herein, the effects of different concentrations soybean lecithin nanoparticles on cryopreserved Holstein bull semen were examined. Semen was collected, utilized for sperm kinetic parameter analysis following dilution, equilibration thawing with 0.5% (E1), control extender, 0.75% (E2), (E3), 0.25% (E4) 0.125% (E5) nanoparticles. Results revealed that...
Heat stress during hot season enhances oxidative stress, alters hormonal secretion and adversely affects reproductive performance.So, it's necessary to supply antioxidants such as vitamin E selenium.This work aimed investigate the impact of selenium administration on performance before ovsynch synchronization artificial insemination (AI) in Friesian cows season.Twenty ovsynchsynchronized were divided according time into four groups (each 5 cows), G 1 control group without any administration,...
This study investigates the consequence of adding platelet-rich plasma (PRP) on post-thawed quality and in vitro fertility buffalo bull semen. Fifty-four ejaculates from nine bulls were collected, every ejaculate was then dispensed into 5 equal parts, diluted with Optixcell extender supplemented five [0, 5, 10, 15, 20] proportions PRP followed by freezing using usual protocol. Post-thaw sperm motility, viability, integrity (%) membrane, acrosome, DNA, mitochondrial membrane potential...
Heat stress during hot season enhances oxidative stress, alters hormonal secretion and adversely affects reproductive performance.So, it's necessary to supply antioxidants such as vitamin E selenium.This work aimed investigate the impact of selenium administration on performance before ovsynch synchronization artificial insemination (AI) in Friesian cows season.Twenty ovsynchsynchronized were divided according time into four groups (each 5 cows), G 1 control group without any administration,...
This study investigates the effect of adding various concentrations quercetin (QUE) on post-thaw semen quality Zaraibi bucks. Semen was collected from seven bucks, examined, and dispensed into five portions, where each portion diluted with Tris egg yolk extender supplemented 0 μM as a control, 10 μM, 15 25 40 QUE per mL extender. The portions were loaded mini-straws, sealed, frozen in liquid nitrogen. Frozen-thawed straws evaluated for sperm progressive motility, kinematic parameters,...