Mahmoud Hasanain

National Research Center, Egypt | NRC · Department of Animal Reproduction and Artificial Insemination

The study aimed to declare the influence of the epididymal region on spermatozoa characteristics and oviduct reservoir potential in dromedary camel. Testicles with epididymis of mature dromedary camels aged 5-10 years old (n= 27) were collected during the rutting season (December – April). Spermatozoa collected from the three main anatomical epidid...

Background Vancomycin-resistant enterococci (VRE) are among the most common causative pathogens for nosocomial infections worldwide. Moreover, strains of VRE have been isolated from several domestic livestock in Egypt. Methods This study examined if healthy dogs are a potential source of VRE infection by isolating and characterizing Enterococcus f...

Background: Extracellular vesicles (EVs) are a promising biomarker and play a vital role in cell-cell communication. This study aimed (I) to identify and characterize EVs from low volume uterine lavage (LVL) and serum in mares with endometritis, compared to healthy controls and (II) to measure serum levels of interleukin 6 (IL-6), and prostaglandin...

Background Extracellular vesicles (EVs) are a promising biomarker and play a vital role in cell–cell communication. This study aimed (I) to identify and characterize EVs from low volume uterine lavage (LVL) and serum in mares with endometritis, compared to healthy controls and (II) to measure serum levels of interleukin 6 (IL-6), and prostaglandins...

This work aimed to investigate the genetic polymorphism of Aquaporin 7 (AQP7) gene and its association with the in-vivo fertility of Egyptian buffalo bulls. A total of 188 fresh semen ejaculates were collected from 47 buffalo bulls and subjected to semen evaluation. The bulls were grouped according to in-vivo fertility relying on sire conception ra...

T HIS study investigated the genetic polymorphism of osteopontin (OPN) gene in Egyptian buffalo bulls in a trial for association with the quality of fresh semen. A total of 228 fresh semen ejaculates were collected from 57 buffalo bulls. Checking the fertility potential, the ejaculates were evaluated for volume, individual motility, live sperm, spe...

Fresh semen from fifty bulls was evaluated for ejaculate volume, individual motility, concentration, lives sperm and abnormalities as well as acrosome integrity. Bulls were classified according to semen motility into two groups; good and poor. DNA was extracted from semen of both groups, then the PCR followed by single-strand conformation polymorph...