Биологические науки список научных статей
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Experimental Infection of Local Domestic and Feral (Columba livia domestica) Pigeons with Local Isolate of H9N2 Influenza Virus: Virological and Histopathological Study
A local isolate of low pathogenic Avian Influenza Virus (AIV) H9N2 subtype was used in experimental infection of 50 domestic and 50 feral pigeons (Columba livia domestica) to determine the susceptibility of these birds to H9N2 infections and to study its histopathological effects on vaccinated and...
2020 / Ahmed Raad Rasheed, Karim Sadun Al-Ajeeli, Amer Khazaal Al-AzawyScopusAGRISRSCI -
Serological and Molecular Detection of Chicken Anemia Virus in Broiler and Layer Chickens in Iraq
Chicken Anemia Virus (CAV) infects many bird species worldwide and causes immunosuppression. This condition can facilitate the infection of affected birds with other pathogens including bacteria, viruses, and fungi. No data were available on detection or isolation of CAV from birds in Iraq,...
2020 / Karim Sadun Al-Ajeeli, Amer Khazaal Al-Azawy, Haneen GhazuanScopusAGRISRSCI -
Molecular Characterization and Phylogenetic Analysis of Full-length S1 Gene of GI-16 and GI-23 Infectious Bronchitis Virus in Qena, Egypt
Infectious Bronchitis Virus (IBV) is a highly evolving virus that affects respiratory, urinary and reproductive systems. This virus is recognized as an important pathogen due to the continuous genesis of new variants that threaten the poultry industry worldwide. The aim of this study was to...
2020 / Mahmoud Sabra, Wesal Abdellatif, Ahmed Ibrahim Ahmed, Nabila OsmanScopusAGRISRSCI -
A Novel Mutation in the Promoter Region of Avian Uncoupling Protein3 Associated with Feed Efficiency and Body Composition Traits in Broiler Chicken
The Avian Uncoupling Protein (avUCP) belongs to the mitochondrial anion transporter family. It has a pivotal homeostatic mechanism that associated with energy regulation and lipid metabolism. The avUCP considered as a candidate gene for chicken growth-related traits according to its predominant...
2020 / Mojtaba Darzi Niarami, Ali Akbar Masoudi, Rasoul Vaez Torshizi, Peymaneh DavoodiScopusAGRISRSCI -
Detection of Campylobacter jejuni among Commercial Broiler Chickens in East-Coast Malaysia
Human campylobacteriosis is associated with contaminated foods and drinks or direct contact with the source of organisms. Broilers are the main reservoir of Campylobacter as well as the primary source of meat in many countries. The microorganism load in broilers is converted into the rate of...
2020 / Che Mohd Noor Nur-Aziera-Aina, Nur-Syafiqah Mohd Nasir, Abdul-Rahman ZaidahScopusAGRISRSCI -
Gallibacterium anatis: Moleculer Detection of Tetracycline Resistance and Virulence Gene
Gallibacterium anatis causes infections in the reproductive tract of egg-laying hens and it is associated with increased mortality and decreased egg production. For this study we used singeleplex and multiplex PCR with specific primers to assess the presence of tetracycline resistance (Tcr) (tet A, ...
2020 / Ozlem Sahan Yapicier, Sibel YamanScopusAGRISRSCI -
Assessment of Genetic Variability and Population Structure of Five Rabbit Breeds by Microsatellites Markers Associated with Genes
The present study was intended to estimate the specific genetic variants by using nine genetic markers among five rabbit breeds (New Zealand White, California, Chinchilla, Flander, and Babion) in Egypt. A total of 128 animals were used (19-35 rabbits per breed). A total of 97 alleles were detected...
2020 / Tarik S.K.M. RabieScopusAGRISRSCI -
Antibacterial Sensitivity and Detection of Virulence Associated Gene of Pasteurella multocida Isolated from Rabbits
The aim of the present work was to determine antibacterial sensitivity and resistance patterns of Pasteurella multocida isolated from rabbits in different farms of Assiut Governorate. Also, this study aimed to detect virulence-associated gene (toxA) of Pasteurella multocida. A total of 40 freshly...
2020 / Fatma M. Mohamed, Marium F. Mansy, Abd-El-Twab M. Abd-Al-Jwad, Ahmed K.HassanScopusAGRISRSCI -
Comparative Clinicopathological Study of Salmonellosis in Integrated Fish-Duck Farming
Poultry litter is used in fish farms as fertilizer thus integrated fish-duck farming is common in some areas of Egypt. Salmonella bacteria may be present in poultry litter and contaminate fish ponds and infect duck farms. To investigate incidence and prevalence of Salmonella infection in integrated ...
2020 / Anwaar M. El-Nabarawy, Mohamed A. Shakal, Abdel-Haleem M. Hegazy, Mohamed M. BatikhScopusAGRISRSCI -
Molecular Identification of a Velogenic Newcastle Disease Virus Strain Isolated from Egypt
Newcastle Disease Virus (NDV) is still a major concern for the Egyptian poultry industry in spite of the mass vaccination programs implemented from a long years ago. The current study aimed to carry out the molecular identification of surface glycoprotein genes of NDV field strain isolated from the ...
2020 / Shakal M., Mira Maher, Abdulrahman S. Metwally, Mohammed A. Abdelsabour, Yahia M. Madbbouly, Gehan SafwatScopusAGRISRSCI -
Association of Antiseptic Resistance Gene (qacEΔ1) with Class 1 Integrons in Salmonella Isolated from Broiler Chickens
Salmonella enterica is considered a zoonotic pathogen that acquires antibiotic resistance in livestock. In the current study, a total of 18 Salmonella enterica isolates recovered from cloacal swabs of diseased and freshly dead broilers were serotyped and assessed for susceptibility to clinically...
2020 / Naglaa M. Ali, Fatma M. MohamedScopusAGRISRSCI -
Evaluation of the Effect of Mycotoxins in Naturally Contaminated Feed on the Efficacy of Preventive Vaccine against Coccidiosis in Broiler Chickens
This research was designed to evaluate the effect of naturally contaminated feed with mycotoxins on the efficacy of vaccination against coccidiosis in broilers. Two hundred day-old Hubbard broiler chicks were divided into four groups (50 chicks/group). Group 1 and 3 were kept on naturally...
2020 / Anwaar M. Elnabarawy, Marwa M. Khalifa, Khaled S.Shaban, Walied S. KotbScopusAGRISRSCI -
A Field Study on Biochemical Changes Associated with Salmonella Infection in Ducklings
The present study aimed to investigate the incidence of Salmonella infection in diarrheic ducklings in Kafr El Sheikh Governorate, Egypt. A total of 100 samples were collected from ducklings suffered from diarrhea and mortality. Also, 50 litter samples were collected from duck farms. All specimens...
2020 / Mayada A.M. Abou Zeid, Soad A. Nasef, Gehan, I.E. Ali, Hegazy A.M.ScopusAGRISRSCI -
In Vitro Evaluation of Antibacterial Properties of Zinc Oxide Nanoparticles alone and in Combination with Antibiotics against Avian Pathogenic E. coli
Antibiotic-resistant bacteria have become one of the major issues and concerns worldwide. For the past years, scientists have investigated the use of treatments in the nano-scale. Nanomaterials, such as metal oxide nanoparticles, have shown promising results due to their antibacterial properties....
2020 / Mohamed Shakal, Emad Salah, Maha, A. Saudi, Eman, A. Morsy, Shaza Ahmed, Ayman AminScopusAGRISRSCI -
Immunological Study on Salmonellae Isolated from Different Sources
Salmonella infection is a critical veterinary and medical problem worldwide and is a major issue in the food industry. Non-typhoidal Salmonella is known as an important pathogen causing gastroenteritis. The Outer Membrane Proteins (OMPs) of Gram negative bacteria are significant for virulence, host ...
2020 / Enas A. Shedeed, Mahmoud D. El-Hariri, Soad A. Nasef, J. El JakeeScopusAGRISRSCI -
Detection of Virulence Genes in Bacillus cereus isolated from Meat Products Using PCR
Bacillus cereus is an opportunistic pathogen that can cause food poisoning in humans as a result of consuming foods containing toxins or bacteria. In this study, the incidence of B. cereus and its virulence genes in meat products was investigated. Isolation of B. cereus was performed using...
2020 / Ashraf A. Abd El Tawab, Fatma I. El-Hofy, Nahla, A. Abou El Roos, Doaa A.El-MorsyScopusAGRISRSCI -
Development of a Duplex Real-time PCR for Differentiation of Salmonella Typhimurium and Monophasic Serovars
Salmonella Typhimurium is the most Salmonella serovar causing acute gastroenteritis and diarrhea. Serovar 1, 4, [5], 12: i:is considered a monophasic variant of S. Typhimurium that threaten public health. Fifty-eight serologically confirmed Salmonella strains were investigated by PCR using 16S rRNA ...
2020 / Amany Abd El -Lattief, Sherif Marouf, Amany El-Bialy, Jakeen El-JakeeScopusAGRISRSCI -
Genomic Analysis Reveals Strong Signatures of Selection in Guangxi Three-Yellow Chicken in China
Much like other indigenous domesticated animals, Guangxi Three-yellow chickens (GX-TYC) in China have experienced strong selective pressure, and show specific phenotypic changes in physiology, morphology and behavior. To identify genomic footprints or selection signatures left by artificial...
2020 / Yuying Liao, Junli Sun, Yingfei Huang, Fengying Wei, Guodong Mo, Lucas Zellmer, Dezhong Joshua LiaoScopusAGRISRSCI -
Isolation, Molecular, and Pathological Characterization of Infectious Bursal Disease Virus among Broiler Chickens in Morocco
Infectious bursal disease (IBD) is a contagious viral disease of young chickens that causes immunosuppression, mortality, and growth retardation. This pathology has severely affected the Moroccan poultry industry. The objective of the present study was the isolation, molecular characterization, and ...
2020 / Maryame Cheggag, Khalil Zro, Mariem Terta, Siham Fellahi, Mohamed Mouahid, Mohammed El Houadfi, Ghizlane Sebbar, Faouzi KichouScopusAGRISRSCI -
Circulating Antibodies against Avian Influenza and Newcastle Disease in Semi-Captive Peacocks in Southwestern Guatemala
Avian Influenza and Newcastle disease are the two most important diseases of poultry and are globally considered as threats to public health and economy. There is little information published about these diseases in peacocks and other common backyard poultry in Guatemala. Therefore, an exploratory...
2020 / Melissa Castillo-Grijalva, Dennis Guerra-Centeno, Yousef Talgi, Carlos Valdez-Sandoval, Manuel Lepe-López, Beatriz SantizoScopusAGRISRSCI