Биологические науки список научных статей
-
Isolation of Newcastle Disease Virus from Wild Migratory Birds in Egypt
Surveillance studies for Newcastle disease virus (NDV) are critical to monitor the potential spreading of these viruses among wild birds as well as domestic poultry. This study was conducted to determine the incidence of NDV in wild birds in Egypt in 2016. Out of 159 collected samples from eight...
2020 / Mohammed Hasan Mohammed, Ahmed Kandeil, Maha Alkhazindar, Elsayed Tarek Abdelsalam, Mohamed Ahmed AliScopusAGRISRSCI -
Effects of Bacillus subtilis DSM 32315 on Immunity, Nutrient Transporters and Functional Diversity of Cecal Microbiome of Broiler Chickens in Necrotic Enteritis Challenge
This study was conducted to determine the effects of Bacillus subtilis DSM 32315 probiotic and antibiotic enramycin in broiler chickens with Clostridium perfringens induced-Necrotic enteritis on cecal microbial populations, functional diversity, nutrients transporters and cytokines mRNA expression. ...
2020 / Bello Musa Bodinga, Khawar Hayat, Xinshuai Liu, Jinghui Zhou, Xin Yang, Abdullahi Ismaila, Rab Nawaz Soomro, Zhouzheng Ren, Wenming Zhang, Xiaojun YangScopusAGRISRSCI -
Polymorphism of the Prolactin Gene in Egyptian Duck Breeds
In avian, the prolactin hormone triggers and regulates ovarian follicle development. This study aims to detect the Prolactin (PRL) gene polymorphisms (exons 1and5) in four Egyptian duck breeds, namely Campbell, Moulard, Muscovy, and Pekin using PCR-RFLP technique and sequence analysis. It also...
2020 / Nevien M. Sabry, Dalia M. Mabrouk, Mohamed A. Abdelhafez, Esteftah M. El-Komy, Karima F. MahrousScopusAGRISRSCI -
Molecular Breeding of Three Genes Associated with Egg Production Traits in Three Strains of Chickens
Breeding programs play an important role in increasing the performance of chickens. The poultry industry regards growth and reproduction as the two most economically valued characteristics for providing adequate animal proteins. Genetic variations are the basis of animal breeding. The present study ...
2020 / Waleed S. El-Tahawy, Manal M. Abdel-RahmanScopusAGRISRSCI -
Characterization and Analysis of the Major Structural Protein Genes of the Recently Isolated Avian Infectious Bronchitis Virus in Egypt
Infectious Bronchitis Virus (IBV) is a severe infectious disease affecting chickens and causing serious economic loss. Although several studies have been conducted to characterize HVRs-S1 (Hyper-Variable Regions of Spike 1 gene) in Egypt, few of which aimed to characterize the major structural...
2020 / Nahed Yehia, Dalia Said, Ali M. ZanatyScopusAGRISRSCI -
Clinicopathological Findings in Suspected Cases of Virus-induced Neoplastic Diseases in Commercial Layer Chickens in Nigeria
Avian neoplastic diseases, including Marek’s disease (MD), avian leukosis (AL), and reticuloendotheliosis (RE), are of economic importance in the chicken industry. However, it is difficult to differentiate MD from AL and RE by clinical signs and postmortem examination. Therefore, the present study...
2021 / Nuhu Abdulazeez Sani, Chukwuebuka Iniobong Ugochukwu, Samson Eneojo Abalaka, Ahmadu Saleh Muhammed Shuaib Muhammed, Sunday Blessing Oladele, Paul Ayuba Abdu, Celestine NjokuScopusAGRISRSCI -
The Effect of Substitution of Fish Meal by Maggot Meal (Hermetia Illucens L) on the Relative Length of Digestive Tract, Histomorphology of Small Intestines and the Percentage of Carcass Parts in Native Chickens
The development of the digestive tract organs is closely related to the increased body weight growth in chickens. The present study aimed to determine the effect of using maggot meal as an antibacterial and protein source of fish meal substitution in diets on the relative length of the digestive...
2021 / Fuji Astuty Auza, Sri Purwanti, Jasmal A. Syamsu, Asmuddin NatsirScopusAGRISRSCI -
Etiology of Respiratory Diseases of Poultry Farms in the North Coast of Egypt
The current study aimed to identify the respiratory problems in poultry farms located in the north coast of Egypt from October 2018 to November 2019. A total of 89 poultry flocks (79 broilers, 5 layers, 3 ducks, and 2 turkeys) were investigated for four major viral respiratory pathogens, namely...
2021 / Hanan Saad El-Samahy, Disouky Mohamed MouradScopusAGRISRSCI -
Isolation and Identification of Newcastle Disease Virus from Ducks Sold at Traditional Livestock Market Center in Indonesia
Newcastle disease (ND) is one of the important infectious diseases in the poultry industry. The traditional poultry markets have great potential in ND transmission. The ducks infected by the ND virus rarely show clinical symptoms, thus they can potentially spread the disease to other fowls. The...
2021 / Aisyah Nur Azizah, Chairul Anwar, Adi Prijo RahardjoScopusAGRISRSCI -
Morphobiometric Characteristics and Biodiversity of Indigenous Guinea Fowl (Numida meleagris) in Benin
The present study aimed to describe the morphobiometric characteristics of indigenous guinea fowl (Numida meleagris) populations in Benin. The current study was carried out on 1320 (529 males and 791 females) adult (at least 24 weeks old) indigenous guinea fowls from three climatic zones (Sudanian, ...
2021 / B. Michel Orounladji, S. Koffi Tozo, Christophe A.A.M. ChrysostomeScopusAGRISRSCI -
A Comprehensive Review on Adenoviruses Infections in Fowl: Epidemiology, Forms, Diagnosis, and Control
Fowl Adeno Viruses (FAdVs) are non-enveloped and double-stranded DNA viruses. They include eight species (FAdVs A-E) and 12 serotypes (FAdVs-1 to -8a and -8b to -11). Strains of FAdVs have been widely distributed in different countries all over the world. Most avian species are susceptible to FAdVs ...
2021 / Wafaa A. Abd El-GhanyScopusAGRISRSCI -
Genetic Evolution of Infectious Bursal Disease Virus Isolated from Chicken Poultry Flocks in Egypt
Infectious Bursal Disease Virus (IBDV) is highly infectious and causes severe economic losses in the Egyptian poultry industry. In the present study, 40 samples of bursa Fabricius tissue were collected from various poultry flocks residing in six governorates during 2020 in Egypt (8 from El-Daqhlia, ...
2021 / Sabry E.Omar, Walaa Abd El Moneim El Sayed, Ahmed Abdelhalim, Nahed YehiaScopusAGRISRSCI -
Biochemical Properties and Cell Culture Affinity of Fowl Adenovirus Serotype-4 Strains Isolated from the Oviducts of Layer Hens in East Japan
In the present study, the biochemical properties of two fowl adenovirus serotype-4 (FAdV4) sample strains were determined. These were previously isolated from the oviducts of laying chickens from two layer operations in East Japan, namely M and Y farms. Tests for stability and sensitivity,...
2021 / Fletcher Padilla Del Valle, Sherwin Ibasco Camba, Dennis Villaseñor Umali, Kazumi Sasai, Kazutoshi Shirota, Hiromitsu KatohScopusAGRISRSCI -
Erythroplastids of Duck Blood Produced by Cytokinesis, Lysis, and Amitosis
The aim is to describe anuclear erythrocytes (erythroplastids), pyrenocytes (small nucleated daughter erythrocytes), and amitosis (division without chromosomes or a spindle apparatus) of the commercial duck. Wright-Giemsa-stained blood samples came from ducks between 2 and 22 weeks of age. The...
2021 / Paul Francis CotterScopusAGRISRSCI -
Serological Detection of Antibodies Against Chlamydophila psittaci Infection in Pet Parrots of Guatemala City
Avian chlamydiosis (AC), caused by Chalmydophila psittaci (C. psittaci), is a relevant zoonotic disease transmitted to humans through psitassine or pet birds. Guatemala is a megadiverse country where parrots are commonly kept as pets. Considering such a situation and the fact that respiratory...
2021 / Estefany De León-Robles, Dennis Guerra-Centeno, Josselin Brizo-Murillo, Sergio Menéndez-Medina, José Guzmán Y Guzmán, Francisco Girón De León, Lesther Aguilar-PaizScopusAGRISRSCI -
Isolation and Molecular Characterization of Rabbit Haemorrhagic Disease Virus Strains Circulating in Rabbit Population Using Sequencing and Phylogenetic Analysis in Upper Egypt
Rabbit hemorrhagic disease (RHD) is a contagious viral disease that threatens rabbit farms locally and globally. The disease causative agent is the RHD virus (RHDV) of the family Caliciviridae. The present study aimed to identify and characterize RHDV strains currently circulating in Upper Egypt...
2021 / Samah El Sayed Ali Abodalal, Mohammed Shaker Abdel Hafez, Eman Abd El-Munem Shosha, Fatma Fadal Warda, Naglaa Mohammed HagagScopusAGRISRSCI -
Detection of Avian Influenza Anti-H5 Maternally-derived Antibodies and Its Impact on Antibody-mediated Responses in Chickens after In Vivo Administration of Inactivated H5N9 Vaccine
In the current study, two experiments were performed to ascertain the existence of avian influenza H5 maternally-derived antibodies (MDA) in chickens and evaluate their effects on the humoral immune responses of chickens vaccinated with a commercial oil-emulsion inactivated avian influenza H5N9...
2021 / Abubakar Ojone Woziri, Clement Adebajo Meseko, Faridah Ibrahim Nasir, Khadijat Abdulkarim, Mohammed Babashani, Folorunso Oludayo Fasina, Jibril Adamu, Paul Ayuba AbduScopusAGRISRSCI -
Micropathology of the Internal Organs of Japanese Quails Naturally Infected with Eimeria tenella
Сoccidiosis is a protozoan disease caused by Eimeria bateri (E. bateri), Eimeria tsunodai (E. tsunodai), Eimeria uzura (E. uzura), Eimeria tenella (E. tenella), Eimeria necatrix (E. necatrix), and Eimeria acervulina (E. acervulina). The goal of the current study was to explore the micropathology of ...
2021 / Oleksandr Rudik, Tetiana Kot, Svitlana Guralska, Yuriy Dovhiy, Olena ZhytovaScopusAGRISRSCI -
Multiple Outbreaks and Clinico-pathological Features of Highly Pathogenic Avian Influenza H5N1 and H5N8 in Poultry Farms in Jos Metropolis, Plateau State, Nigeria
Outbreaks of highly pathogenic avian influenza (HPAI) in Nigeria have been reoccurring since 2015 after the country was declared free of HPAI H5N1 in 2010. Beginning from January 26, 2021, the first suspected case of HPAI from a 4-week-old broiler/cockerel flock was reported to the Veterinary...
2021 / Negedu Onogu Ameji, Oludotun Olubusola Oladele, Alexander Ray Jambalang, Adanu Williams Adanu, Chinonyerem Nkemakolam Chinyere, Clement Adebajo Meseko, Lami Hannatu LombinScopusAGRISRSCI -
Genetic Polymorphism in the Promoter and 5´ UTR of HSP-70 Gene in Three Strains of Indigenous Tswana Chickens and Commercial Broilers
The current study was conducted to investigate sequence polymorphisms in the promoter, 5´untranslated regions (UTR), and partial exon regions of chicken HSP-70 gene in the normal (n = 24), naked neck (n = 22), and dwarf (n = 12) strains of indigenous Tswana chickens relative to the commercial...
2021 / James Buttie Machete, Patrick Monametsi Kgwatalala, Goitseone Malambane, Shalaulani James Nsoso, John Cassius MorekiScopusAGRISRSCI