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| Issue Date | Title | Author(s) |
| 1-Jan-2022 | Assessing Differences in the Quality Properties and Ultrastructure of Eggshell as Affected by Chicken Strain and Flock Age During Incubation Period | Gamal Rayan ; Galal, A.; Fathi, M. M.; Alawaid, S.; Shehata, W.; El Attar, Ahmed |
| 1-Oct-2024 | Association of Ovocalyxin-32 Gene Variants with Egg Quality Traits in Indigenous Chicken Breeds | Yacoub, Haitham A.; Fathi, Moataz M.; Al-Homidan, Ibrahim H.; Badawy, Moataz I.; Abdelfattah, Mohamed H.; Elzarei, Mohamed F.; Abou-Emera, Osama K.; Gamal Rayan |
| 1-Nov-2022 | Carcass Traits of Geese (Anser anser) as Affected by Age, Gender and Their Interactions | Makram, A. ; Abdelmoniem Mohamed Abdelmoniem Hanafy ; EL-Dien, A. Zein; EL-Attar, A. H.; Gamal Rayan |
| 1-Jan-2022 | Comparative Study of Egg and Meat Quality of Guinea Fowl under Different tropical regions: A Review | Gamal Rayan ; Mansour, A.; Fathi, M. M. |
| Sep-2015 | Comparative Study of Egg Quality, Hatching Performance and Carcass Traits for Rhode Island Red, Baheeg and Matrouh Chicken Strains. | Gamal Rayan ; A.I. El-Faham ; S.A. Ibrahim ; N.A. Hattaba |
| Mar-2015 | Effect of age, housing type and their interaction on broiler breeders performance during growth and egg production periods. | Gamal Rayan ; S.A. El-Safty ; M.S. Hassanien |
| 1-May-2024 | Effect of Beak Color on Growth Performance and Carcass Characteristics of Pekin Ducks | Alsaffar, M. A.; Makram, A. ; Gamal Rayan ; Zein EL-Dien, A.; Shehata, W.; ELAttar, A. H. |
| 1-Nov-2022 | Effect of genotype and egg weight on hatchability properties and embryonic mortality pattern of native chicken populations | Fathi, Moataz; Abou-Emera, Osama; Al-Homidan, Ibrahim; Galal, Ahmed; Gamal Rayan |
| 1-Jul-2023 | Effect of genotype of growing rabbits on productive performance with special reference to residual feed intake at hot temperature | Fathi, Moataz; Abdelsalam, Magdy; Al-Homidan, Ibrahim; Abou-Emera, Osama; Gamal Rayan |
| 2013 | Effect of Layer Breeder Strain and Age on Tibia Bone Characteristics of Chicks. | A. Galal ; M.M. Fathi ; A.H. El-Attar ; Rayan, Gamal |
| Oct-2016 | Effect of long-term selection for egg production on eggshell quality of Japanese quail (Coturnix japonica). | M.M. Fathi ; A.E. El-Dlebshany ; M. Bahie El-Deen ; L. M. Radwan ; Gamal Rayan |
| 1-Jan-2020 | Eggshell and bone quality in two different genetic groups of aged layer breeders | Gamal Rayan ; El Attar, Ahmed ; Fathi, M. M. |
| Sep-2016 | Eggshell and Bone Quality in Two Different Genetic Groups of Aged Layer. | EL-Attar, A.H. ; Gamal Rayan |
| Jun-2017 | Field Study for Seasonal Effecting Productive Performance of Broiler Breeder Chickens. | A.I. El-Faham ; S.A. Ibrahim ; S.A. El-Safty ; M.S. Hassanien ; Nematallah G.M. Ali ; Gamal Rayan |
| 1-Jan-2018 | Genetic differences in eggshell ultrastructural properties of saudi native chicken breeds kept at high ambient temperatures | Fathi, Moataz; Ebeid, Tarek; Elsafty, Salah ; Abou-Emera, Osama; Gamal Rayan |
| 1-Dec-2020 | GROWTH PERFORMANCE, CARCASS TRAITS and ECONOMIC EFFICIENCY of PEKIN DUCKS AS AFFECTED by DIFFERENT RAISING PROTOCOLS under HOT CLIMATE | Gamal Rayan ; Ali, Amer M.; Hassan, Ali Z. |
| 1-Jun-2025 | Growth performance, slaughter traits, blood analysis and immune response of rabbit pure breeds and their crossbreds under high ambient temperature | Fathi, Moataz; Abdelsalam, Magdy; Al-Homidan, Ibrahim; Elzarei, Mohamed; Gamal Rayan |
| Feb-2010 | Impact of layer breeder flock age and strain on mechanical and ultrastructural properties of eggshell in chicken. | Rayan, Gamal ; Galal, Ahmed ; Fathi, Moataz ; El-Attar, Ahmed |
| Mar-2017 | Impact of Star Crack Eggshell Type and Layer Breeder Age on Eggshell Traits, Embryonic Mortality, Hatchability and Chick Quality. | Gamal Rayan ; F.B.A. Badri |
| 1-Jan-2025 | Impact of strain and probiotic supplementation on carcase characteristics, antioxidant status and meat quality of growing rabbits under hot climate | Fathi, Moataz; Abdelsalam, Magdy; M. M. Abd El-Razik ; Elsafty, Salah ; Abou-Emera, Osama; Alayouni, Raed; Gamal Rayan |
| Jun-2015 | Impact of Strain, Different Levels of Commercial Multi Enzymes and their Interaction on Broilers Performance and Carcass traits. | G.N. Rayan ; A. I. El-Faham ; M.A.M. Abdelaziz |
| Mar-2018 | Impact of Strain, Egg Type, Breeder Age and Their Interactions on Hatching Traits and Chick Quality. | Rayan, Gamal |
| 1-Jun-2021 | Impact of strain, season and age on embryonic mortality and malpositions of layer breeder’s embryos. | A. H. El-Attar; S. A. El-Safty; Gamal Rayan ; A. Mosaad; Y. Hamouda; A. Gaber; E.S. Moustafa |
| 1-Sep-2023 | IMPACT OF ULTRAVIOLET LIGHT ON GROWTH PERFORMANCE, BLOOD PARAMETERS AND SOME BEHAVIORAL STATUS OF BROILER CHICKENS | Abdelmoniem Mohamed Abdelmoniem Hanafy ; El-Safty, S.A.; Galal, A.; Abdelhady, A.Y.M.; Gamal Rayan |
| 1-Sep-2025 | Influence of probiotic supplementation and rabbit line on growth performance, carcass yield, blood biochemistry and immune response under hot weather | Abdelsalam, Magdy; Fathi, Moataz; El-Raffa, Alaa; El-Latif, Ghada Abd; Abou-Emera, Osama; El-Fatah, Mohamed Abd; Gamal Rayan |
| Jun-2015 | Influence of Strain and Dietary Level of Enzyme-Cocktail on Productive Performance, Blood Parameters and Lymphoid Organs of Broiler. | Abdelaziz, M.A.M. ; Nematallah, G.M. Ali ; Gamal Rayan |
| 1-Dec-2025 | The interaction effects of the naked neck gene and housing system on egg production, egg quality, blood biochemical parameters and immunity of laying hens under hot climate | Abou-Emera, Osama; Al-Homidan, Ibrahim; Gamal Rayan ; Fathi, Moataz |
| Sep-2016 | Ostrich's eggs: the productivity, quality and hatchability. | S.A. EL-Safty ; Gamal Rayan |
| Jun-2017 | Productive Performance of Hubbard Classic Broiler Breeder Chickens Under Different Housing Systems. | A.I. El-Faham ; S.A. Ibrahim ; S.A. El-Safty ; Nematallah G.M. Ali ; M.S. Hassanien ; Gamal Rayan |
| 1-Jun-2021 | Residual feed intake: A limiting economic factor for selection in poultry breeding programs | Fathi, M. M.; Galal, A.; Al-Homidan, I.; Abou-Emera, O. K.; Gamal Rayan |
| Jun-2015 | Response of Broiler Chicks Strain to Some Growth Promotors and their Interaction on Performance, Carcass Characteristics and Blood Plasma Constituents. | A. I. El-Faham ; A.M.H. Ahmed ; Gamal Rayan |
| 1-Nov-2025 | The role of E. coli infection on IBD antibodies in chicken detected by ELISA titers | Gamal Rayan ; H.H. Rezk |
| Jun-2013 | Study of Some Productive Performance and Egg quality Traits in Two Commercial Layer Strains. | G.N. Rayan ; M.Y. Mahrous ; A. Galal ; A.H. El-Attar |
| Dec-2017 | Testing Heterotic Effect and Strain Differences for Carcass Traits of Some Developed Local Strains of Chicken and their Crosses. | Gamal Rayan ; A.I. El-Faham ; S.A. Ibrahim |
