| Response of domestic animals to climate challenges J Gaughan, N Lacetera, SE Valtorta, HH Khalifa, LR Hahn, T Mader Biometeorology for adaptation to climate variability and change, 131-170, 2009 | 176 | 2009 |
| Bioclimatology and adaptation of farm animals in a changing climate HH Khalifa Interaction between climate and animal production, 15-29, 2003 | 71 | 2003 |
| Middle and Late Eocene Ostracoda from Gebel El Mereir, Nile Valley, Egypt TM Cronin, H Khalifa Micropaleontology, 397-411, 1979 | 51 | 1979 |
| Fractional crystallization and gas chromatographie analysis of fatty acids as a means of detecting butterfat adulteration RS Farag, SH Abo-Raya, FA Ahmed, FM Hewedi, HH Khalifa Journal of the American Oil Chemists Society 60, 1665-1669, 1983 | 42 | 1983 |
| Survival and fertility rate of cooled dromedary camel spermatozoa supplemented with catalase enzyme MS Medan, G Absy, AELS Zeidan, MH Khalil, HH Khalifa, ... Journal of Reproduction and Development 54 (1), 84-89, 2008 | 39 | 2008 |
| Stratigraphy, paleoenvironment and structural features of the area east of Beni Mazar, Upper Egypt S Omara, HH Mansour, M Youssef, H Khalifa Bulletin of Faculty of Science, Assiut University 6 (3), 171-197, 1977 | 32 | 1977 |
| Biometeorology for adaptation to climate variability and change J Gaughan, N Lacetera, SE Valtorta, HH Khalifa, L Hahn, T Mader, K Ebi, ... Response of domestic animals to climate challenges, 131-170, 2009 | 31 | 2009 |
| Cholesterol content and fatty acid composition of two fat depots from slaughter ostriches (Struthio camelus) aged 14 months JO Horbanczuk, I Malecki, RG Cooper, A Józwik, J Klewiec, J Krzyzewski, ... Animal Science Papers and Reports 22 (2), 247-251, 2004 | 29 | 2004 |
| OSTRACODES DE L'EOCENE MOYEN DE EL SHEIKH FADI, EST DE BENI MAZAR HAUTE-EGYPTE H Khalifa, M CRONIN | 25 | 1979 |
| An approach to develop a biometeorological thermal discomfort index for sheep and goats under Egyptian conditions HH Khalifa, T Shalaby, TMM Abdel-Khalek Proceeding of the 17th International Congress of Biometeorology …, 2005 | 23 | 2005 |
| Interactions between climate and animal production N Lacetera, U Bernabucci, HH Khalifa, B Ronchi, A Nardone Wageningen Academic Publishers, 2003 | 19 | 2003 |
| Étude biostratigraphique à l'aide des foraminifères planctoniques et des ostracodes de l'Éocène de Beni Mazar, Vallée du Nil, Égypte M Boukhary, M TOUMARKINE, H Khalifa, M Arif | 19 | 1982 |
| The cretaceous/paleocene boundary as defined by ostracodes at the north western approache of Kharga oasis, western desert Egypt H Khalifa, AR El-Younsy, MA El-Boukhary Bulletin of the Faculty of Science, Assiut University. C, Biology and …, 1984 | 18 | 1984 |
| Protective effect of some medicinal plants on blood parameters, kidney and liver functions and histopathogical features of kidney in rats MI Badr, HH Khalifa, AA Abd El Hamid, MH Khalil Egyptian Journal of Animal Production 49 (2), 233-240, 2012 | 17 | 2012 |
| Wool coat and thermoregulation in sheep under Egyptian conditions HH Khalifa Faculty of Agriculture, Al-Azhar University, Cairo, Egypt, 1982 | 16 | 1982 |
| Effect of selenium and vitamin E supplementation as a nutritional treatment for some physiological and productive traits of Holstein dairy cows under Egyptian summer conditions H Hisham Khalifa, MA Safwat, E Sysy, M Abd ElFatah, MAEH Al-Metwaly Journal of Egyptian Academic Society for Environmental Development. D …, 2016 | 15 | 2016 |
| Sedimentological and paleoenvironmental aspects of the Miocene succession in Gebel Al-Nikhsh, Qatar, Arabian Gulf MM Abu-Zeid, H Khalifa Neues Jahrbuch für Geologie und Paläontologie-Monatshefte, 385-399, 1983 | 15 | 1983 |
| Effect of in ovo injection of some nutrients and vitamins upon improving hatchability and hatching performance of ostrich embryos. NS Ibrahim, MM Wakwak, HH Khalifa | 14 | 2012 |
| Mitigating heat stress in broilers: 1-effect of feed restriction and early heat acclimation on productive performance TA Shamma, HH Khalifa, AA El-Shafei, MS Abo-Gabal Middle East Journal of Applied Sciences 4 (4), 967-982, 2014 | 13 | 2014 |
| Detection of cow milk admixture to buffalo milk RS Farag, MM Hewedi, SH Abo-Raya, HH Khalifa Journal of the American Oil Chemists’ Society 61, 913-916, 1984 | 13 | 1984 |
