R. Alkali, B., Department of Veterinary Microbiology, Usmanu Danfodiyo University, Sokoto, Nigeria
R. Hamandishe, V. , Department of Animal science, University of Zimbabwe, Box MP 167, Mt. Pleasant, Harare, Zimbabwe
R. Javanmard, M., Department of Veterinary and Food Hygiene; University of Scientific-Applied, Arak, IRAN
R. Muhammad, I., Department of Animal Science, Bayero Univeristy, Kano- Nigeria
R. Safaei, A., Department of Ruminant and Poultry nutrition, Faculty of Animal Science, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
R. Sobreira, M.F., School of Agriculture and Veterinary Science – Sao Paulo State University – UNESP, Jaboticabal/SP, 14.800-000, Brazil
Ranjbar, K. , Department of Animal Science, Faculty of Agriculture, Ilam University, Ilam-Iran
Raphael, Kana Jean , University of Dschang, Faculty of Agronomy and Agricultural Sciences, Research Unit of Animal Production and Nutrition. POBox 222 Dschang, Cameroon
Reissmann, M. , Department of Breeding Biology and Molecular Genetics, Faculty of Agriculture and Horticulture, Humboldt University of Berlin, Germany
Rezaei, Mohhamad , Department of Food Safety and Hygiene, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
Rezaeian, Mostafa , Parasitology and Mycology Department, Faculty of Hygiene, Tehran University of Medical Sciences, Tehran, Iran
Rinah Setlalekgomo, Mpho , Department of Basic Sciences, Botswana College of Agriculture, Gaborone, Botswana
Roy, D. , Assistant Professor, Department of Animal Nutrition, College of Veterinary Sciences & Animal Husbandry, DUVASU, Mathura -281001(UP), India
Rubens, Ngouana Tadjong , University of Douala, Institute of Fisheries and Aquatic Science of Yabassi, Aquaculture Department, Laboratory of Aquaculture and Demography of Fisheries Resources, POBox 7236 Bassa-Douala, Cameroon
Rubenstein, D.I. , Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544-2016 USA.

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