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GINTHER OJ et al,. (1972). Characteristics of estrus, diestrus and ovulation in mares and effects of season and nursing. Am J Vet Res, 33, 1935–1939.
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Glen-Leary J,. (1987). Stud book for zebras. Farmer's weekly, .
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GODFREY D et al,. (1987). Zebra stripes and tiger stripes: the special frequency distribution of the pattern compared to that of the background is significant in disply and crysis. Biol J Linnean Soc, 32, 427–433.
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Godfrey Eb, L. P. (1986). Wild horsres mangement: An economic perspective. J Equine Vet Sc, 6, 266–273.
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Göbel, F., & Zeeb, K. (1963). Primitivpferde und ihre Haltung. Tierarztl. Umschau, 18, 64–79.
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Götze, R. (1941). Spermagewinnung und künstliche Besamung bei Pferd und Rind. Inst Wiss Film Göttingen, Film C 390, .
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Gollbeck E,. (1941). Das Maultier. Kosmos, 38, 169–171.
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GRAHAM A et al,. (1986). An aerial survey of horses and other karge animals in Alice Springs and Gulf regions. Cons Comm North Terr Alice Springs Techn Rep, .
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Granger W,. (1908). A revision of the american eocene horse. Bull Amer Mus Nat Hist, 24, 221–264.
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