Abstract
The reproductive patterns of both sexes of the Egyptian Fruit Bat, Rousettus aegyptiacus, were studied in a population inhabiting a roost within Giza Governorate, northern Egypt. Bat specimens were collected over a period of 13 months extending from June 2017 to June 2018, inclusive. The reproductive cycle of males consisted of four consecutive phases, namely the active phase in autumn and the early winter months (October to January), the regressing phase in late winter and early spring months (February to April), the regressed phase in late spring and summer (May to August), and the recrudescence phase in early autumn (September). No active sperms were observed in smears of the cauda epididymis during the regressed phase (June–August) and males were considered to be sexually inactive during this phase. Varying percentages of reproductively active females (pregnant, lactating, pregnant and lactating) were collected in all months, with peaks in summer (June–July) and late autumn and early winter (November–January).
Published Version
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