迁地驯养孟加拉巨蜥一些繁殖特性的初步研究

Some Reproductive Characteristics of Varanus bengalensis in Captivity

2005～2006年对8条孟加拉巨蜥的体重、体长、繁殖行为、卵径等繁殖特性进行了初步研究。雄性巨蜥体重为3390g±139g,体长(SVL)为52.9cm±2.5cm,雌性巨蜥体重为3320g,体长(SVL)约49.5cm。巨蜥发情时间出现在4～8月,其中50%的发情行为发生在7月份。每次发情持续时间约为8.8±2.1天,两次发情间隔时间约为18.8±3.2天。巨蜥的求偶交配模式包括嗅闻、攀爬、诱导和跨爬4个环节。卵的长径为56.9mm±2.6mm(n=21),宽径为33.3mm±1.5mm(n=21)。繁殖期巨蜥的活动节律表明孟加拉巨蜥是典型的昼行动物。

Some reproductive characteristics were studied in the Bengal monitor （Varanus bengalensis） based on the data collected through All-occurrence recordings done during 2005 - 2006. Males weighed 3390 g ± 139 g and the female weighed 3320 g. The snout-vent length of males and females were 52.9 cm ± 2.5 cm （ n = 7 ） and 49.5 cm SVL（ n = 1 ）, respectively. The courtship period extended from April to August, and 50% of it occurred in July. The duration of a single courtship was 8.8 d ± 2.1 d and the interval between two neighboring courtships was 18.8 d ± 3.2 d （ n =4）. The courtship and mating pattern included four main elements ： smell, climb, scratch, and mount. The size of egg was （56.9 mm ± 2.6 mm） × （33.3 mm± 1.5 mm） （n =21 ）. The daily activity cycles indicated that the lizard is a diurnal animal.