迁地驯养孟加拉巨蜥一些繁殖特性的初步研究

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3390 g±139 g,体长(SVL)为52.9 cm±2.5 cm,雌性巨蜥体重为3320 g,体长(SVL)约49.5 cm.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56.9 mm±2.6 mm(n=21),宽径为33.3 mm±1.5 mm (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 of Varanus bengalensis in Captivity

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.