中文摘要：

研究了一类具有Leslie-Gower和Holling-Ⅱ型功能反应的捕食-食饵模型,通过利用重合度理论和一些分析技巧获得了关于该模型周期正解存在的充分条件.

英文摘要：

In this paper,the predator-prey model with modified Leslie-gower Holling-type Ⅱ schemes is studied by utilizing the coincidence degree theorem.Some sufficient conditions are obtained for the existence of positive periodic solutions of the model.