关键词: 板齿鼠, 食物结构, 食性

Abstract:

Objective　To analyze the dietary composition of Bandicota indica to unearth the seasonal and annual patterns of the food structure, providing theoretical foundation for the development of scientific control countermeasures and sustainable management. Methods　The contents of rat stomachs were analyzed in conjunction with field observation. Results　Fibers accounted for (68.68±5.17)% in the gastric contents of the rats, while starch food (23.06±4.32)% and animal food (8.26±1.43)%, respectively. Significant differences were found in the gastric contents of subjects of different age, sex and in different seasons and years (P＜0.01). The proportion of starch and animal food in females was significantly greater than that in males. No significant differences were found in starch and fiber food consumed by the juvenile versus that by the sub-adults and adults, though the juvenile had higher intake of such kind of food (P＞0.05). However, the proportion of animal food consumption in adults was significantly higher than that in sub-adults and juvenile (P＜0.01). Considerable seasonal disparity in the food structure, characterized by higher amount of starch and animal food in summer and autumn and higher amount of fiber food in winter and spring, was also shown in B. indica. Conclusion　B. indica were mainly fed on fiber food, as well as starch and animal food, under natural conditions. Diversity of food structure was associated with the reproduction and population growth, growth season of crops and vegetation types of the habitat.

Key words: Bandicota indica, Food structure, Feeding habit