Feeding characteristics of captive giant pandas on different bamboo species in Guizhou Province

The utilization of local bamboo resources for captive giant pandas (Ailuropoda melanoleuca) is a critical component of zoo management and conservation strategies. This study investigates the feeding behavior of captive giant pandas on 56 bamboo species from 17 genera, based on the current availability of bamboo resources in Guizhou Province, China. The results indicate that the two captive giant pandas exhibited a broad dietary range, consuming 53 (94.64%) of the bamboo species offered. The pandas primarily consumed the leaves of most bamboo species, while stems were rarely eaten. Notably, they displayed a strong preference for bitter bamboo (Pleioblastus amarus) and broad-leaved reed bamboo (Indocalamus latifolius). Statistical analysis revealed a highly significant difference in the consumption of bitter bamboo stems compared to other species (P P > 0.05). Further analysis of leaf weight and leaf area demonstrated that the pandas preferentially consumed bamboo species with significantly heavier and larger leaves (P < 0.01). These findings highlight distinct feeding preferences of captive giant pandas for specific native bamboo species. The study provides a valuable example for optimizing the captive breeding and management of giant pandas in Guizhou Province and offers a scientific basis for selecting local bamboo species as food sources for captive giant pandas in other regions.