Zhou Qiang, Luo Bo, Yang Bo, Li Desheng, Wei Rongping, Xie Chunyu, Yu Jinhua, Meng Xiangqian, Cheng Jianbin, He Ming, Yang Liu
Key Laboratory of State Forestry and Grassland Administration on Conservation Biology of Rare Animals in the Giant Panda National Park, China Conservation and Research Center for the Giant Panda, Chengdu, China.
Shanghai Wild Animal Park, Shanghai, China.
Front Vet Sci. 2025 Apr 24;12:1552754. doi: 10.3389/fvets.2025.1552754. eCollection 2025.
This study investigated a case of abnormal estrus in a captive adult female giant panda () (X#, 130 kg) in 2024 to explore the possible relationship between overweight or obesity and estrus behavior in female giant pandas. Behavioral observations and urinary estrogen conjugate/creatinine (EC/CR) measurements revealed a significantly attenuated hormonal profile (peak EC/CR: 34.1 ng/mg vs. normal range 80-150 ng/mg) alongside muted receptivity (e.g., absent tail-lifting). Comparative analysis with historical cases of abnormal estrus (panda 2#: obesity-linked low EC/CR; panda 1#: normal EC/CR with behavioral anomalies) implicated obesity as a driver of reproductive impairment. And several actionable interventions were proposed: bamboo-based dietary reform, structured exercise protocols, and gut microbiota monitoring. This case underscores obesity as a modifiable risk factor in captive panda reproduction, urging integration of metabolic health into breeding management.
本研究调查了2024年一只圈养成年雌性大熊猫（体重130千克，编号X#）发情异常的案例，以探讨超重或肥胖与雌性大熊猫发情行为之间可能存在的关系。行为观察和尿液雌激素结合物/肌酐（EC/CR）测量结果显示，其激素水平显著降低（峰值EC/CR：34.1纳克/毫克，而正常范围为80 - 150纳克/毫克），同时接受度也较低（例如，无抬尾行为）。与发情异常的历史案例（2#大熊猫：肥胖相关的低EC/CR；1#大熊猫：行为异常但EC/CR正常）进行比较分析表明，肥胖是生殖障碍的一个驱动因素。并且提出了一些可行的干预措施：基于竹子的饮食改革、结构化运动方案和肠道微生物群监测。该案例强调肥胖是圈养大熊猫繁殖中一个可改变的风险因素，促使将代谢健康纳入繁殖管理。
