15岁的罗威方猴Masaya在切斯特动物园接受了一场创新足部手术，成功避免了截肢的命运。1Masaya足部出现高尔夫球大小的肿块，2025年被送往利物浦大学进行CT扫描。1利物浦大学小动物教学医院的外科医生与动物园兽医合作，成功切除了肿块，保留了足部除一个脚趾外的所有部位。1医疗团队在医学文献中未能找到对罗威方猴进行相同手术的先例。1
手术数月后，Masaya顺利产下了女儿Lagertha，这是她的第三个女儿。1这一繁殖成功对该物种的保护工作具有重要意义。1罗威方猴是濒危物种，全球野生种群数量少于2000只，主要分布在加纳和象牙海岸，面临栖息地破坏和偷猎的威胁。1Masaya作为欧洲濒危物种繁殖计划的成员，在英国仅有的两个饲养该物种的地点之一——切斯特动物园——承担着重要的物种保护职责。1
Masaya, a 15-year-old critically endangered Roloway monkey, underwent innovative surgery at Chester Zoo to remove a golf ball-sized tumor from her foot while preserving her limb's function and avoiding amputation 1. The procedure was performed collaboratively by surgeons from Liverpool University's Small Animal Teaching Hospital and veterinarians from the zoo 1. Medical teams found no prior records of the same surgical intervention being attempted on Roloway monkeys, making this case unprecedented 1.
The operation proved successful, preserving all but one digit of Masaya's foot 1. Several months after the surgery, Masaya gave birth to a healthy daughter named Lagertha, marking her third offspring 1. This reproductive success carries significant implications for the species' survival, as fewer than 2,000 Roloway monkeys remain in the wild according to data from the International Union for Conservation of Nature 1. Native to Ghana and Ivory Coast, these primates face mounting threats from habitat destruction and poaching 1.
Chester Zoo serves as one of only two facilities in the United Kingdom housing Roloway monkeys 1. Masaya participates in the European Endangered Species Programme, a coordinated breeding effort aimed at maintaining genetic diversity and population viability 1.
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