环尾狐猴在华南地区的饲养与繁殖

以广州动物园人工饲养的10只环尾狐猴（雄性5只，雌性5只）为研究对象，根据广州地区多雨潮湿的气候条件，以400m。草地作为饲养场地，配置栖枝、凉亭和恒温保暖箱，采取逐只投喂的办法进行饲养。在广州地区的气候条件下，环尾狐猴2岁即可进行繁殖交配，发情期为8～9月，妊娠期为5个月，育幼主要由母猴来完成，雄猴可参与育幼，母猴有明显的护食行为。当气温低于15℃时，狐猴进入恒温保暖箱活动。在华南地区的气候条件下，环尾狐猴的饲养管理需做好防雨、防晒工作，冬季气温低于15℃时需开启恒温保暖设施。在繁殖育幼期，需添加面包虫等食物，并合理搭配成年雌雄性狐猴比例，防止动物打斗而出现伤亡。本文主要阐述环尾狐猴在广州地区的饲养繁殖、防寒保暖、环境丰容等方面的技术要点，为在华南地区环尾狐猴的保育及进一步研究奠定基础。     

环尾狐猴的饲养繁殖和人工育幼

以石家庄市动物园人工饲养的环尾狐猴为研究对象,通过对环尾狐猴的生物学特性以及人工圈养条件下的环境、行为、营养、繁殖、人工育幼等多方面进行分析和研究,为环尾狐猴的饲养繁殖工作提供了一定的实践依据。     

定时饲喂器丰容对笼养环尾狐猴(Lemur catta)行为的影响

2017年3—6月,在上海动物园笼养环尾狐猴展区布设定时饲喂器,探讨其对环尾狐猴(Lemur catta)行为的影响。采用瞬时扫描法记录环尾狐猴行为,分析环尾狐猴的行为变化及其对定时饲喂器的认知。开展定时饲喂器丰容后,环尾狐猴的休息行为显著减少,移动和取食行为显著增加(Mann-Whitney U,P<0.05),对展区空间利用发生了显著变化(chi-square test,P<0.05)。环尾狐猴通过学习,适应了定时投喂器的工作模式,并形成了相应的行为模式。本次丰容在短时间内效果较好,但在后期,动物的反应速度减慢。     

环尾狐猴的饲养繁殖与人工育幼技术

2010年,对吉林省东北虎园所饲养的环尾狐猴进行了饲养繁殖方面的研究。从环尾狐猴的日粮配制、繁殖行为、人工育幼等方面入手,就笼养条件下环尾狐猴的饲养繁殖进行了较系统地阐述,以期为饲养繁殖环尾狐猴提供参考和借鉴。     

兰州市动物园环尾狐猴的饲养管理

环尾狐猴(Lemur catta),是狐猴科狐猴属的一个种,具有较高的观赏展出和科研价值。主要分布于非洲南部的马达加斯加岛南部和西南部。本研究对甘肃省兰州市动物园的环尾狐猴进行了调查研究,主要从环尾狐猴的生物学特性,日常饲养,常见疾病的治疗等方面阐述了动物园中环尾狐猴的饲养管理,以提高环尾狐猴饲养的福利水平,为其生物学研究及饲养管理提供科学依据。     

香港成功繁殖了黑白领狐猴等濒危动物

香港动植物公园最近成功繁殖了黑白领狐猴、环尾狐猴及白面僧面猴等濒危灵长类动物。黑白领狐猴双胞胎、环尾狐猴三胞胎、白面僧面猴独生女等6名濒危物种“新秀”8月28日在媒体面前正式亮相。     

环尾狐猴桡尺骨骨折1例

正1临床检查幼环尾狐猴,3月龄,母,体重为530 g。2015年5月19日上午,被其它环尾狐猴咬伤。右前肢不负重,有开放性伤口、出血。触诊敏感,异常活动有骨摩擦音。2手术治疗2.1麻醉与保定将幼环尾狐猴保定隔离到网兜后,硫酸阿托品0.05 mL皮下注射,基础麻醉为舒泰2.5 mg肌肉注射,等幼环尾狐猴进入麻醉状态后,行气管插管,先用5%的异氟烷维持麻醉深度10 min,待幼环尾狐猴     

环尾狐猴死亡病例分析

<正>深圳野生动物园2008年9月从上海野生动物园引进6只环尾狐猴,散养在一个底面直径约15m、高7 m的圆柱形铁笼内,铁笼的地面为水泥,外围约三分之一种植着较密集的竹子,竹子高度超过笼子,导致炎热的夏天影响空气流通。2009年5月、2010年8月、2010年9月分别有1只环尾狐猴出现后肢无力,治疗无效,逐渐出现瘫痪,以致死亡。现将其发病情况、临床症状、诊断、治     

环尾狐猴在高原地区的饲养繁殖

<正>环尾狐猴(Lemurcatta)又称节尾狐猴,属于灵长目狐猴科,分布于非洲南部的马达加斯加岛南部和西南部,由于环尾狐猴受原产地人类活动的影响日趋严重,原始森林大面积减少,栖息地受到严重破坏,现在野生种群数量急剧减少,被世界自然保护联盟(IUCN)红色名录列入"易危"级别,在《濒危野生动植物种国际贸易公约》亦被列入《附录Ⅰ》。因其性情温顺,具有一对大大的双眼,生着一条美丽带有黑白相     

幼龄环尾狐猴的行为训练

<正>动物行为训练能减少幼龄动物在日常管理和治疗过程中的应激，提高动物福利。1训练对象2只环尾狐猴幼崽。幼崽104日龄后均出现轻微掉毛情况，在上药治疗等过程中，发现2只幼崽存在胆小、对声音敏感，人员干扰时应激大等情况，故尝试对2只幼龄个体进行行为训练，减少应激。雌性幼崽：104日龄，无训练基础，性格较活泼，喜攀爬、跳跃，进食积极，不怕生。     

环尾狐猴幼仔的救护

介绍了环尾狐猴幼仔的发病情况、救护情况、饲喂情况、管理情况以及放归种群的成功经验,以期为救护野生动物提供参考。     

Thoracic Limb Morphology of the Ring‐tailed Lemur (Lemur catta) Evidenced by Gross Osteology and Radiography

There is limited information available on the morphology of the thoracic limb of the ring‐tailed lemur (Lemur catta). This study describes the morphology of the thoracic limb of captive ring‐tailed lemurs evidenced by gross osteology and radiography as a guide for clinical use. Radiographic findings of 12 captive ring‐tailed lemurs are correlated with bone specimens of three adult animals. The clavicle is well developed. The scapula has a large area for the origin of the m. teres major. The coracoid and hamate processes are well developed. The lateral supracondylar crest and medial epicondyle are prominent. The metacarpal bones are widely spread, and the radial tuberosity is prominent. These features indicate the presence of strong flexor muscles and flexibility of thoracic limb joints, which are important in arboreal quadrupedal locomotion. Furthermore, an ovoid ossicle is always seen at the inter‐phalangeal joint of the first digit. Areas of increased soft tissue opacity are superimposed over the proximal half of the humerus and distal half of the antebrachium in male animals as a result of the scent gland. Knowledge of the morphology of the thoracic limb of individual species is important for accurate interpretation and diagnosis of musculoskeletal diseases.     

Gastrointestinal Morphology of the Crowned Lemur (Eulemur coronatus)

I provide measurements of the gastrointestinal tract of a captive female Eulemur coronatus, obtained at necropsy, and describe its morphology. The small intestine, caecum and colon were short when compared with those of other lemur species. The ratio of intestine length to body length was low. Distinct sacculations were present in the caecum, but not in the colon. The results suggest that E. coronatus is able to digest a certain amount of structural polysaccharides as contained in plant cell wall. The main fermentation chamber seems to be the caecum. Its digestive morphology implies that E. coronatus relies on a diet higher in energy‐rich cell contents than those of other lemur species of similar body size.     

Hepatic capillariasis in captive ring-tailed lemurs (Lemur catta)

A female ring-tailed lemur (Lemur catta) and her two cubs held in a zoo in Chile exhibited signs of severe hepatic insufficiency. In spite of supportive treatment, the three animals died a few days after the onset of signs. Postmortem examination revealed ascites and fibrotic lesions in the liver of all the individuals. Histologically, the liver of two of them showed a severe parasitic ova infection and lipidosis, the morphologic characteristics of the parasitic ovas were consistent with Capillaria hepatica (syn. Calodium hepatica) eggs. To the authors' knowledge, this is the first clinical case report of hepatic capillariasis in prosimians, and its implications are discussed.     

T-cell-rich B-cell lymphoma in a ring-tailed lemur (Lemur catta).

A 13-yr-old ring-tailed lemur (Lemur catta) was evaluated for depression, anorexia, polyuria, and polydipsia. The lemur was in poor body condition and was anemic, hypoalbuminemic, and hyponatremic. Cytologic examination of aspirates of the spleen, liver, and bone marrow and histopathologic examination of liver and bone marrow biopsies revealed a disseminated round cell tumor. After euthanasia, necropsy revealed hepatomegaly, splenomegaly, and mesenteric lymphadenomegaly. Neoplastic cells were present within the spleen, liver, kidneys, multiple lymph nodes, bone marrow, lung, small intestine, pancreas, and testicle and were composed of large anaplastic round cells in a background of small well-differentiated lymphocytes. Immunohistochemical analysis revealed that the small well-differentiated lymphocytes labeled for the anti-human T-cell marker, CD3, and the large anaplastic round cells labeled with the anti-human B-cell marker, CD79a. On the basis of the immunohistochemical staining results and morphologic appearance, a diagnosis of a T-cell-rich B-cell lymphoma was made.     

Evaluation of modified techniques for immobilization of wild ring-tailed lemurs (Lemur catta)

Wild ring-tailed lemurs (Lemur catta) can be anesthetized with Telazol via blow dart, but improved techniques are needed so that each lemur is reliably induced with a single dart. Medetomidine-butorphanol (MB) is a good supplemental protocol to be administered once the lemurs are captured, but other protocols may provide longer periods of sedation and immobility. One possible way of increasing the efficacy of each dart is to increase the time it is retained in the leg. In this investigation, a "double-sleeve" technique was used to try to increase the time of dart retention. This technique used a standard silicone sleeve on the needle, along with a second sleeve at the needle hub. Induction values were compared between lemurs darted with double-sleeve needles and those induced with needles that each had a single silicone sleeve. Once the lemurs were induced, supplementation with MB (0.04 mg/kg and 0.2 mg/kg) was compared with supplementation with ketamine-medetomidine (KM) (10 mg/ kg and 0.04 mg/kg). Twenty-three lemurs were darted with Telazol by using single-sleeve needles, and 24 were darted with double-sleeve needles. The number of darts per lemur and number of escapes were not different between animals darted with a single sleeve compared with a double-sleeve; thus, there were no significant improvements in induction success with the double-sleeve technique. Adequate sedation and muscle relaxation were achieved with both MB and KM; however, lemurs that received MB were more relaxed and needed fewer additional supplements that those that received KM. Single-sleeve dart needles are recommended for Telazol induction of ring-tailed lemurs via blow dart and MB is preferable to KM for supplemental sedation and muscle relaxation.     

Osteoblastic osteosarcoma in a Grey Mouse Lemur (Microcebus murinus) - short communication

The Grey Mouse Lemur (Microcebus murinus) is a nocturnal lemur species that lives only in Madagascar. It is one of the most abundant lemur species and its native populations are not endangered, but animals belonging to this species are rarely exhibited in zoos. While tumours are quite frequently described in other primates, there are very few publications about neoplasia in lemurs. In this case report we describe a mandibular osteoblastic osteosarcoma in a Grey Mouse Lemur (Microcebus murinus). To the best of the authors' knowledge, this is the first scientific article describing osteosarcoma in a prosimian and also reporting a tumour in the mandible in this taxon.