Time filter

Source Type

Olias P.,Free University of Berlin | Schulz E.,Charité - Medical University of Berlin | Ehlers B.,Robert Koch Institute | Ochs A.,Zoologischer Garten Berlin AG | And 2 more authors.
Journal of Medical Primatology | Year: 2012

Background Cervical Cancer is the second most common cancer among women. Nevertheless, similar tumours have only been rarely described in Great Apes. This report characterizes the pathological and molecular features of a metastatic endocervical adenocarcinoma in a Western lowland gorilla (Gorilla g. gorilla). Methods Necropsy and histopathology was performed to identify the cause of the disease in an cachectic 50-year-old western lowland gorilla. Immunohistochemistry for Ki67, oestrogen receptor alpha and ERBB2 was performed to characterize the tumor. In addition, Pan-herpesvirus and Pan-papillomavirus PCR were used to identify a possible viral cause. Results The endoccervical carcinoma showed a severe metastatic spread to the lung, brain and bone and was herpesvirus and papillomavirus-negative. Most tumor cells were ERBB2-positive, 15% of tumor cells were Ki67-positive and only few tumor cells had oestrogen receptor alpha expression. Conclusions Histopathologically and immunohistochemically, the tumour had striking similarities to human endocervicial adenocarcinomas of the common type. However, PCR analysis failed to identify herpes- or papillomaviral DNA in the tumor at the time of necropsy, thus leaving the question for cause of the disease open. © 2012 John Wiley & Sons A/S.

In the beginning of 2011 an Australian Pelican (Pelecanus conspicillatus) hatched at the Berlin Zoological Garden and was hand raised. The article described the raising conditions and diet of the squab. In addition to that a historical overview of the keeping of Australian Pelicans at the Zoological Garden of Berlin was given. © 2011.

Olias P.,Free University of Berlin | Mundhenk L.,Free University of Berlin | Bothe M.,Free University of Berlin | Ochs A.,Zoologischer Garten Berlin AG | And 2 more authors.
Journal of Comparative Pathology | Year: 2012

The African black rhinoceros (Diceros bicornis) has adapted to a low iron diet during evolution and is thus prone to iron overload in captivity, which is associated with a number of serious disorders. A S88T polymorphism in the HFE gene has been suggested as a potential genetic basis of increased iron uptake in the black rhinoceros, while the Indian rhinoceros is thought to be unaffected by iron overload in captivity. In the present study, the histopathology and distribution of iron accumulations in five black rhinoceroses with iron overload syndrome were characterized and compared with three Indian rhinoceroses (Rhinoceros unicornis) and one African white rhinoceros (Ceratotherium simum). At necropsy examination, iron storage in black rhinoceroses was not associated with gross lesions. Microscopically, the most consistent and highest degree of iron load was found in the spleen, liver, small intestine and lung. There was minimal fibrosis and single cell necrosis in the liver. Endocrine organs, lymph nodes, heart and kidney were less often and less markedly affected. Unexpectedly, Indian rhinoceroses also showed iron load in the spleen and smaller amounts in organs similar to the black rhinoceros except for in the heart, while the white rhinoceros had only minor detectable iron storage in intestine, liver and lung. Sequence analysis confirmed the HFE S88T polymorphism in black but not in Indian rhinoceroses. The results indicate that Indian rhinoceroses may also be affected by iron storage in captivity, although in a milder form than the black rhinoceros, and therefore challenge the relevance of the S88T polymorphism in the HFE gene of black rhinoceroses as the underlying cause for iron overload. © 2012 Elsevier Ltd.

A young female Californian sea lion, born on 5th June 2011 at Berlin Zoological Garden, has been observed producing air bubble rings and playing with them by destroying. This behavior was documented on a digital video, a second digital video showing this behaviour has been found on the internet. The animal blows here the air forming a ring at the deepest point of the pool and repeated this behavior several times. It seems that the pinniped has refined this play comparing to the first video. Although there is some literature about whales playing with self-produced air bubble rings, there is only less notice for this object play in pinnipeds. © 2014 .

The author gives a survey about keeping and breeding of sea squirts (Ascidiacea) at both Zoo-Aquarium Berlin and Tierpark Berlin. Eight different species from different families could be presented, mostly solitary ascidia. Two pacific sea squirt species (H. aurantium and H. roretzi) have been imported from the Bay Peter the Great from the Japanese Sea to the Tierpark via Moscow. The Mediterranean species Halocynthia papillosa belongs to the stock since the times of director Werner Schröder. Ciona instestinalis reproduces very well by division of individuals forming clones. Only two tropical ascidias have been kept on evidence. Botryllus schlosseri belongs to the synascidia and has been acquired 1968. It was present until 1976. © 2012.

Due to the night observations during the gravidity of the Asian Elephant " Pang Pha" in 2005 it was possible to receive data on the sleeping behavior of 1.3 Asian elephants (Elephas maximus) at Berlin Zoological Garden. These elephants were the breeding bull " Victor" (born 22.10.1993 at Zoological Center Ramat Gan), " Pang Pha" (born 1987 in Thailand), " Drumbo" (born 1970) and " Iyoti" (born 1974 in India). Elephant " Pang Pha" slept only one and a half hour, whereas the two older cows lay nearly four hours. The bull lay longest. © 2012 .

Loading Zoologischer Garten Berlin AG collaborators
Loading Zoologischer Garten Berlin AG collaborators