Results 221 to 230 of about 6,895 (265)

Echokardiographische Untersuchungen bei Psittaciformes

Tierärztliche Praxis Ausgabe K: Kleintiere / Heimtiere, 2003
ZusammenfassungUm die Einsetzbarkeit der Ultraschalluntersuchung zur Darstellung des Herzens bei Papageienartigen zu überprüfen, wurden insgesamt 110 klinisch gesunde Vögel (Graupapageien, Amazonen, Kakadus, Mohrenkopfpapageien, Mönchssittiche, Wellensittiche) untersucht.
Maria-Elisabeth Krautwald-Junghanns, J. Straub, M. Pees   +2 more
openaire   +2 more sources

The first fossil parrot (Aves, Psittaciformes) from Siberia and its implications for the historical biogeography of Psittaciformes [PDF]

Biology Letters, 2016
Modern parrots (crown Psittaciformes) are a species-rich group of mostly tropical and subtropical birds with a very limited fossil record. A partial tarsometatarsus from the late Early Miocene of Siberia (Baikal Lake) is the first pre-Quaternary find of crown Psittaciformes in Asia (and Siberia in particular) and is also the northern-most find of this ...
Nikita V Zelenkov
exaly   +3 more sources

The evolutionary history of cockatoos (Aves: Psittaciformes: Cacatuidae) [PDF]

Molecular Phylogenetics and Evolution, 2011
Cockatoos are the distinctive family Cacatuidae, a major lineage of the order of parrots (Psittaciformes) and distributed throughout the Australasian region of the world. However, the evolutionary history of cockatoos is not well understood. We investigated the phylogeny of cockatoos based on three mitochondrial and three nuclear DNA genes obtained ...
Matthew J Phillips, M Thomas P Gilbert, Alonzo Alfaro-Núñez   +2 more
exaly   +5 more sources

Neuropathic Gastric Dilatation in Psittaciformes

Avian Diseases, 1987
Psittacine neuropathic gastric dilatation was studied in four cockatoos (Cacatua spp.). The birds died with characteristic clinical signs, and post-mortem examination revealed a highly distended proventriculus. Upon light microscopic examination, most of the ganglia of the gastric plexus and some of the duodenal myenteric plexus appeared destroyed and ...
A, Mannl, H, Gerlach, R, Leipold
openaire   +2 more sources

HEAD‐SCRATCHING IN THE PSITTACIFORMES

Ibis, 1962
SUMMARYThe head‐scratching behaviour pattern is a valid taxonomic character. It supports the divisions within the Psittaciformes in the case of the Strigopinae, Nestorinae, Loriinae, and Kakatoeinae, but indicates that the Psittacinae are comprised of a number of groups.
J. le Gay Brereton, K. Immelmann
openaire   +1 more source

Temperament of Psittaciformes: A systematic review

Applied Animal Behaviour Science
Gabriela de Araújo Porto Ramos, Cristiano Schetini de Azevedo   +1 more
exaly   +2 more sources

A standardised ethogram for the Psittaciformes

Behavioural Processes
The standardisation of ethograms offers behavioural researchers many practical advantages. They make it possible to describe behavioural repertoires and their occurrence in different contexts accurately. As there is no standardised ethogram for Psittaciformes in the scientific literature, this study aimed to create one by compiling information from ...
Layane Yamila Viol, Érica da Silva Bachetti, Luciana Barçante, Cristiano Schetini de Azevedo   +3 more
openaire   +2 more sources

Salmonella enteritidis Infection in Two Species of Psittaciformes

Avian Diseases, 1992
In 1990, Salmonella enteritidis phage type 4 was recovered from two young (less than 20-week-old) lilac-crowned Amazon parrots (Amazona finschi Schlater), one in Tennessee and one in Kansas. The parrot from Tennessee was treated for a plugged naris and anorexia before the S. enteritidis infection was discovered.
S E, Orosz, M M, Chengappa, R A, Oyster, P J, Morris, S, Trock, S, Altekruse   +5 more
openaire   +2 more sources

Endoscopic Testicular Biopsy Technique in Psittaciformes

Journal of Avian Medicine and Surgery, 2002
Abstract Infertility and poor breeding performance are frequently encountered in avicultural facilities. The problems of infertility or inadequate performance may have either medical or nonmedical origins. It is not always possible to diagnose causes of infertility with the noninvasive diagnostic methods that are used routinely.
Lorenzo Crosta, Helga Gerlach, Marcellus Bürkle, Linda Timossi   +3 more
openaire   +1 more source

Longevity records for Psittaciformes in captivity

International Zoo Yearbook, 2000
Psittaciformes are generally believed to be long‐lived birds and are frequently said to reach ages of 100 years old or more. In reality, however, life spans rarely exceed 50 years of age, although a few reliable records exist of parrots aged up to 65–70 years.
K. BROUWER, M. L. JONES, C. E. KING, H. SCHIFTER   +3 more
openaire   +1 more source