Results 1 to 10 of about 189 (135)
Brightness discrimination in budgerigars (Melopsittacus undulatus). [PDF]
PLoS ONE, 2013 Birds have excellent spatial acuity and colour vision compared to other vertebrates while spatial contrast sensitivity is relatively poor for unknown reasons. Contrast sensitivity describes the detection of gratings of varying spatial frequency.
Olle Lind, Sandra Karlsson, Almut Kelber
doaj +4 more sources
Frontiers in Veterinary Science, 2023 A 2-year-old male budgerigar (Melopsittacus undulatus) died after a 1-day history of fracture of the rostral rhinotheca with pale mucous membranes, dyspnea, dull mentation, and ataxia.
Daniel Felipe Barrantes Murillo
exaly +3 more sources
Edge detection in landing budgerigars (Melopsittacus undulatus).
PLoS ONE, 2009 BackgroundWhile considerable scientific effort has been devoted to studying how birds navigate over long distances, relatively little is known about how targets are detected, obstacles are avoided and smooth landings are orchestrated. Here we examine how
Partha Bhagavatula +3 more
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A Preliminary Exploration of the Effects of Different Sound Types on the Behavior of Melopsittacus undulates (Budgerigar) [PDF]
BIO Web of Conferences, 2023 Objective: To explore the effects of different sound types (including different species, frequencies, and volumes on Melopsittacus undulatus singing and approach and avoidance behaviors.
Zhu Yuhan
doaj +1 more source
Veterinární Medicína, 2021 The aim of this clinical retrospective study was to analyse the prevalence of Trichomonas gallinae in budgerigars (Melopsittacus undulatus). The role of T. gallinae in budgerigars as the cause of a typical clinical picture (young vomiting budgerigars) is
M Hochleithner, C Hochleithner
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Detection of Blood Parasites in Different Pet Birds in Erbil City
مجلة الانبار للعلوم البيطرية, 2022 The current study was conducted to find out the different species of blood parasites that infect pet birds (Melopsittacus undulatus, Carduelis chloris and Carduelis carduelis) and to know the infection rates with these parasites and their ...
Waad Khalaf
doaj +1 more source
Telangiectatic Osteosarcoma in a Budgerigar (Melopsittacus undulatus) - Pathological Findings [PDF]
Iranian Journal of Veterinary Surgery, 2020 Background- Neoplastic diseases are one of the main factors that threaten the life span of pet birds. Osteoma and osteosarcoma are considered as the most prevalent of neoplasms in the skeletal system, which were reported in several species of the birds ...
Monireh Khordadmehr +3 more
doaj +1 more source
STRUCTURE DISTRIBUTION AND DENSITY OF THE MUSCLE SPINDLES IN GASTROCNEMIUS MUSCLE OF Melopsittacus undulates [PDF]
Journal of Productivity and Development, 2012 Five adult Melopsittacus undulates birds were used to study the morphology, density and distribution of the muscle spindles in gastrocnemius muscles in both right and left legs, employing serial transverse histologic sections stained with hematoxylin and
Amal El-Tarhonui, Mariam Ali El- Zian
doaj +1 more source
miRNAome expression profiles in the gonads of adult Melopsittacus undulatus [PDF]
PeerJ, 2018 The budgerigar (Melopsittacus undulatus) is one of the most widely studied parrot species, serving as an excellent animal model for behavior and neuroscience research. Until recently, it was unknown how sexual differences in the behavior, physiology, and
Lan Jiang +7 more
doaj +2 more sources
Retrobulbar rhabdomyosarcoma in a budgerigar (Melopsittacus undulatus) [PDF]
Avian Pathology, 2005 This report describes a retrobulbar rhabdomyosarcoma in a 7-year-old male budgerigar (Melopsittacus undulatus). The bird was presented with orbital distension and exophthalmia of the left eye and died during surgery. Necropsy revealed a tan to grey retrobulbar mass compressing all components of the left eye with obscured vision.
Gulbahar, MY +3 more
openaire +3 more sources