Results 151 to 160 of about 3,855 (196)

Personality types in Budgerigars, Melopsittacus undulatus

Behavioural Processes, 2017
The current study further characterized personality types in Budgerigars, an avian model that only recently demonstrated individual consistencies in behavior (Callicrate et al., 2011). Several methodological techniques, commonly used in previous examinations of other animal models, were employed.
Michael R, Duggan, Julia Y, Lee-Soety, Matthew J, Anderson   +2 more
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Chronic Rhinitis and Sinusitis in Budgerigars (Melopsittacus Undulatus)

Avian Diseases, 1987
The microscopic lesions in the nasal cavity, nasal bones, and infraorbital sinuses of five budgerigars with chronic upper respiratory tract infection are described. All five had chronic inflammation of the lining of the air spaces within the bones surrounding the nares and infraorbital sinuses.
D A, Pass, C, Riddell
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Auditory pattern discrimination in budgerigars (Melopsittacus undulatus)

Behavioural Processes, 2022
Auditory patterns carry information in human speech at multiple levels, including the surface relationships between sounds within words in phonology and the abstract structures of syntax. The sequences of other animal vocalizations, such as birdsong, can also be described as auditory patterns, but few studies have probed how the sequences are perceived
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Sleep patterns in the parakeet Melopsittacus undulatus

Physiology & Behavior, 1989
Electrophysiological and behavioral studies of vigilance states were performed on adult specimens of the parakeet Melopsittacus undulatus. Four states of vigilance were identified: Wakefulness, drownsiness, slow wave sleep and paradoxical sleep. During wakefulness, a low voltage fast EEG pattern was observed.
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Scaly leg in budgerigars (Melopsittacus undulatus)

JOURNAL OF VETERINARY PARASITOLOGY, 2020
Scaly leg disease or scaly face is a common skin disease in caged budgerigars caused by Cnemidocoptes pilae. A flock of budgerigars (Melopsittacus undulatus) were presented with a history of beak deformity and white, crusty lesions around the limbs and feet, discomfort, fluffed feathers, inability to grip the perch, constant pecking at the feet as well
M. Palanivelrajan, C. Sreekumar, D. Sumathi, P. Pothiappan   +3 more
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Seminal plasma composition in budgerigars (Melopsittacus undulatus)

Comparative Biochemistry and Physiology Part A: Physiology, 1986
Seminal plasma composition was studied in budgerigars. Semen was obtained from adult male budgerigars by applying gentle pressure to both sides of the cloaca. Pooled samples were centrifuged at 15,000 g for 2 min, and the seminal plasma separated for biochemical analysis. Osmolality, Na+, K+, Cl-, pH, glucose and fructose values were determined.
J H, Samour, G K, Baggott, G, Williams, I T, Bailey, P F, Watson   +4 more
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The differentiation of the acrosome in the spermatid of the budgerigar (Melopsittacus undulatus)

Cell and Tissue Research, 1975
The development of the acrosome of the budgerigar spermatid was studied under the electronmicroscope. The acrosome arises from a granule derived from the Golgi apparatus which interacts with the nucleus to form a cone shaped acrosomal cap and a perforatorium.
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Uric Acid Ingluviolith in a Budgerigar (Melopsittacus undulatus)

Journal of Avian Medicine and Surgery
This clinical report describes an adult, female budgerigar (Melopsittacus undulatus) diagnosed with an ingluviolith. The patient presented for intermittent regurgitation, and a palpable foreign body was present in the crop. Radiographs showed a radiopaque foreign body, and computed tomography showed an approximately 16 × 12 mm (length 3 width ...
Perri, Wiggin, Heidi L, Hoefer
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A survey of causes of mortality in budgerigars (Melopsittacus undulatus)

Veterinary Record, 1980
Lesions found in 257 post mortem examinations of budgerigars (Melopsittacus undulatus) are recorded. The commonest disease was neoplasia, principally of the gonads, kidneys and fat. Hepatitis and focal hepatic necrosis, thyroid dysplasias and septicaemias were also common.
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The W-chromosome of the budgerigar, Melopsittacus undulatus

Chromosoma, 1963
The chromosome complement of male and female budgerigars (Melopsittacus undulatus) was studied in primary kidney cell cultures. van Brink's description of the male complement was confirmed. The 26 largest chromosomes can unequivocally be placed in 13 pairs.
Klaus Rothfels, Murray Aspden, Margaret Mollison   +2 more
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