Article
Agriculture, Dairy & Animal Science
Demirel Ergun, Atilla Taskin
Summary: This study simulated the environment of hand-raised budgerigars in captivity and examined the effect of coloured LED lights on their behaviour. The results showed that the birds preferred yellow light and displayed more comfort and social behaviours under blue light. This information can be used to enhance the living conditions of pet budgerigars.
Article
Psychology, Biological
Adam R. Fishbein
Summary: This study examines the level of attention budgerigars give to surface relationships and abstract relationships when perceiving auditory patterns. The results show that budgerigars primarily focus on surface transitions between sounds, but are able to utilize abstract relationships to a limited extent, particularly with two elements.
BEHAVIOURAL PROCESSES
(2022)
Article
Audiology & Speech-Language Pathology
Kenneth S. Henry, Yingxuan Wang, Kristina S. Abrams, Laurel H. Carney
Summary: Schroeder-phase harmonic tone complexes with different phase-scaling parameter C values have different temporal envelopes and instantaneous-frequency sweeps. Human tone-detection thresholds are lower for positive C values (rising frequency sweeps) compared to negative values (falling sweeps). Birds, such as budgerigars, are used as models to study Schroeder masking, and their behavioral thresholds show minimal difference between opposite C values. Neural recordings in the midbrain of budgerigars demonstrate temporal and rate-based encoding of Schroeder F0, as well as marked asymmetry in Schroeder responses between C polarities. Furthermore, neural thresholds for Schroeder-masked tone detection are generally similar between opposite C values. The results emphasize the importance of envelope cues in Schroeder masking and suggest that supra-threshold Schroeder responses do not necessarily result in neural threshold differences. (c) 2023 Elsevier B.V. All rights reserved.
Article
Infectious Diseases
Didem Pekmezci, Gamze Yetismis, Cagatay Esin, Onder Duzlu, Zeynep Nurselin Colak, Abdullah Inci, Gokmen Zafer Pekmezci, Alparslan Yildirim
Summary: This study investigates the occurrence and genotypes of Encephalitozoon spp. and E. bieneusi in budgerigars, revealing novel genotypes in avian hosts and potential risks to public health.
Article
Pathology
Nathan K. Hoggard, Linden E. Craig
Summary: This study investigated the formation of medullary bone in sexually mature male budgerigars and found a correlation between testicular neoplasms and medullary bone formation.
VETERINARY PATHOLOGY
(2022)
Article
Pathology
Taryn A. Donovan, Michael M. Garner, David Phalen, Drury Reavill, Sebastien Monette, Alexandre B. Le Roux, Melissa Hanson, Sue Chen, Cyndi Brown, Catalina Echeverri, Katherine Quesenberry
Summary: Xanthogranulomatosis is a rare inflammatory lesion in birds, with lipid accumulation, necrosis, fibrosis, and mineralization. This study describes disseminated xanthogranulomatosis in eclectus parrots and budgerigars, presenting with hepatobiliary disease and lipid accumulation in various organs. This condition should be considered as a differential diagnosis in cases of coelomic mass formation and distension in psittacine birds.
VETERINARY PATHOLOGY
(2022)
Article
Microbiology
Dominika Kadleckova, Michal Vinkler, Ruth Tachezy, Martina Salakova
Summary: A parvovirus genome was identified in Melopsittacus undulatus, with a length of 4,547 bp and encoding two major open reading frames (ORFs): the non-structural replicase protein 1 (NS1) and the structural capsid gene (VP1). Phylogenetic analysis indicates that this virus belongs to the genus Chaphamaparvovirus.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2023)
Article
Neurosciences
Yingxuan Wang, Kristina S. Abrams, Margaret Youngman, Kenneth S. Henry
Summary: This study investigates the budgerigar as an animal model for synaptopathy research and evaluates the effects of kainic acid-induced auditory nerve damage using histological and physiological methods.
JARO-JOURNAL OF THE ASSOCIATION FOR RESEARCH IN OTOLARYNGOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Pallavi Upadhyay, M. Palanivelrajan, A. Senthilkumar, P. Selvaraj
Summary: This study was conducted to evaluate the feasibility and safety of minimally invasive coelioscopy in smaller exotic birds like budgerigar, and to collect baseline data of their internal organs.
INDIAN JOURNAL OF ANIMAL SCIENCES
(2023)
Article
Veterinary Sciences
Christina Doukaki, Nikolaos Papaioannou, Minh Huynh
Summary: The report described two cases of keratoacanthomas in birds that developed due to extensive skin lesions caused by Knemidocoptes spp. infection. Both birds ultimately died from profuse hemorrhaging caused by the well-vascularized tumor. Further studies are needed to confirm the association between these disorders.
JOURNAL OF EXOTIC PET MEDICINE
(2021)
Article
Veterinary Sciences
Lauren E. Mumm, Christoph Mans
Summary: This study evaluated the sedative effects of high or low doses of dexmedetomidine in combination with midazolam in budgerigars. The results showed no significant difference in sedation and recovery time between the two groups, and no cardiorespiratory compromise was detected.
JAVMA-JOURNAL OF THE AMERICAN VETERINARY MEDICAL ASSOCIATION
(2022)
Article
Psychology, Biological
Sota Watanabe
Summary: Budgerigars can perceive the Müller-Lyer illusion in the same direction as humans, but with a larger magnitude.
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-ANIMAL LEARNING AND COGNITION
(2022)
Article
Biotechnology & Applied Microbiology
Emma Bartram, Masanori Asai, Philippe Gabant, Sivaramesh Wigneshweraraj
Summary: This study retrofitted probiotic Escherichia coli bacteria to overproduce heterologous bacteriocins and found that strains producing the lowest amount of bacteriocins displayed the highest antibacterial efficacy with minimal impact on their fitness, highlighting important considerations for retrofitting probiotic bacteria.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Anthropology
Autumn G. Jones, Alexander J. Skolnick, Matthew J. Anderson
Summary: The study showed that interactions with live birds can maintain positive affect and decrease negative affect, indicating a clear affective benefit. Current research mostly focuses on the benefits of dogs and cats, calling for more studies on the effects of interactions with other under-studied pet animals.
Review
Nutrition & Dietetics
Josemar Goncalves de Oliveira Filho, Adriana Sousa e Silva Carvalho, Jordana dos Santos Alves, Mariana Buranelo Egea
Summary: Phenylketonuria (PKU) is a rare genetic disease that causes brain toxicity. The current treatment is lifelong dietary intervention, but adherence to this intervention is low in adults. Genetically modified probiotics could be a therapeutic strategy to degrade dietary phenylalanine and reduce its intake. Promising results have been shown in vitro and in vivo, suggesting that these engineered probiotics may meet the unmet need for new drugs for PKU.