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Computed Tomographic Anatomy of the Head in Cockatiel (Nymphicus hollandicus).
Vet Med Sci
March 2025
Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran.
Background: Nowadays, computed tomography (CT) scanning is one of the most practical and precise diagnostic imaging methods that can be utilized to evaluate the head in birds.
Objectives: This study aimed to present the normal anatomical data of the head of the cockatiel (Nymphicus hollandicus) using the CT method. In this research, the features of this bird's head were investigated in terms of bones, joints, muscles, sinuses and other constituent tissues.
Multiple mutations in polyketide synthase led to disruption of Psittacofulvin production across diverse parrot species.
Commun Biol
January 2025
Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.
Polyketide synthases (PKSs) are crucial multidomain enzymes in diverse natural product biosynthesis. Parrots use a type I PKS to produce a unique pigment called psittacofulvin in their feathers. In domesticated budgerigars and lovebirds, the same amino acid substitution (R644W) within malonyl/acetyltransferase (MAT) domain of this enzyme has been shown to cause the blue phenotype with no psittacofulvin pigmentation, proposing a strong evolutionary constraint on the mechanism.
View Article and Find Full Text PDFCutaneous disorders in captive psittacines, a retrospective study of 1454 cases at a university veterinary teaching hospital (1988-2021).
Vet Dermatol
January 2025
Department of Medicine and Epidemiology, University of California, Davis, California, USA.
Background: Psittacines (parrots and their allies) are kept under human care as companion animals, live exhibit specimens in zoological institutions and occasionally as research subjects. Cutaneous disorders such as feather destructive behaviour (FDB) and pododermatitis are commonly noted in clinical reviews, case reports and text book chapters.
Hypothesis/objectives: To document the type, signalment associations and prevalence of cutaneous disorders in a large number of captive psittacines in an academic referral teaching hospital population.
Mandibular Prognathism Correction in a Juvenile Umbrella Cockatoo () With the Use of an Orthosis.
J Avian Med Surg
January 2025
Stahl Exotic Animal Veterinary Services, Fairfax, VA 22030, USA.
A 9-week-old male umbrella cockatoo () presented with mandibular prognathism. The rostral rhinothecal tomial length appeared subjectively shorter than the rostral gnathothecal length, which was subjectively rostrally elongated. After an initial orthosis failed, a second orthosis was designed that employed the use of an orthopedic wire anchor in the rostral end of the rhinotheca, leaving the premaxillary bone undisturbed.
View Article and Find Full Text PDFIdentification of spp. From the Gastrointestinal Tract of Pet Parrots and Subsequent Antifungal Susceptibility Profiles.
J Avian Med Surg
January 2025
Pathology and Wildlife Laboratory, Federal University of Acre, Rio Branco, Acre, 69920-900, Brazil.
Psittaciformes kept as pets can serve as reservoirs of various microorganisms, many of which have zoonotic potential, including spp. In this study, the antifungal susceptibility profiles of 16 spp. isolated from the oral and cloacal cavities of 20 pet parrots were evaluated.
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