Results 161 to 170 of about 2,891 (183)

Responses to conspecifics' urine by the degu (Octodon degus)

Physiology & Behavior, 1985
In nature the degu has been observed to deposit and to investigate scents. This study employed a captive group of these animals to investigate their responses to conspecific urinary marks in a neutral arena. Both sex classes served as subjects. They were presented with urine obtained from males, from females and a saline control. The females were found
R B, Fischer, G F, Meunier
openaire   +2 more sources

Nutrition and Behavior of Degus (Octodon degus)

Veterinary Clinics of North America: Exotic Animal Practice, 2009
Octodon degus are herbivorous rodents that are adapted anatomically and behaviorally to utilize a fibrous diet with moderate-to-low levels of nonstructural carbohydrate. Captive degus should consume foods containing nutrients comparable to those consumed by free-ranging animals. The species is highly social, demonstrating a broad array of communication
openaire   +2 more sources

CHORDOMA OF THE TAIL IN A DEGU (OCTODON DEGUS)

Journal of Exotic Pet Medicine, 2018
Abstract A 6-year-old female degu (Octodon degus) in good body condition was presented with a mass at the base of the tail. Following presentation and the owners’ approval, the tail of the degu was surgically amputated. The mass was submitted for pathological evaluation following the surgical procedure.
Hirotaka Kondo, Kazuya Hara, Akihiro Sukegawa, Hisashi Shibuya   +3 more
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Atherosclerosis in Octodon degus (degu) as a model for human disease

Atherosclerosis, 2010
Animal models of atherosclerosis are essential to elucidate disease mechanisms and develop new therapies. Each model features advantages and disadvantages in exemplifying the pathophysiology of human atherosclerosis. Diet-induced development of atherosclerosis in Octodon degus (degu) was examined to demonstrate the potential of the degu as a model of ...
Reynold, Homan, Jeffrey C, Hanselman, Sandra, Bak-Mueller, Michelle, Washburn, Patrick, Lester, Heather E, Jensen, Stephen L, Pinkosky, Christine, Castle, Bruce, Taylor   +8 more
openaire   +2 more sources

Ageing and testicular function in Octodon degus

Andrologia, 2009
The present study analyses cell loss and proliferation which account for the decrease in the number of germ cell populations in the senile male Octodon degus. This is a good model to study ageing in wild animals, since it has recently been incorporated as a laboratory animal but still has a high degree of genetic heterogeneity, thus representing a ...
E B, Obregón, O, Ramirez
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Common Dental Disorders of the Degu (Octodon Degus)

Journal of Veterinary Dentistry, 2012
Dental disease is prevalent in the captive degu (Octodon degus), yet little has been documented on the variety of disorders in this species. In this internet-based study, dental cases presented over a 7-year period were collated, analyzed, and grouped.
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Rhythm chronotypes in a diurnal rodent, Octodon degus

American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1997
Interindividual variations in entrained human circadian rhythms and their relationship to differences in ease of adjustment to phase shifts have been well described. Humans classified as morning type (MT) display phase-advanced temperature minimum, onset of daily activity, and onset of sleep, whereas evening type (ET) individuals demonstrate the ...
S E, Labyak, T M, Lee, N, Goel
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Bronchioloalveolar Carcinoma with Renal and Hepatic Metastases in a Degu (Octodon degus)

Journal of Wildlife Diseases, 1990
A primary bronchioloalveolar carcinoma with renal and hepatic metastases was diagnosed in a mature male degu (Octodon degus) that was found dead in a zoological exhibit (Buffalo Zoological Gardens, Buffalo, New York, USA). Grossly, a discrete 0.5 cm diameter nodule was seen in the lung.
W I, Anderson, H, Steinberg, J M, King
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Visual adaptations in a diurnal rodent, Octodon degus

Journal of Comparative Physiology A, 2003
The degu (Octodon degus) is a diurnal rodent, native to Chile. Basic features of vision and visual organization in this species were examined in a series of anatomical, electrophysiological and behavioral experiments. The lens of the degu eye selectively absorbs short-wavelength light and shows a progressive increase in optical density as a function of
G H, Jacobs, J B, Calderone, J A, Fenwick, K, Krogh, G A, Williams   +4 more
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Communal nesting and discriminative nursing by captive degus, Octodon degus

Animal Behaviour, 2009
When two or more females rear their young in a common nest or burrow (communal nesting), mothers may be challenged to direct care to their own offspring. In a laboratory study on degus, Octodon degus, a communally nesting South American caviomorph rodent, we used a radionuclide (phorphorus-32) to track milk transfer from mothers to their young in nests
Stephanie A. Jesseau, Warren G. Holmes, Theresa M. Lee   +2 more
openaire   +1 more source