Results 51 to 60 of about 428 (152)

A classification of the Gliridae (Rodentia) on the basis of dental morphology

Hystrix, the Italian Journal of Mammalogy, 1995
<strong>Abstract</strong> The supra-familiar relationships of the Gliridae are discussed. The criterion used for subdividing the Gliridae is the morphology of the cheek teeth because this is the only character known for all taxa.
Remmert Daams, Hans De Bruijn
doaj   +1 more source

Prolactin Is a Strong Candidate for the Regulation of Luteal Steroidogenesis in Vizcachas (Lagostomus maximus)

International Journal of Endocrinology, Volume 2018, Issue 1, 2018., 2018
Prolactin (PRL) is essential for the maintenance of the corpora lutea and the production of progesterone (P4) during gestation of mice and rats, which makes it a key factor for their successful reproduction. Unlike these rodents and the vast majority of mammals, female vizcachas (Lagostomus maximus) have a peculiar reproductive biology characterized by
S. Proietto, S. A. Cortasa, M. C. Corso, P. I. F. Inserra, S. E. Charif, A. R. Schmidt, N. P. Di Giorgio, V. Lux-Lantos, A. D. Vitullo, V. B. Dorfman, J. Halperin, Raffaele Pezzani   +11 more
wiley   +1 more source

Resting postures in terrestrial mammalian herbivores [PDF]

, 2019
For ruminants and arboreal herbivores (sloths and colobine monkeys), an influence of digestive physiology on resting postures has been postulated that is linked to the interplay of digestive anatomy and the gravity vector.
Schiffmann, Christian; https://orcid.org/, Clauss, Marcus; https://orcid.org/, Pucora, Endre   +2 more
core   +1 more source

Androgen Receptors Expression in Pituitary of Male Viscacha in relation to Growth and Reproductive Cycle

International Journal of Endocrinology, Volume 2015, Issue 1, 2015., 2015
The aim of this work was to study the androgen receptors (AR) expression in pituitary pars distalis (PD) of male viscachas in relation to growth and reproductive cycle. AR were detected by immunocytochemistry and quantified by image analysis. Pituitary glands from fetus, immature, prepubertal, and adult viscachas during their reproductive cycle were ...
Verónica Palmira Filippa, Gabriela Judith Rosales, Albana Andrea Marina Cruceño, Fabian Heber Mohamed, Małgorzata Kotula-Balak   +4 more
wiley   +1 more source

Effects of enclosure size on activity and sleep of a hystricomorph rodent (Octodon degus) [PDF]

Bulletin of the Psychonomic Society, 1980
Eight adult and eight infant degus were continuously observed over two 24-h sessions in order to determine the effects of large vs. small enclosure size on the stability of activity and sleep cycles. Behaviors were categorized into one of five mutually exclusive categories.
Robert B. Fischer, Gary F. Meunier, P. J. O’Donoghue, D. L. Rhodes, A. M. Schafenaker   +4 more
openaire   +1 more source

Neocortical anatomy in the south american plains vizcacha, lagostomus maximus, reveals different strategies in encephalic development among hystricomorpha and myomorpha rodents [PDF]

, 2021
Depending on the presence or absence of sulci and convolutions, the brains of mammals are classified as gyrencephalic or lissencephalic. We analyzed the encephalic anatomy of the hystricomorph rodent Lagostomus maximus in comparison with other ...
Halperin, Julia, Vitullo, Alfredo Daniel, Jaime, Vanina Soledad, Proietto, Sofia, Corso, María Clara, Inserra, Pablo Ignacio Felipe, Dorfman, Verónica Berta, Cortasa, Santiago Andrés, Schmidt, Alejandro Raúl, Gariboldi, María Constanza   +9 more
core   +1 more source

Coypu insulin. Primary structure, conformation and biological properties of a hystricomorph rodent insulin [PDF]

Biochemical Journal, 1986
Insulin from a hystricomorph rodent, coypu (Myocaster coypus), was isolated and purified to near homogeneity. Like the other insulins that have been characterized in this Suborder of Rodentia, coypu insulin also exhibits a very low (3%) biological potency, relative to pig insulin, on lipogenesis in isolated rat fat-cells.
M, Bajaj, T L, Blundell, R, Horuk, J E, Pitts, S P, Wood, L K, Gowan, C, Schwabe, A, Wollmer, J, Gliemann, S, Gammeltoft   +9 more
openaire   +2 more sources

Genetic Identification of Parasitic Giardia enterica in Three Wild Rodent Species from a Zoological Institution: First Host Records in Brazilian Porcupine (Coendou prehensilis) and Naked Mole Rat (Heterocephalus glaber), and Detection in Crested Porcupine (Hystrix cristata)

Journal of Zoological and Botanical Gardens
Flagellates of the genus Giardia are intestinal parasites with a broad host range. Several Giardia duodenalis variants (assemblages) recently elevated to species rank—G. duodenalis (assemblage A1), G.
Lorena Esteban-Sánchez, Marta Mateo-Barrientos, Manuel de la Riva-Fraga, Lino Pérez de Quadros, Juan José García Rodríguez, Francisco Ponce-Gordo   +5 more
doaj   +1 more source

Gastric dilatation and volvulus in a capybara (Hydrochoerus hydrochaeris, Linnaeus, 1766)

Veterinary Record Case Reports, Volume 13, Issue 3, September 2025.
Abstract Gastric torsion has been described in several species, but this is the first documented case in a capybara. An entire, 6‐year‐old, female capybara was found dead in the indoor enclosure of the zoo in the morning. Pathological examinations revealed a large, bloated stomach upon opening the abdominal cavity.
Anna Linda Nógrádi, Péter Kertész, János Gál, Árisz Ziszisz   +3 more
wiley   +1 more source

Actividad ovárica del tepezcuintle Agouti paca (Rodentia: Agoutidae) en cautiverio

Revista de Biología Tropical, 2006
Se caracterizó la actividad ovárica de A. paca por medio de perfiles hormonales y estructuras ováricas. Se muestrearon ocho hembras (siete adultas y una juvenil) en el criadero de la Facultad de Medicina Veterinaria y Zootecnia en el estado de Yucatán ...
Rubén C Montes Pérez, Elsy A Cabrera Baz   +1 more
doaj