Sloths (Bradypus variegatus) as a polygastric mammal.

Xenarthra digestive anatomy digestive histology stomach

Journal

Microscopy research and technique
ISSN: 1097-0029
Titre abrégé: Microsc Res Tech
Pays: United States
ID NLM: 9203012

Informations de publication

Date de publication:
Jan 2021
Historique:
received: 08 05 2020
revised: 04 07 2020
accepted: 20 07 2020
pubmed: 12 9 2020
medline: 19 8 2021
entrez: 11 9 2020
Statut: ppublish

Résumé

Fermentative herbivorous animals have peculiar conformations of the digestive system. It is known that B. variegatus obtained the capacity for evolutionary adaptation, due to their ecology and eating habits. However, despite the literature on feeding management for this species, there is a lack of published information regarding its gastric morphology, and such information would support a better understanding on the diet and digestion of these individuals. We found seven gastric compartments, which histologically revealed three distinct patterns: an aglandular keratinized fraction (mechanical stomach) and two glandular fractions, one a mucus secretor and the other one composed of acid secreting cells (chemical stomach). With these evidences we understand that these individuals have gastric resemblance to ruminants, with some inherent peculiarities of this species, including the transit of the bolus.

Identifiants

pubmed: 32914926
doi: 10.1002/jemt.23568
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

79-88

Informations de copyright

© 2020 Wiley Periodicals LLC.

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Auteurs

Ellen Y E Mesquita (EYE)

Federal Rural University of Amazonia - UFRA Laboratory of Animal Morphology Research, Institute of Animal Health and Production - ISPA, Belém, PA, Brazil.
University of Amazonia, Belém, PA, Brazil.

Paola C Soares (PC)

Federal Rural University of Amazonia - UFRA Laboratory of Animal Morphology Research, Institute of Animal Health and Production - ISPA, Belém, PA, Brazil.

Luise R Mello (LR)

Federal Rural University of Amazonia - UFRA Laboratory of Animal Morphology Research, Institute of Animal Health and Production - ISPA, Belém, PA, Brazil.

Elisa C B Freire (ECB)

Federal Rural University of Amazonia - UFRA Laboratory of Animal Morphology Research, Institute of Animal Health and Production - ISPA, Belém, PA, Brazil.

Ana R Lima (AR)

Federal Rural University of Amazonia - UFRA Laboratory of Animal Morphology Research, Institute of Animal Health and Production - ISPA, Belém, PA, Brazil.

Elane G Giese (EG)

Federal Rural University of Amazonia - UFRA Laboratory of Animal Morphology Research, Institute of Animal Health and Production - ISPA, Belém, PA, Brazil.
Federal Rural University of Amazonia - UFRA Laboratory of Animal Histology and Embryology, Institute of Animal Health and Production - ISPA, Belém, PA, Brazil.

Érika Branco (É)

Federal Rural University of Amazonia - UFRA Laboratory of Animal Morphology Research, Institute of Animal Health and Production - ISPA, Belém, PA, Brazil.

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