Characterization of fetal placental collagen in nutritionally restricted goats during the prepubertal stage

Authors

  • Keisy Pabla Gomez Área de Microscopia Electrónica. Departamento de Patología Animal Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto. Argentina
  • Mariana Rita Fiorimanti Área de Microscopía Electrónica. Departamento de Patología Animal. Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto. Argentina
  • Andrea Lorena Cristofolini Área de Microscopía Electrónica. Departamento de Patología Animal. Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto. Argentina
  • Anabella Benzoni Departamento de Clínica Animal. Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto. Argentina
  • Mauricio Luján Departamento de Clínica Animal. Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto. Argentina
  • Oscar Luján Departamento de Clínica Animal. Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto. Argentina
  • Claudio Gustavo Barbeito Facultad de Ciencias Veterinarias. Universidad Nacional de la Plata. Argentina
  • Cecilia Inés Merkis Área de Microscopía Electrónica. Departamento de Patología Animal. Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto. Argentina

DOI:

https://doi.org/10.62168/invet.v26i1.42

Keywords:

underfeeding, goats, placenta, vascularization

Abstract

The objective of the work was to identify, through optical microscopy, transmission electron microscopy and the picrosirius red technique, the presence and disposition of collagen in term fetal placentas, coming from a nutritional restriction model. Samples of placental cotyledons were taken for analysis of tissue and vascular structure using Masson's trichrome staining and for analysis of collagen morphology and arrangement using transmission electron microscopy and picrosirius red. In restricted fetal placentas, larger vessels were observed in relation to control placentas. In them, green and orange collagen fibres predominated, thin and thick respectively. In the control placental samples, orange and yellow, thick and intermediate fibres were detected, respectively. Nutritionally restricted females expressed adequacy in the
development of the placental vascular network, and revealed changes in the expression and arrangement of collagen fibres, particularly the thicker fibers, essential for maintaining placental resistance and integrity throughout gestation. These morphological differences between treatments demonstrated that female goats are capable of facing adverse environments through metabolic and physiological adaptation mechanisms.

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Published

2024-12-05

Issue

Section

Research articles

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