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International Journal of Primatology· 2026Q1

Late-gestation ultrasonography without chemical restraint in a captive white-bellied spider monkey (Ateles belzebuth)

Dinah Barbara Pathek, Sheyla Farhayldes Souza Domingues, Luciana Ferreira Lobo Souza Vilanova, Rebeca Mafra Lima Mendes et al.

Short summary

Positive reinforcement enabled rapid (<3 min), low-stress fetal ultrasonography in a captive white-bellied spider monkey without anesthesia.

AI-generated from the title and abstract; the full text is not read.

Key points

  • Late-gestation ultrasonography was performed on a captive white-bellied spider monkey without anesthesia.
  • Positive reinforcement was used to achieve a rapid (<3 min) and low-stress procedure.
  • Fetal viability and biometric parameters (heart, chest, abdomen, head) were documented.
  • The non-invasive technique supports conservation breeding of endangered primates.

AI-generated from the title and abstract; the full text is not read.

Abstract

Summary Late-gestation ultrasonography was performed without anesthesia in captive Ateles belzebuth. Positive reinforcement enabled rapid, low-stress fetal assessment (<3 min). Fetal viability and biometric parameters (heart, chest, abdomen and head) were documented. Noninvasive ultrasonography supports conservation breeding of endangered primates.

The authors' abstract, as published at the source. International Journal of Primatology, 2026 · DOI ↗

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