TRANSRECTAL ULTRASOUND TO IDENTIFY THE SEX OF CAPRINE FETUSES

Authors

  • Cristiano Rocha Aguiar Filho UFRPE
  • Leopoldo Mayer Freitas Neto UFRPE
  • Maico Henrique Barbosa Barbosa Santos UFRPE
  • Edivaldo Rosas Santos Junior UFRPE
  • Paulo Fernandes Lima UFRPE
  • Marcos Antonio Lemos Oliveira UFRPE

DOI:

https://doi.org/10.5216/cab.v11i1.3990

Keywords:

Animal reproduction

Abstract

The aim of this study was to establish the period for sexing caprine fetuses by transrectal ultrasonography through viewing the structures of the external genitalia, monitoring of the final positioning of the genital tubercle, and the day that the penis, scrotum, clitoris and nipples were seen. Fetuses of Boer (n = 36), Brownscale Alpine (n = 31) and Anglo-nubian (n = 27), breeds in the 40th-60th day of gestation, were tracked using linear transducer of 6.0 and 8.0 MHz. The final positioning of the genital tubercle occurred in the period from 47.11 ± 1.45 days in males and 45.62 ± 1.36 days in females. The visualization of structures of the external genitalia was in the period from 49.42 ± 2.20 days for scrotum; 49.37 ± 2.19 days for penis; 49.23 ± 1.75 days for nipples and 49.98 ± 2.52 days for clitoris. The migration of female genital tubercle in the fetus occurred earlier (P < 0.05) than in males, and the visualization of penis and scrotum was earlier (P < 0.05) than the nipples and clitoris, there was no difference (P > 0.05) among the structures of the same sex. In conclusion, although the sexing of caprine fetuses can be done before the 55th day of pregnancy, it is recommended to perform it only after the visualization of the structures of the external genitalia for a greater security in the sex identification.

KEY WORDS: Clitoris. nipples, penis, scrotum, sexing.

Downloads

Download data is not yet available.

Author Biography

Cristiano Rocha Aguiar Filho, UFRPE

Professor Assiciado do Departamento de Medicina Veterinaria da UFRPE

Downloads

Published

2010-04-01

How to Cite

AGUIAR FILHO, C. R.; FREITAS NETO, L. M.; SANTOS, M. H. B. B.; SANTOS JUNIOR, E. R.; LIMA, P. F.; OLIVEIRA, M. A. L. TRANSRECTAL ULTRASOUND TO IDENTIFY THE SEX OF CAPRINE FETUSES. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 11, n. 1, p. 125–130, 2010. DOI: 10.5216/cab.v11i1.3990. Disponível em: https://revistas.ufg.br/vet/article/view/3990. Acesso em: 5 sep. 2024.

Issue

Vol. 11 No. 1 (2010)

Section

Veterinary Medicine

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).