ULTRASSONOGRAFIA TRANSRETAL PARA IDENTIFICAR O SEXO FETAL DE CAPRINOS
| Autor: | Maico Henrique Barbosa Barbosa Santos, Marcos Antonio Lemos Oliveira, Paulo Fernandes de Lima, Leopoldo Mayer Freitas Neto, Edivaldo Rosas dos Santos Junior, Cristiano Rocha Aguiar Filho |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Ciência Animal Brasileira. 11 |
| ISSN: | 1809-6891 1518-2797 |
| DOI: | 10.5216/cab.v11i1.3990 |
| Popis: | 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) 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. |
| Databáze: | OpenAIRE |
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