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Anatomic research on the goat placenta by neoprene injection

The morphologic aspects of the goat placenta were the subjects of our research. Thirty adult, mixed-breed goats, from the State of Piauí (Brazil), were studied, and the models obtained by Neoprene "650" latex injection were analyzed. We found that in 17 cases (56.66%) single gestation occu...

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Bibliographic Details
Published in:Brazilian journal of veterinary research and animal science 1999-01, Vol.36 (1), p.9-14
Main Authors: Willams Costa Neves, Maria Angélica Miglino, Mônica Arrivabene, Miguel Ferreira Cavalcante Filho, Francisco Solano Feitosa Jr
Format: Article
Language:Portuguese
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Summary:The morphologic aspects of the goat placenta were the subjects of our research. Thirty adult, mixed-breed goats, from the State of Piauí (Brazil), were studied, and the models obtained by Neoprene "650" latex injection were analyzed. We found that in 17 cases (56.66%) single gestation occurred, while in 13 animals (43.33%) gemellary gestations were present. The diameter of the hilus placental area ranged from 1 to 6 centimeters. It was located in the center of the placenta, an area characterized by the presence of the umbilical pedicle. Concerning the cotyledon shape, the great majority was ovoid, although circled, elliptical, pyriform and reniform shapes were also found. The total number of cotyledons in all thirty pregnancies was 3.117, which shows an average of 104 cotyledons per gestation. In 16 cases of single gestation (94.11%), the pregnant uterine horn had a greater number of cotyledons than the contralateral one. In 7 animals with gemellary gestation (53.84%), the left uterine horn had a greater number of cotyledons than the right uterine one. Estudamos a placenta quanto aos seus aspectos morfológicos em 30 caprinos sem raça definida, adultos oriundos do Estado do Piauí, mediante a análise de esquemas de modelos obtidos pela injeção de látex Neoprene "650". Obtivemos 17 casos, ou seja, 56,66% de gestações únicas e 13 casos, ou seja, 43,33% de gestações gemelares. A área do hilo placentário varia de 1 a 6 cm de diâmetro e está situada no centro da placenta, região caracterizada pela apresentação do pedículo umbilical. O formato dos cotilédones varia de ovóide, circular, elíptica, piriforme ou reniforme, sendo que a maioria mostra-se ovóide. O número total de cotilédones em 30 gestações é igual a 3.117, sendo a média 104 cotilédones por gestação. Nas gestações únicas em 16 casos (94,11%), o corno uterino gestante apresenta maior número de cotilédones do que o corno uterino não-gestante. Nas gestações gemelares, em 7 observações (53,84%), o corno uterino esquerdo mostra maior número de cotilédones do que o corno uterino direito.
ISSN:1413-9596
1678-4456