PRENATAL AND POSTNATAL DEVELOPMENT AND COMPARATIVE ANATOMY OF THE MANDIBLE OF THREE BREEDS OF SHEEP: A GROSS STUDY

Autores

  • Shaibu Mohammed Atabo Department of Veterinary, Bayero University Kano, Nigeria https://orcid.org/0000-0002-9811-4457
  • Abubakar Abubakar Umar Department of Veterinary, Usmanu Danfodiyo University, Sokoto, Nigeria
  • Sani Abdullahi Shehu Department of Veterinary, Bayero University Kano, Nigeria
  • Adamu Abdul Abubakar Department of Veterinary Surgery and Radiology, Usmanu Danfodiyo University, Sokoto, Nigeria

DOI:

https://doi.org/10.5380/avs.v27i2.84187

Palavras-chave:

Mandible, Foramina, Uda, Balami, Yankasa

Resumo

This study aims to evaluate and compare the development of the mandible and gross anatomy in three breeds of sheep. A total of 180 and 720 prenatal and postnatal samples were used respectively, their skulls were macerated and mandibles detached. In prenatal life, the mental and mandibular foramina were rudimentary in the late 1st trimester and 2nd trimester and developed in the 3rd trimester. The alveolus and mandibular canal differentiated in the 3rd trimesters respectively. In the postnatal life, the ventral border was convexed in Uda but flat in Balami and Yankasa breeds. The angular part of the ramus was thin in Uda and thick in Balami and Yankasa. The mandibular tuberosity was absent in Balami and Yankasa but present in Uda. There was a small accessory foramen caudal to the mental foramen just below the first premolar teeth in the Uda and Yankasa. The labial surface was wide and rough in Balami and Uda but smooth in Yankasa. The medial surface was flat in the young postnatal and convexed in the adult postnatal. It was brought to a conclusion that the mandible in the Nigerian breeds undergoes various morphological changes from prenatal and postnatal ages with peculiar differentiating features.

Biografia do Autor

Shaibu Mohammed Atabo, Department of Veterinary, Bayero University Kano, Nigeria

Faculty of Veterinary Medicine, Department of Veterinary Anatomy. Rank: Lecturer I

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Publicado

2022-06-22

Como Citar

Atabo, S. M., Umar, A. A., Shehu, S. A., & Abubakar, A. A. (2022). PRENATAL AND POSTNATAL DEVELOPMENT AND COMPARATIVE ANATOMY OF THE MANDIBLE OF THREE BREEDS OF SHEEP: A GROSS STUDY. Archives of Veterinary Science, 27(2). https://doi.org/10.5380/avs.v27i2.84187

Edição

v. 27 n. 2 (2022)

Seção

Neurologia Veterinária

Licença

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