Korean Journal of Veterinary Research 1995;35(1):19-28.
The histological study on ossification of the body of the piglet axis
Dong-choon Ahn, In-shik Kim, Hong-hyun Yang, Young-ki Paik
Department of Veterinary Anatomy, College of Veterinary Medicine, Chontbuk National University
자돈 축추골 몸통의 골화에 관한 조직학적 연구
안동춘, 김인식, 양홍현, 백영기
전북대학교 수의과대학 수의해부학교실
The histological and histochemical study of the axis body of piglet was performed in order to clarify the ossification process. These experimental animals collected from after birth to 52 days were used for this study. The results were summarized as follows; 1. The epiphysis, the intercentrum 2 and the centrum of proatlas were appeared in the axis body and dens of piglet after birth. 2. In 39 days of age piglet, the ossification of the intercentrum 2 was first observed but the epiphysis was already initiated. The centrum of proatlas was observed cranioventral part of the dens of the 52 days piglet axis. 3. The notochordal remnants revealed distinctively in the part between the centrum 1 and the centrum2, in the apical cartilaginous tissue of dens and in the caudal cartilaginous part of body of axis. 4. Intramembranous ossification occurred in the adjacent area of perichondrium of centrum 2. These ossified trabeculae show the woven bone configuration.
Key Words: piglet, axis, postnatal ossification, ossification center, histological study

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