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Full text release has been delayed at the author's request until January 01, 2025

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Characterizing bone growth and pneumaticity development in birds: Insights from the turkey (Meleagris sp.)

Sze, Nicholas Dawson
http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1683215933987545

Abstract Details

2023, Bachelor of Science (BS), Ohio University, Biological Sciences.
Properties of the avian skeleton system such as histological organization and cross-sectional geometry have been used to make inferences about organismal biology, locomotion, ecology, and evolution. However, we lack a fundamental organization about how bone naturally develops. This study is the first of its kind, examining developments in vascular orientation, shape, and post-cranial pneumatization in a controlled turkey model. The use of such a model allows for the observation of natural bone development in the absence of ecological or locomotive factors. The humerus and ulna were examined using both micro-CT and a histological workflow. Our results indicate certain periods (weeks 5-7) characterized by notable increase in length and cross-sectional shape measured used to infer resistance to mechanical loading. There is also variation in cortical area (thickness) that may be due to redistribution of cortical bone around the neutral axis. Circumferential canals appear at the border of developing bone and later in the growth series, suggesting it is a normal part of bone development. However, regional differences in histological organization paint a complicated picture between canal orientation and factors such as growth or locomotion. Post-cranial pneumatization of the midshaft appears at week 4 in humeri and air-like space is found in the ulna, which has previously been interpreted as a non-pneumatic bone. This project lays a foundation for further studies into bone as a developing system, helping to understand how bone’s appearance may be related to its environment, ecology, growth, and locomotion.
Patrick M. O'Connor (Advisor)
81 p.
Anatomy and Physiology; Animal Sciences; Biology; Biomechanics; Biomedical Research; Developmental Biology; Evolution and Development; Histology; Morphology
turkey; histology; cross-sectional geometry; micro-CT; forelimb; pneumaticity; bone; BoneJ; biomechanics; bird; vascular canals; growth; domestic; Galliformes; polar section modulus; second moment of inertia; shape

Recommended Citations

Citations

  • Sze, N. D. (2023). Characterizing bone growth and pneumaticity development in birds: Insights from the turkey (Meleagris sp.) [Undergraduate thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1683215933987545

    APA Style (7th edition)

  • Sze, Nicholas. Characterizing bone growth and pneumaticity development in birds: Insights from the turkey (Meleagris sp.). 2023. Ohio University, Undergraduate thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1683215933987545.

    MLA Style (8th edition)

  • Sze, Nicholas. "Characterizing bone growth and pneumaticity development in birds: Insights from the turkey (Meleagris sp.)." Undergraduate thesis, Ohio University, 2023. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1683215933987545

    Chicago Manual of Style (17th edition)

ouhonors1683215933987545
© 2023, all rights reserved.
This open access ETD is published by Ohio University Honors Tutorial College and OhioLINK.