Comparative morphometry of the brainstem of the male and female Helmeted Guinea Fowl (Numida meleagris)
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Date
2018-10
Authors
Adam, Mohammed
Onyeanusi, Barth Izuchukwu
Hambolu, Joseph Olusegun
Ambali, Suleiman Folorunsho
Ibe, Chikera Samuel
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Journal ISSN
Volume Title
Publisher
Faculty of Regional dept and Int. Studies, Mendel University Brno
Abstract
The aim of this study was to obtain base‑line morphometric data on the whole brain and brainstem in the adult
male and female helmeted guinea fowl (Numida meleagris), and compare the result in the two sexes. Brain samples of
seventy adult helmeted guinea fowls, comprising 35 males and 35 females, intended for slaughter, were extracted for
the study. The body weights for both male and female helmeted guinea fowls were 1247 ± 5.51 g and 1230 ± 4.85 g,
respectively. The mean brain weights were 3.39 ± 0.02 g and 3.47 ± 0.18 g for male and female, respectively, and
the difference in the values was not significant (P > 0.05). The lengths of the brain and medulla oblongata, as well
as the lengths of the midbrain and mesencephalic tectum, did not differ between the two sexes. Neither the mean
weights nor lengths of the pons differed between the two sexes. In conclusion, the results of this study showed
that there was no sex dimorphism observed in the morphometry of the midbrain, medulla oblongata and pons in
the helmeted guinea fowl.
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Keywords
galliform birds, medulla oblongata, mesencephalic tectum, pons.