Comparative morphometry of the brainstem of the male and female Helmeted Guinea Fowl (Numida meleagris)

Adam, Mohammed; Onyeanusi, B. I.; Hambolu, J. O.; Ambali, Suleiman Folorunsho; Ibe, C. S.

doi:10.1515/ats-2018-0013

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…This was found to be different and specific to this species as bony protuberances rarely occurred on top of the skull and are mainly restricted to the beak. This process which is a projection from the frontal bone is popularly called the ‘helmet’ (Adam et al, 2018) which has shown in this study to be made entirely of the frontal bone. This process did not form part of the cranial cavity, meaning that the brain does not extend into it since it is not hollow.…”

Section: Discussionmentioning

confidence: 94%

Axial skeletal morphological studies on the helmeted Guinea fowl (Numida meleagridis)

Onwuama

Ojodare

Kigir

et al. 2022

Anat Histol Embryol

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This study on the morphological features of bones of the helmeted guinea fowl (Numidia meleagridis) specifically the axial skeleton was conducted for documentation and valuable information on differences when compared with other species of the same order. Ten (10) Helmeted guinea fowls (5 females and 5 males) with an average weight of 3.0 kg were euthanized via jugular vein severance with bone preparation achieved via the use of insect larvae. The skull presented an elongated structure made up of paired and unpaired flat, short and long bones with distinctive features. The frontal bone projected caudodorsally to form a horn like structure, the frontal process at its middle while the vomer was absent. The cervical vertebrae were 14 in number starting from the first (Atlas) to the last vertebra without a rib. Specific distinguishing features were evident in the Atlas, Axis, 3rd to 5th, 6th to 11th and 12th to 14th cervical vertebrae. The thoracic vertebrae presented 7 bones comprising the 1st single free vertebra; notarium (fused 2nd to 5th), 6th single free vertebra and the last 7th vertebrae that fused with the synsacrum which was an ankylosis of the lumbar and sacral vertebrae. The caudal vertebrae were 7 with the last; the pygostyle being distinct in appearance. The ribs were 7 pairs, of which the first two were asternal while the remaining five were sternal and consisted of proximal vertebral and distal sternal portions. The curved uncinate process articulated to the caudal border of the 2nd and vertebral portions of the 3rd to 5th ribs. The guinea fowl proved to be a carinate by presenting a single sternum with dorsolateral processes and a ventral carina. In conclusion, this study revealed that except for the skull, the axial skeleton of the Helmeted Guinea fowl presented similarities to that of the domestic fowl (Gallus domesticus).

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Section: Discussionmentioning

confidence: 94%

Axial skeletal morphological studies on the helmeted Guinea fowl (Numida meleagridis)

Onwuama

Ojodare

Kigir

et al. 2022

Anat Histol Embryol

View full text Add to dashboard Cite

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“…the digestive system [14,31], reproductive system [2,11], respiratory system [5,15], integuments [29,41,45], nervous system [3], muscular system [9] and forelimb skeleton [1]. Generally, studies on forelimb anatomy of avian species abound, probably due to the relevance of the forelimb to flight.…”

Section: Introductionmentioning

confidence: 99%

Hindlimb Skeletal Morphology of the Helmeted Guinea Fowl (Numida meleagridis)

et al. 2023

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The Guinea fowl (Numida meleagridis) is a semi-domestic bird whose commercial popularity is on the increase. The gross anatomy of the hindlimbs of 8 helmeted Guinea fowls of equal sexes were studied. The pubic shafts were free, thus they did not fuse ventrally to form a symphysis. The ilium had a quadrilateral and roughly triangular pre and post acetabular wings, respectively. A conspicuous renal fossa was observed in the post acetabular wing. An incomplete concentric obturator foramen, lacking a caudal margin, was formed by the ventral border of the ischium and dorsal border of the cranial pubic shaft, while a prominent ischiopubic fissure was formed by the same bones, caudally. The incomplete concentric nature of the obturator foramen created a common space between it and the ischiopubic fissure. The femoral major trochanter was more proximal than the head, while the minor tro-chanter and the head were on the same horizontal level. The femur lacked a visible pneumatic foramen. The tibiotarsus had a prominent cranial cnemial crest. The fibular spine terminated at the tibia mid-shaft, leaving one interosseous space. An intertarsal sesamoid bone was identified, indicative of an adult skeleton. Crests and channels depicted the hypotarsus. Vascular foramen was identified in the distal extremity of the tibiotarsus. Digit I was oriented to the planter direction. These results, and others, were compared with those of other birds in the available literature, and some morpho-functional paradigm of the Guinea fowl hindlimb skeleton was established.

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Comparative morphometry of the brainstem of the male and female Helmeted Guinea Fowl (Numida meleagris)

Cited by 2 publications

References 16 publications

Axial skeletal morphological studies on the helmeted Guinea fowl (Numida meleagridis)

Axial skeletal morphological studies on the helmeted Guinea fowl (Numida meleagridis)

Hindlimb Skeletal Morphology of the Helmeted Guinea Fowl (Numida meleagridis)

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