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226449

Insight into the Functional Gross Morphology and Morphometry of the Cerebral Hemispheres and Olfactory Brain, and Sexual Dimorphism of the African Striped Ground Squirrel (Xerus erythropus)

Article

Last updated: 22 Jan 2023

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Veterinary Anatomy

Abstract

This study was undertaken to docu- ment the normal features on gross morphology and morphometry of the olfactory brain and cerebral hemispheres of both sexes of African striped ground squirrel (Xerus erythropus) and to discuss the structure-function paradigm. The study was conducted by direct observation of ten (10) adult African striped ground squirrels comprising of five males and five females. The main morphological fea- tures were: a) a large club-shaped, non-pendulous olfactory bulb projecting from the cerebral hemispheres ventro-rostrally; b) cerebral hemisphere devoid of sulci and gyri; c) a well-developed corpus callosum connecting the cerebral hemisphere; and d.) a fornix which appeared as an arch shaped commissural fiber, consisting of a crus, a body and a commissure. Morphometric data values indicated that the males had statistically significant higher body and brain weights than the females. There was no significant statistical difference be- tween sex in the mean values of the ol- factory bulbs and cerebral hemispheres weight and dimensions (length and width). A significant statis- tical difference between sexes was reported with respect to the weight of the olfactory bulb (0.46 ± 0.03g in males and 0.32 ± 0.01g in females) and cerebral hemispheres width (1.87 ± 0.03cm in males and 1.79 ± 0.01cm in females). The well-developed corpus callosum and fornix, a very crucial organ in the function of formation and consolidation of memory, and the large size of the olfactory bulb, an organ for olfactory acuity supports the use of this rodent model for precise radio-tracking and identification of location.

DOI

10.21608/jva.2022.226449

Keywords

Morphology, morphometric, Cerebral hemisphere, olfactory bulb, African striped ground squirrel

Authors

First Name

Abiyere

Last Name

Ese

MiddleName

-

Affiliation

Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria.

Email

-

City

-

Orcid

-

First Name

Umosen,

Last Name

Akpan

MiddleName

Dominic

Affiliation

Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria

Email

-

City

-

Orcid

-

First Name

Umar,

Last Name

Bello

MiddleName

Mohammed

Affiliation

Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria.

Email

-

City

-

Orcid

-

First Name

Fatima

Last Name

Oyelowo,

MiddleName

Oyenike

Affiliation

Department of Veterinary Anatomy, University of Abuja, Nigeria.

Email

-

City

-

Orcid

-

First Name

Ali,

Last Name

Nkweshi

MiddleName

Magdalene

Affiliation

Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria.

Email

-

City

-

Orcid

-

First Name

Zubairu,

Last Name

Mansur

MiddleName

-

Affiliation

Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria.

Email

-

City

-

Orcid

-

First Name

Ifukibot

Last Name

Usende

MiddleName

Levi

Affiliation

www.uniabuja.edu.ng

Email

ifukibot.usende@uniabuja.edu.ng

City

Abuja

Orcid

-

Volume

15

Article Issue

1

Related Issue

32486

Issue Date

2022-04-01

Receive Date

2021-06-15

Publish Date

2022-04-01

Page Start

17

Page End

33

Print ISSN

1687-9988

Online ISSN

2357-0504

Article File

JVA_Volume 15_Issue 1_Pages 17-33.pdf

PDF . 792.4kB

Link

https://jva.journals.ekb.eg/article_226449.html

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https://jva.journals.ekb.eg/service?article_code=226449

Order

2

Type

Original Article

Type Code

782

Publication Type

Journal

Publication Title

Journal of Veterinary Anatomy

Publication Link

https://jva.journals.ekb.eg/

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Details

Type

Article

Created At

22 Jan 2023