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37155

Preliminary Investigations on the Harderian Gland of the African Giant Rat (Cricetomys gambianus, Waterhouse, 1840)

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Last updated: 04 Jan 2025

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Abstract

Abstract Harderian gland (HG) is an orbital gland found in almost all vertebrae. Its function includes protection and lubri- cation of the corneal, site of immune responses, source of pheromones and lipid thermoregulation and also mela- tonin secretion and function. We de- scribed for the first time the HG of Af- rican giant rat (AGR), a nocturnal ro- dent belonging to the family Muridaeand order Rodentia and typical to the arid and temperate areas of Africa. Ten adult African giant rats weighing between 850g-1200g of both sexes were used. They were sacrificed and the gland harvested for gross observa- tions and sections were taken, fixed for routine histological examination. Grossly, the AGR HG appeared lobu- lated and lobated. It weighs 1±0.08g with length and width of 2.9±0.2cm and 1.1±0.7cm respectively. Histologi- cally, the AGR HG showed extensive pleomorphism. The epithelium is sim- ple columnar with rounded to oval nu- cleus. Interestingly, we showed that the HG of the African giant rat is binu- cleated. While the mean epithelial height is 129.98 ± 5.36μm, the mean luminal diameter and mean tubular diameter are 211.43 ± 13.98μm and 479.04 ± 17.03μm respectively. The mean nuclear diameters of the small and large sized nucleus are 24.97 ± 0.68μm and 17.78 ± 0.62μm. This study reports baseline research data on the anatomy of AGR's HG and will have usefulness in theoretical and ex- perimental studies of its vision, helping in domestication of this rodent.

DOI

10.21608/jva.2017.37155

Keywords

Keywords African giant rat, binucleated, domes- tication, Harderian gland, small nucle- us

Authors

First Name

Ifukibot

Last Name

Usende

MiddleName

-

Affiliation

Department of Veterinary Anatomy, University of Abuja, Federal Capital Territory, Nigeria

Email

-

City

Abuja,Nigeria

Orcid

-

First Name

Fatima

Last Name

Oyelowo

MiddleName

-

Affiliation

Department of Veterinary Anatomy, University of Abuja, Federal Capital Territory, Nigeria

Email

-

City

Abuja, Nigeria

Orcid

-

First Name

Victor

Last Name

Erondu

MiddleName

-

Affiliation

Department of Veterinary Physiology, University of Abuja, Federal Capital Terri- tory, Nigeria

Email

-

City

Abuja,Nigeria

Orcid

-

First Name

Ekeolu

Last Name

Kazeem

MiddleName

Oyetunde

Affiliation

Department of Veterinary Anatomy, University of Benin, Nigeria

Email

-

City

Benin, Nigeria

Orcid

-

First Name

Agbonu

Last Name

Adikpe

MiddleName

-

Affiliation

Department of Veterinary Physiology, University of Abuja, Federal Capital Terri- tory, Nigeria

Email

-

City

Abuja,Nigeria

Orcid

-

First Name

Abdurrahman

Last Name

Ghaji

MiddleName

-

Affiliation

Department of Veterinary Anatomy, University of Abuja, Federal Capital Territory, Nigeria

Email

-

City

Abuja,Nigeria

Orcid

-

First Name

James

Last Name

Olopade

MiddleName

-

Affiliation

Department of Veterinary Anatomy, University of Ibadan, Nigeria

Email

-

City

Ibadan, Nigeria

Orcid

-

Volume

10

Article Issue

1

Related Issue

6006

Issue Date

2017-06-01

Receive Date

2017-12-31

Publish Date

2017-06-01

Page Start

37

Page End

47

Print ISSN

1687-9988

Online ISSN

2357-0504

Link

https://jva.journals.ekb.eg/article_37155.html

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https://jva.journals.ekb.eg/service?article_code=37155

Order

4

Type

Original Article

Type Code

782

Publication Type

Journal

Publication Title

Journal of Veterinary Anatomy

Publication Link

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

MainTitle

Preliminary Investigations on the Harderian Gland of the African Giant Rat (Cricetomys gambianus, Waterhouse, 1840)

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Article

Created At

22 Jan 2023