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33951

Light and scanning electron microscopy of Gasterophilus intestinalis (larvae and adult fly) infesting donkeys with emphasis on histopathology of the induced lesions.

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Last updated: 24 Dec 2024

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Abstract

Stomach horse bots, the larvae of the Gasterophilus intestinalis flies (bot flies), inhabit the stomach of equines and cause damage ranging from mild gastritis to stomach ulcers and peritonitis. The adult flies are non-parasitic and incapable of feeding, yet they survive on the nutrients left from the larval stage for approximately 10-14 days, a period long enough for them to mate and lay eggs. In this study, morphological characterization of adult fly, second and third larval stages of G. Intestinalis (Diptera: Oestridae) is illustrated using light and scanning electron microscopes (SEM). The later clarifies the structures of cephalic segment, sensory array of distal maxilla (mouth hooks), thoracic and abdominal spines and terminal abdominal segment of second instar and third instar. Morphological differences between second and third stage larvae of G. intestinalis are also discussed in this work. Adult fly antennae and antennal sensilla are studied using SEM, each antenna consisted of scape, flattened disc like pedicel, pyriform funiculus and arista. Funiculus had five types of sensilla (trichoid, basiconic, coeloconic, clavate and auriculate). Arista was composed of one or two short basal segments without sensilla and one long distal segment covered with coeloconic III sensilla. It is concluded that light and SEM should be used in conjunction for the description of G. intestinalis but SEM is considered superior in description of their ultrastructure. Finally, pathological lesions in the stomach wall of infested donkeys are described.

DOI

10.21608/evmspj.2018.33951

Keywords

Gasterophilus intestinalis, Horse bot, donkeys, Larvae, adult fly, antenna, sensilla, ulcer, Scanning electron microscope

Authors

First Name

Mona

Last Name

Abdel Rahman

MiddleName

Mohammed

Affiliation

Parasitology Departement,Faculty of Veterinary Medicine,Zagazig University

Email

mona_111_para@yahoo.com

City

Zagazig

Orcid

-

First Name

Eman

Last Name

Hassanen

MiddleName

Ahmed

Affiliation

Parasitology Departement,Faculty of Veterinary Medicine,Zagazig University

Email

emanjune@yahoo.com

City

Zagazig

Orcid

-

First Name

Manar

Last Name

Abdel Mageed

MiddleName

Ahmed

Affiliation

Pathology Departement,Faculty of Veterinary Medicine,Zagazig University

Email

mano343@yahoo.com

City

Zagazig

Orcid

-

Volume

14

Article Issue

1

Related Issue

5663

Issue Date

2018-12-01

Receive Date

2018-06-05

Publish Date

2018-12-01

Page Start

15

Page End

31

Print ISSN

1687-2274

Online ISSN

2682-3187

Article File

EVMSPJ_Volume 14_Issue 1_Pages 15-31.pdf

PDF . 511.8kB

Link

https://evmspj.journals.ekb.eg/article_33951.html

Detail API

https://evmspj.journals.ekb.eg/service?article_code=33951

Order

2

Type

Original Article

Type Code

882

Publication Type

Journal

Publication Title

Egyptian Veterinary Medical Society of Parasitology Journal (EVMSPJ)

Publication Link

https://evmspj.journals.ekb.eg/

MainTitle

Light and scanning electron microscopy of Gasterophilus intestinalis (larvae and adult fly) infesting donkeys with emphasis on histopathology of the induced lesions.

Details

Type

Article

Created At

22 Jan 2023