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17902

Histomorphogenesis of Upper Beak in Muscovy Ducks (Cairina moschata)

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Last updated: 03 Jan 2025

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Abstract

The objective of the present work was to provide information on the histology and morphometry of the upper beak of developmental ages of Muscovy Ducks (Cairina moschata) by using forty-ninehealthy post-hatch Muscovy ducks of both sexes ranging from 1-60 days-old. The upper beak was a wide spoon-shaped in all examined birds. Its length measured 19.32 mm at one day old and increased to reach 65.52 mm at 60 days old. The upper beak rostrally formed a smooth circumscribed plate like a finger nail, therefore called the nail of the upper beak, the nail of the upper beak projected rostroventrally beyond the nail of the lower beak.Scanning by electron microscopy revealed that the free tip of the upper beak contained two transversely curved rows of smalldome shaped dermal papillae at one-day-oldstage. Later, 12-14 transversely curved rows of small papillae were observed behind the dermal papillae at 15 days old, which increased to 18-20 in numbers at 60 days old.In all examined age groups, the lateral edges of the upper beak have lamellae; the ventral parts of the rostrally situated lamellae directed caudally, but the caudally situated lamellae directed vertically. The dermis of the upper beak was formed of dense connective tissue containing numerous lamellated sensory corpuscles on both sides of the lateral edges of the upper beak

DOI

10.21608/svu.2018.17902

Keywords

histology, Muscovy ducks, SEM, Upper beak

Authors

First Name

Kamal

Last Name

Abdalla

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Affiliation

Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assuit University 71526, Assuit, Egypt

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First Name

Salma

Last Name

Mohamed

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Affiliation

Department of Anatomy and Embryology, Faculty of Veterinary Medicine, South Valley University 83523, Qena, Egypt

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Orcid

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First Name

Fatma

Last Name

Madkour

MiddleName

-

Affiliation

Department of Anatomy and Embryology, Faculty of Veterinary Medicine, South Valley University 83523, Qena, Egypt

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Volume

1

Article Issue

2

Related Issue

3750

Issue Date

2018-12-01

Receive Date

2018-08-13

Publish Date

2018-12-01

Page Start

12

Page End

24

Print ISSN

2535-1826

Online ISSN

2535-1877

Article File

SVU_Volume 1_Issue 2_Pages 12-24.pdf

PDF . 1.0MB

Link

https://svu.journals.ekb.eg/article_17902.html

Detail API

https://svu.journals.ekb.eg/service?article_code=17902

Order

3

Type

Research article

Type Code

712

Publication Type

Journal

Publication Title

SVU-International Journal of Veterinary Sciences

Publication Link

https://svu.journals.ekb.eg/

MainTitle

Histomorphogenesis of Upper Beak in Muscovy Ducks (Cairina moschata)

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Article

Created At

22 Jan 2023