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372131

MICROBIAL CONTAMINATION AND OTHER HATCHING PROBLEMS CAUSING DEAD -IN SHELL IN OSTRICH (STRUTHIO CAMELUS) EGGS DURING ARTIFICIAL INCUBATION

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Last updated: 03 Jan 2025

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Tags

Bacteriology and bacterial diseases

Abstract

Complete data of 451 ostrich eggs from commer- cial incubators and hatcheries in Egypt were col- lected. Hatchability rate was only 45 (10%). Fer- tile and infertile eggs were 266 and 185 ( 59% and 41%) respectively. Fertility varied between eggs collected from different farms. Embryonic mortalities were higher at the start and end of in- cubation period (42 days). Most of these mortali- ties took place at the late stage of incubation (10- 14 days) and were found related to percentages of water loss which cause severe oedema and later mass deaths. In fertile eggs (266); broken egg shell, malposition, severe oedema and microbial contamination were the predominant causes of chick mortalities reported with 19, 72, 52 and 78 (7,1%. 27%, 19.5% and 29.3%) respectively. Malpositioning was related to incorrect egg set- ting or inadequate turning and oedema was found to be correlated with egg size and the amount of Water lost from incubated eggs of 266 fertile eggs, 73 showed bacterial (27.4%) and 5 fungal contaminations (1.9%). Salmonella enteritidis, S. typhimurium, S. typhi and S. para- typhi, E. coli, Staphylococcus aureus and Pseudo- monas aeruginosa were the main bacteria isolated from contaminated and poorly handled ostrich eggs; whereas, Aspergillus fumigatus and Mucor species were the main fungal (1.9%) species isolated.In conclusion, application of hygienic measurements, adequate egg turning, sufficient incubator humidity, periodic weighing of eggs for water loss in the incubators and hatcheries and proper egg handling are recommended in ostrich farms to reduce bacterial contamination and obtain significant and successful hatching results.

DOI

10.21608/vmjg.2001.372131

Authors

First Name

A

Last Name

KHAFAGY

MiddleName

-

Affiliation

Departments of Microbiology Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt

Email

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City

-

Orcid

-

First Name

A

Last Name

KAMEL

MiddleName

-

Affiliation

Departments of Wildlife Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt

Email

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City

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Orcid

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Volume

49

Article Issue

3

Related Issue

49662

Issue Date

2001-07-01

Receive Date

2024-08-06

Publish Date

2001-07-01

Page Start

401

Page End

411

Print ISSN

1110-1423

Online ISSN

2537-1045

Article File

VMJG_Volume 49_Issue 3_Pages 401-411.pdf

PDF . 4.1MB

Link

https://vmjg.journals.ekb.eg/article_372131.html

Detail API

https://vmjg.journals.ekb.eg/service?article_code=372131

Order

372,131

Type

Original Article

Type Code

544

Publication Type

Journal

Publication Title

Veterinary Medical Journal (Giza)

Publication Link

https://vmjg.journals.ekb.eg/

MainTitle

MICROBIAL CONTAMINATION AND OTHER HATCHING PROBLEMS CAUSING DEAD -IN SHELL IN OSTRICH (STRUTHIO CAMELUS) EGGS DURING ARTIFICIAL INCUBATION

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Article

Created At

23 Dec 2024