Monitoring of seasonal parasitic and mycotic problems affecting cultured oreochomis niloticus under semi-intensive system
Other Title(s)
رصد المشاكل الطفيلية و الفطرية في مزارع البلطى النيلى شبه المكثف
Joint Authors
Marzuk, Muhammad Sayyid
Muhammad, Muhammad Mustafa
al-Hadi, Sofia
Ahmad, Muhammad Abd al-Aziz
Source
Assiut Veterinary Medical Journal
Issue
Vol. 56, Issue 125 (30 Apr. 2010), pp.31-55, 25 p.
Publisher
Assiut University Faculty of Veterinary Medicine
Publication Date
2010-04-30
Country of Publication
Egypt
No. of Pages
25
Main Subjects
Topics
Abstract EN
The study was carried out on 1000 Tilapia (O.
niloticus) collected from private and governmental semi intensive earth pond (Central Laboratory for Aquatic Research laboratory (Abbassa) in Sharkia Province, through the seasons of the year 2008.
The clinical signs and post mortem lesions of diseased fish were recorded.
Results of the study revealed that (721) and (80) fish were found to be infected with different types of parasites and fungal infection respectively.
The isolation and identification of parasites in infected fish including the following, 1-Protozoa: (Trichodina sp.
in a percentage (42%), of total parasitic disease in fish examined.
The research showed that Trichodina sp.
represented the highest rate of infection was observed in summer season (64.8%).
2-Trematodes: a-Monogenia (Cichlidogyrus liberianus and Cichlidogyrus arthracanthus (28%), the highest rate of infection was observed in spring season (38%).
b-Digenean encysted metacercaria (Centrocestes (5.9%), Clinostomum (5.2%), Euclinostomum (4.9%)),and the highest rate of infection were observed in spring (6.4%), winter (7.2%) and spring (8.8%) respectively 3-Nematodes: a-Acanthocephala (7.5%) and the highest rate of infection was observed in autumn season (8.8%).
b- Contracaecum (3%) and the highest rate of infection was observed in autumn season (4.8%).
4-Crustacea (Ergasilus (4.9%) and the highest rate of infection was observed in spring season (8.8%).
The isolation and identification of mycotic diseases in infected fish revealed that the Seasonal prevalence of saprolegniosis showed that the highest rat L.:: ^ jjg concluded the wide spread of parasitic diseases and to lesser tj.e mycotic one in cultured O.
niloticus under semi intensive .I? f- m in Sharkia province which may be due to the improper 1 iiiii^' sement practice in such farms.
The results revealed that late spring ^ critical times for the occurrence of parasitic diseases, At •-^sattie time the rigorousness of saprolegnisis on O.
niloticus ^tcially in winter season which is associated with severe mortalities *high economic losses must be considered.
So the application of the jUl system of management including good quality water, proper fefftrition and using of immunstimulant will decrease the negative Ifpacts of such diseases in their critical times of occurrence
American Psychological Association (APA)
Marzuk, Muhammad Sayyid& Ahmad, Muhammad Abd al-Aziz& Muhammad, Muhammad Mustafa& al-Hadi, Sofia. 2010. Monitoring of seasonal parasitic and mycotic problems affecting cultured oreochomis niloticus under semi-intensive system. Assiut Veterinary Medical Journal،Vol. 56, no. 125, pp.31-55.
https://search.emarefa.net/detail/BIM-139621
Modern Language Association (MLA)
Muhammad, Muhammad Mustafa…[et al.]. Monitoring of seasonal parasitic and mycotic problems affecting cultured oreochomis niloticus under semi-intensive system. Assiut Veterinary Medical Journal Vol. 56, no. 125 (Apr. 2010), pp.31-55.
https://search.emarefa.net/detail/BIM-139621
American Medical Association (AMA)
Marzuk, Muhammad Sayyid& Ahmad, Muhammad Abd al-Aziz& Muhammad, Muhammad Mustafa& al-Hadi, Sofia. Monitoring of seasonal parasitic and mycotic problems affecting cultured oreochomis niloticus under semi-intensive system. Assiut Veterinary Medical Journal. 2010. Vol. 56, no. 125, pp.31-55.
https://search.emarefa.net/detail/BIM-139621
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 51-55
Record ID
BIM-139621