• Home
  • Browse
    • Current Issue
    • By Issue
    • By Author
    • By Subject
    • Author Index
    • Keyword Index
  • Journal Info
    • About Journal
    • Aims and Scope
    • Editorial Board
    • Publication Ethics
    • Indexing and Abstracting
    • Peer Review Process
  • Guide for Authors
  • Submit Manuscript
  • Contact Us
 
  • Login
  • Register
Home Articles List Article Information
  • Save Records
  • |
  • Printable Version
  • |
  • Recommend
  • |
  • How to cite Export to
    RIS EndNote BibTeX APA MLA Harvard Vancouver
  • |
  • Share Share
    CiteULike Mendeley Facebook Google LinkedIn Twitter
Egyptian Journal of Aquatic Biology and Fisheries
arrow Articles in Press
arrow Current Issue
Journal Archive
Volume Volume 29 (2025)
Volume Volume 28 (2024)
Volume Volume 27 (2023)
Volume Volume 26 (2022)
Volume Volume 25 (2021)
Volume Volume 24 (2020)
Volume Volume 23 (2019)
Volume Volume 22 (2018)
Volume Volume 21 (2017)
Volume Volume 20 (2016)
Volume Volume 19 (2015)
Volume Volume 18 (2014)
Volume Volume 17 (2013)
Volume Volume 16 (2012)
Volume Volume 15 (2011)
Volume Volume 14 (2010)
Volume Volume 13 (2009)
Volume Volume 12 (2008)
Volume Volume 11 (2007)
Volume Volume 10 (2006)
Volume Volume 9 (2005)
Volume Volume 8 (2004)
Volume Volume 7 (2003)
Issue Issue 4
Issue Issue 3
Volume Volume 6 (2002)
Volume Volume 5 (2001)
Volume Volume 4 (2000)
Volume Volume 3 (1999)
Volume Volume 2 (1998)
Volume Volume 1 (1997)
Elkhatib, N., Elias, N. (2003). COMPARATIVE FECUNDITY ESTIMATION OF CULTURED FEMALE FISHES WITH MYXOSPOREAN AND FUNGAL INFECTIONS. Egyptian Journal of Aquatic Biology and Fisheries, 7(4), 141-165. doi: 10.21608/ejabf.2003.1789
Nahla Elkhatib; Nashwa Elias. "COMPARATIVE FECUNDITY ESTIMATION OF CULTURED FEMALE FISHES WITH MYXOSPOREAN AND FUNGAL INFECTIONS". Egyptian Journal of Aquatic Biology and Fisheries, 7, 4, 2003, 141-165. doi: 10.21608/ejabf.2003.1789
Elkhatib, N., Elias, N. (2003). 'COMPARATIVE FECUNDITY ESTIMATION OF CULTURED FEMALE FISHES WITH MYXOSPOREAN AND FUNGAL INFECTIONS', Egyptian Journal of Aquatic Biology and Fisheries, 7(4), pp. 141-165. doi: 10.21608/ejabf.2003.1789
Elkhatib, N., Elias, N. COMPARATIVE FECUNDITY ESTIMATION OF CULTURED FEMALE FISHES WITH MYXOSPOREAN AND FUNGAL INFECTIONS. Egyptian Journal of Aquatic Biology and Fisheries, 2003; 7(4): 141-165. doi: 10.21608/ejabf.2003.1789

COMPARATIVE FECUNDITY ESTIMATION OF CULTURED FEMALE FISHES WITH MYXOSPOREAN AND FUNGAL INFECTIONS

Article 8, Volume 7, Issue 4, September 2003, Page 141-165  XML PDF (1.31 MB)
Document Type: Original Article
DOI: 10.21608/ejabf.2003.1789
View on SCiNiTO View on SCiNiTO
Authors
Nahla Elkhatib; Nashwa Elias
Department of Fish Disease, Animal Health Research Institute, Dokki, Giza.
Abstract
This is the first trial so far in Egypt through upgrading the fish production by revealing specific ovarian myxozoan and fungal infections that affect their fecundity. Fecundity comparison was held between noninfected and infected Oreochromis niloticus and Cyprinus carpio with either Myxobolus spp. or Icthyophonus hoferi.The myxosporean parasite, Myxobolus spp. (with higher prevalence in both species ) appeared as numerous white large rounded spores embedded in the ovarian tissue causing excessive fibrosis. The fungus /. hoferi inspite of its lower prevalence among the 2 species, the white capsulated cysts and separate colonies caused ovarian atresia and fibrosis with inflammatory oedema.
Drop of fecundity was represented by significant decrease in relative and absolute fecundity, total protein, gonadosomatic and hepatosomatic indices ranging from highly with 0. niloticus to moderately with C carpio. In O. niloticus ( more sensitive ) /. hoferi reflected a positive correlation with ovarian weight and gonadosomatic index, while Myxobolus spp. recorded a negative correlation between ovarian weight and the body parameters (weight, length & depth).
The results revealed that infection takes place among apparently healthy fish proving that gonadal periodical examination is the only way for detecting such infections.
Keywords
Fish fecundity; Ovary; Icthyophonus hoferi; Myxoholus sp
Main Subjects
Fisheries
Statistics
Article View: 421
PDF Download: 601
Home | Glossary | News | Aims and Scope | Sitemap
Top Top

Journal Management System. Designed by NotionWave.