NDLI: Light microscopic study on Eimeria species infecting Japanese quails reared in Saudi Arabian farms

Content Provider	Springer Nature Link
Author	Bashtar, Abdel Rahman Abdel Ghaffar, Fathy Al Rasheid, Khaled A. S. Mehlhorn, Heinz Nasr, Ibrahim
Copyright Year	2010
Abstract	Japanese quails Coturnix coturnix japonica reared in economic farms were individually investigated for coccidian infections. The results indicated the absence of infections in birds younger than 1 month. An Eimeria infection rate of up to 80% was detected in birds 7–9 weeks old with a general infection rate of 29%. The infection rate decreased to 21.42% in birds older than 10 weeks. Morphometric characteristics of freshly shed, unsporulated oocysts were taken. These oocysts appeared pale yellow in color, were oval to subspherical in shape being limited by a bilayered oocyst wall of 1.2 µm. The unsporulated oocysts measured 17.73 ± 12.92 × 12.79 ± 1.69 µm (mean of 100) and possessed a polar granule, a micropyle and an oocyst residuum. The sporulation took 72 h and resulted in the formation of four elongated sporocysts containing two sporozoites, in addition to a stieda body and a sporocyst residuum. The life cycle of this Eimeria species was followed in experimentally infected quails. Three asexual generations (at 60, 78, and 96 h p.i.) were detected in the epithelium of the small intestine before the sexual cycle started at 84 h p.i. The prepatent period was 5 days, while the patent period covered 6–7 days. Besides this well-defined species, another Eimeria species occurred, the oocysts of which were excreted in low numbers and were characterized by the absence of a micropyle and an oocyst residuum. These oocysts measured 15.73 ± 2.22 × 14.18 ± 1.89 µm (mean of 100) and sporulated already within 60 h.
Starting Page	409
Ending Page	416
Page Count	8
File Format	PDF
ISSN	09320113
Journal	Parasitology Research
Volume Number	107
Issue Number	2
e-ISSN	14321955
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-04-27
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Immunology Microbiology Medical Microbiology
Content Type	Text
Resource Type	Article
Subject	Infectious Diseases Veterinary Parasitology Insect Science

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