Coccidiosis in japanese quails (Coturnix japonica): characterization of a naturally occurring infection in a commercial rearing farm&lt;A NAME="nt01a"&gt;&lt;/A&gt;

Teixeira, Marcel; Filho, WL Teixeira; Lopes, Cwg

doi:10.1590/s1516-635x2004000200010

Cited by 32 publications

(42 citation statements)

References 14 publications

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“…Bhatia et al (1965), Tsunoda & Muraki (1971) and Tsutsumi (1972) described the three species characterized in this study, but did they lacked the current optical resources that allowed improved visualization and detailed descriptions of sporulated oocysts. Teixeira & Lopes (2002) and Teixeira et al (2004) described morphologic details of oocysts of these species, but some data essential for differentiation were not provided, such as flattening of one of the ends of the oocysts of E. tsunodai and the presence of SSB in all three species. Furthermore, in those articles the description of the SB as piriform in E. uzura and the SB as triangular in E. tsunodai was in fact making reference to the SB and SSB complex.…”

Section: Discussionmentioning

confidence: 99%

“…Among the most pathogenic parasites, coccidiosis caused by species of Eimeria is distinguished by severe enteropathy, which promotes anorexia, decreased reproduction and posture in adults, and is responsible for high levels of mortality in young animals (Mazurkiewicz et al 1967, Norton & Pierce 1971, Tsunoda & Muraki 1971, Ruff et al 1984, Teixeira et al 2004). …”

Section: Introductionmentioning

confidence: 99%

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Eimeria spp. from Japanese quails (Coturnix japonica): new characteristic features and diagnostic tools

et al. 2013

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RESUMO.-[Eimeria spp. de codornas japonesas (Coturnix japonica): novas características e ferramentas de diagnóstico.] A codorna japonesa Coturnix japonica originária do norte da África, Europa e Ásia, é utilizada mundialmente como um animal experimental e modelo para avicultura. O presente trabalho caracteriza Eimeria bateri, Eimeria tsunodai e Eimeria uzura recuperadas de C. japonica. Baseado no fato de que as codornas têm uma distribuição global, como são os seus coccídios, os resultados deste estudo devem propiciar o diagnóstico destas Eimeria spp. em outras regiões e continentes. Eimeria bateri demonstrou a maior intensidade de infecção e eliminaram oocistos a partir do quarto dia após infecção, em contraste E. tsunodai e E. uzura eliminaram oocistos a partir do quinto dia após infecção. As três espécies foram morfometricamente semelhantes e polimórficas. No entanto, a aplicação da regressão linear, histogramas e ANOVA proveram meios para a identificação destas espécies. Finalmente, o algoritmo foi totalmente eficiente uma vez que valores resultantes não foram sobrepostos. TERMOS DE INDEXAÇÃO: Coccidiose, diagnóstico, Eimeria bateri, Eimeria tsunodai, Eimeria uzura. INTRODUCTIONThe breeding of Japanese quails Coturnix japonica has excelled in aviculture, due to increased consumption of exotic meats and eggs, and represents an alternative to chicken production. In the USA, Japanese quails were introduced in the 1950s, and at that time the breeding of Japanese quails was already widespread in European countries. In Brazil, Japanese quails were introduced in the 1950s, but large scale production began in the mid 1960's (Howes 1964, Murakami & Ariki 1998, IUCN 2013, Jatoi et al. 2013.In addition to its importance for aviculture, the Japanese quail has become, in recent decades, an important experimental animal for scientific research. It is used extensively in studies examining genetics, nutrition, toxicology, em- The Japanese quail Coturnix japonica originated from North Africa, Europe and Asia, is used worldwide as an experimental animal and model for aviculture. The current paper characterizes Eimeria bateri, Eimeria tsunodai and Eimeria uzura recovered from C. japonica. Based on the fact that quails have a global distribution, as are their coccidia, the findings of this study should provide the means for diagnosis of those Eimeria spp. in other regions and continents. Eimeria bateri showed the greatest intensity of infection and shed oocysts from the fourth day after infection; in contrast, E. tsunodai and E. uzura shed oocysts from the fifth day after infection. The three species shared a high degree of similarity and were all polymorphic. Yet, the application of line regressions, histograms and ANOVA provided means for the identification of these species. Finally, the algorithm was very efficient since verified that resultant values were not superimposed.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Eimeria spp. from Japanese quails (Coturnix japonica): new characteristic features and diagnostic tools

et al. 2013

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“…Intensive production systems where birds are kept on litter in confined spaces contribute to the spread of infections, including coccidioses caused by Eimeria uzura, E. bateri, E. taldykurganica and E. tsunodai (Tsunoda and Muraki 1971, Tsutsumi 1972, Teixeira et al 2004, Bashtar et al 2010.Young quails generally develop acute coccidiosis, sometimes without evident symptoms of diarrhea, whereas a subclinical form of the disease is noted…”

Section: Introductionmentioning

confidence: 99%

Biochemical parameters in Japanese quails Coturnix coturnix japonica infected with coccidia and treated with Toltrazuril

Sokół

Gesek

Raś-Noryńska

et al. 2015

Polish Journal of Veterinary Sciences

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The activity of aspartate aminotransferase, alanine aminotransferase and lactate dehydrogenase, total protein, albumin and cholesterol levels were determined in the blood serum of Japanese quails infected with coccidia and treated with Baycox (active ingredient: toltrazuril). Lower levels of AST and ALT activity were noted in treated birds regardless of the applied Baycox dose. The biochemical changes observed in the blood serum of Japanese quails point to coccidia-induced damage of digestive system tissues despite an absence of pronounced clinical symptoms. Significantly lower levels of AST activity and higher levels of LDH activity in treated birds indicate that coccidiosis treatment with toltrazuril contributed to the regeneration of digestive system tissues. An insignificant increase in cholesterol levels was noted, whereas the other serum biochemical parameters remained within the reference ranges.

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“…The presence of non-specific clinical symptoms or unidentified mild clinical symptoms prevents from correct diagnosis. In such cases, the progression of coccidiosis may adopt a subclinical, chronic form (7). Three Eimeria species have been identified and described in Japanese quails (Coturnix coturnix japonica): Eimeria uzura, E. bateri, and E. tsunodai (2,7,8,10).…”

Section: Introductionmentioning

confidence: 99%

Pathomorphological changes in the alimentary system of Japanese quails naturally infected with Eimeria tsunodai

Gesek

Welenc

Tylicka

et al. 2014

Bulletin of the Veterinary Institute in Pulawy

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The aim of this study was to investigate pathomorphological changes in the duodenum, jejunum, ileum, and caecum of Japanese quails naturally infected with Eimeria tsunodai. Samples of the intestines were collected from 6-week-old cockerels and hens before laying and from laying quails aged 12, 24, and 48 weeks. The tissue sections were stained with haematoxylin and eosin, PAS method according to McManus, and Ziehl-Neelsen method. Morphometric and morphological analyses of coccidia revealed that Eimeria tsunodai was responsible for the infection. Different developmental stages of the coccidia were observed almost exclusively in the caecum, and they led to the complete damage of caecal mucosa. The main changes observed in the caecum involved mucosal damage, atrophy of the folds and crypts, and mucosal desquamation. No significant inflammation changes were detected. The degree of damage to caecal mucosa increased with age and the greatest damage was noted at the age of 48 weeks. Eimeria tsunodai infections occur in Japanese quails during the entire laying period. Different developmental stages of coccidia are responsible for total damage to caecal mucosa.

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Coccidiosis in japanese quails (Coturnix japonica): characterization of a naturally occurring infection in a commercial rearing farm<A NAME="nt01a"></A>

Cited by 32 publications

References 14 publications

Eimeria spp. from Japanese quails (Coturnix japonica): new characteristic features and diagnostic tools

Eimeria spp. from Japanese quails (Coturnix japonica): new characteristic features and diagnostic tools

Biochemical parameters in Japanese quails Coturnix coturnix japonica infected with coccidia and treated with Toltrazuril

Pathomorphological changes in the alimentary system of Japanese quails naturally infected with Eimeria tsunodai

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