Prevalence of Eimeria parasites in the Hubei and Henan provinces of China

Geng, Tiantian; Cheng, Ya; Lei, Zhenyu; Shen, Bang; Fang, Rui; Hu, Min; Zhao, Junlong; Zhou, Yanqin

doi:10.1007/s00436-020-07010-w

Cited by 18 publications

(21 citation statements)

References 18 publications

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“…In the present study, a high risk of E. tenella-E. brunetti infection in vaccinated ocks was identi ed compared to those administrated a combination of vaccines and anticoccidials (OR = 4.52, 95% CI: 1.21-16.91; p < 0.05). This study also found a high prevalence of E. brunetti (19.54%) in Guangdong, compared with previous study (6.6%) in China [23], for which no commercial vaccines containing E. brunetti available in China. Given its classi cation as a highly pathogenic species, the inclusion of E. brunetti in vaccines in China may be warranted.…”

Section: Eimeria Species Occurrence In Different Regions In Guangdongsupporting

confidence: 58%

Prevalence and geographic distribution of Eimeria species on commercial broiler farms in Guangdong, China

Liao,

Lin,

Zhou

et al. 2024

Preprint

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Background Coccidiosis is one of the most frequently reported disease in chickens, exerting a substantial economic impact on the poultry industry. This study aims to conduct an epidemiological investigation into the occurrence of Eimeria species and associated risk factors under intensive management conditions across four regions in Guangdong province, China. Results A total of 394 fecal samples were obtained from 89 broiler chicken farms, culminating in an overall positivity rate of 87.06%. The results showed that the identification of all seven Eimeria species, with E. acervulina (36.29%), E. mitis (35.03%), E. tenella (34.52%) and E. necatrix (30.96%) emerging as the most prevalent species. Remarkably, single-species infections were observed in 42.86% of instances, while two to three species mixed infections were detected in 39.94% of the samples. Moreover, brid age, farming practices, control strategies, farm locations, and the presence of necrotic enteritis (NE) proved significant risk factors. Notably, a strong correlation was observed between brid age, particularly in adult birds, and the occurrence of E. necatrix (p < 0.001). A significant correlation was identified between the infection of E. necatrix or E. acervulina and the presence of NE in flocks (p < 0.001). Flocks from northern Guangdong and Peal River delta displayed higher prevalence of E. necatrix (p < 0.05). Flocks under the control programs incorporating live vaccines correlated strongly with E. tenella–E. brunetti infections (p < 0.05). Conclusions Molecular analysis undertaken in this study, coupled with the correlation results, furnishes compelling evidence. Nevertheless, it is imperative to underscore the necessity for further surveys to delve deeper into the occurrence of different Eimeria species under intensive management conditions, which will contribute significantly to our knowledge of coccidia control in poultry.

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Section: Eimeria Species Occurrence In Different Regions In Guangdongsupporting

confidence: 58%

Prevalence and geographic distribution of Eimeria species on commercial broiler farms in Guangdong, China

Liao,

Lin,

Zhou

et al. 2024

Preprint

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“…In our research, subclinical coccidiosis was observed in the chickens aged from 3 to 6 weeks, on 51% of examined farms, while 8% of chicken farms of the same age had a clinically manifested form of the disease. The prevalence of coccidiosis in other countries around the world varies [7,10,16,22,32,33] and ranges from 5.55% [34] to 98.0% [8].…”

Section: Discussionmentioning

confidence: 99%

Molecular Investigation of Eimeria Species in Broiler Farms in the Province of Vojvodina, Serbia

Pajić́

Todorović

Knežević́

et al. 2023

Life

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Coccidiosis is a significant poultry disease caused by the Eimeria species. This study aims to determine the prevalence of Eimeria spp. on broiler farms in Vojvodina, along with the identification of parasite species, and assess the implemented biosecurity measures. The study was conducted on 100 broiler chicken farms (28 small-sized; 34 medium-sized; 38 large-sized farms) from June 2018 to December 2021. One pooled sample of faeces was collected from three to six-week-old chickens from each farm, and assessment of biosecurity measures was carried out using a questionnaire. Using the PCR method, DNA of Eimeria was found in 59 samples (59%), while 41 samples (41%) were negative. Four species of Eimeria were identified, and their prevalence was the following: E. acervulina (37%), E. maxima (17%), E. mitis (25%) and E. tenella (48%). A significant difference (p < 0.05) was established in the number of oocysts in flocks from small-sized farms compared to medium-sized farms. It was found that regular implementation of disinfection, disinsection and deratisation measures, as well as all the biosecurity measures, can significantly reduce the occurrence of coccidiosis. These results will help to develop better strategies for the control and prevention of coccidiosis on farms.

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“…On the other hand, Amam et al (2008) suggested that sodium sulfachloropyrazine monohydrate (sulfa drug) can only arrest development of the parasite, rather than destroying the parasite. It was stated that sulfadimidine is more effective than amprolium for treatment of coccidiosis, but overuse of anticoccidial drugs, such as sulfachloropyrazine has resulted in an increase in the emergence drug resistance (Mathis et al, 1984;Abdisa and Kebede, 2016;Geng et al, 2021).…”

Section: Histopathological Examinationmentioning

confidence: 99%

Evaluation the Resistence of Eimeria Spp. Local Isolates to Anticcocidial Drugs and the Efficacy of Live Attenuated Vaccine and/or Prebiotic in Control of Eimeria Infection in Fayoumi Chickens

Ahmed

WARDAA²,

MOSTAFA

et al. 2023

Assiut Veterinary Medical Journal

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Coccidiosis is the most important intestinal parasitic disease of poultry worldwide. It may lead to high economic losses in poultry because of the high mortality rates and high cost of medication. The present study aimed to evaluate the resistance of Eimeria spices local isolates to anticoccidials and to study the efficacy of live attenuated vaccines and/or prebiotics in control of Eimeria infection in Fayoumi chickens. Seventy gut samples of Faioumy chickens at 29-39 days old suspected for coccidiosis infection were collected from the research station of animal production at Malawi city, El-Minia Governorate, and subjected to isolation and morphological identification. Resistance of Eimeria species to anticoccidial drugs was evaluated using anticoccidial sensitivity profiles 1 (ASP1) and 2 (ASP2). Evaluation of the effectiveness of living attenuated vaccine (Fortegra) and/or prebiotic (Agrimos) in control of coccidiosis was done using experimental challenge with isolated Eimeria species. It was concluded that using morphological methods for identification of Eimeria spp. in Fayoumi chickens, five Eimeria spp. could be isolated; E. mitis, E. maxima, E. acervuline, E. tenella, and E. praecox. The present study provides evidence for the resistance of isolated Eimeria spp. to toltrazuril and good sensitivity to sulfaclozine and amprolium in fayoumi chickens. This study showed that living attenuated vaccine is effective for control of coccidiosis and better results will be obtained in case of addition of prebiotic to vaccine. The use of prebiotics in control of Eimeria infection is not effective.

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Prevalence of Eimeria parasites in the Hubei and Henan provinces of China

Cited by 18 publications

References 18 publications

Prevalence and geographic distribution of Eimeria species on commercial broiler farms in Guangdong, China

Prevalence and geographic distribution of Eimeria species on commercial broiler farms in Guangdong, China

Molecular Investigation of Eimeria Species in Broiler Farms in the Province of Vojvodina, Serbia

Evaluation the Resistence of Eimeria Spp. Local Isolates to Anticcocidial Drugs and the Efficacy of Live Attenuated Vaccine and/or Prebiotic in Control of Eimeria Infection in Fayoumi Chickens

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