Coccidiosis in Calves

Robertson, Andrew

doi:10.1016/s0372-5545(17)40355-5

Cited by 3 publications

(1 citation statement)

References 16 publications

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“…Robertson (26) tarafından yapılan muayenelerde sığırların kanlı ishalini husule getiren parazitin E.zürnii olduğu anlaşılmıştır. Hastalık olaylarına daha ziyade s ıcak mevsimlerde (Dİ1kbahardan sonbahar ın bidayetine kadar) rastlanm ış ve Coccidiosis'in intişarmda yüksek hararet ve rütubetin büyük önemi üzerinde durulmuştur.…”

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Ankara Ve Ci̇vari Siğirlarinda Cocci̇di̇osi̇s Olaylari Üzeri̇nde Arastirmalar

Mimioğlu¹

1956

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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Ankara Ve Ci̇vari Siğirlarinda Cocci̇di̇osi̇s Olaylari Üzeri̇nde Arastirmalar

Mimioğlu¹

1956

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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Studies on Coccidiosis of Calves in Hungarian Dairy Farms

Farkas

Szeidemann²,

Majoros

2007

Parasitol Res

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In most Hungarian dairy farms clinical coccidiosis of calves had been misdiagnosed because of the lack of information on the presence of Eimeria sp. in local animals, causing inestimable animal health problems and economical losses. For this reason the first countrywide study on coccidiosis of calves was carried out in 86 dairy farms. Faecal samples were collected from 743 calves aged between two and four months old in 2005 and 2006. The number of animals enrolled per farm ranged between two and ten. During the qualitative ovoscopy, 100 oocysts per sample were examined for species identification. Eimeria oocysts were found in 245 (33 %) samples. Of the seven species identified, the most prominent species were E. auburnensis (19.6 %), E. ellipsoidalis (15.9 %) and E. bovis (14.9 %). Eimeria zuernii, E. cylindrica, E. pellita or E. subsphaerica oocysts were found in less than 20 samples each. Multiple infections with two or more species occurred in 83 (33.9%) calves. The oocysts of at least one of the two pathogenic species, E. bovis and/or E. zurnii, were found on every farm studied, which infected 118 (48.2 %) animals, however, clinical coccidiosis was not observed. Coccidia of Eimeria were present in 74 (86.0 %) out of 86 farms, occurring countrywide, where the number of Eimeria sp. ranged between one and six. Based on these preliminary results the authors emphasise that veterinarians and cattle owners should be familiar with clinical signs and the potential implications of cattle coccidiosis. Management procedures and application of anti-coccidial compound are needed for minimising the impact of coccidiosis.

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Detection and Identification of Eimeria species in Naturally Infected Calves at Assiut Governorate

Malek

Kuraa

2018

Zagazig Veterinary Journal

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The current study was carried out to investigate the prevalence of Eimeria species among 75 diarrheic calves in Assiut Governorate. Oocysts of Eimeria spp. were found in 46.7% (35/75) of the examined fecal samples from diarrheic calves using light microscope and 88% (22/25) by using PCR. Very high significant difference of Eimeria infection was recorded in calves 3-6 months of age, 73.3% (22/30) and 1 week-3 months of age 28.9% (13/45). The prevalence of Eimeria spp. in calves with diarrhea showed the highest rate in summer (69.2%), followed by winter (36.4%), autumn (25%) and spring (7.7%). Eight species of Eimeria were isolated by parasitological examination. The prevalence of Eimeria spp. was E. zuernii (51.4%) followed by E. bovis (31.4%), E. alabamensis (31.4%), E. cylindrica (25.7%), E. subspherica (14.3%), E. canadensis (11.4%), E. ellipsoidalis (5.7%) and E. auburnensis (2.9%). Single infection of Eimeria spp. was found in 48.6% of the infected calves, whereas mixed infection involved two, three or four Eimeria spp. was observed in 51.4% of the infected calves. In conclusion, season and age of the calves were the most significant aspects connected with the possibility of infection with coccidiosis The PCR is a more reliable, sensitive and less time-consuming approach for diagnosis of Eimeria.

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Coccidiosis in Calves

Cited by 3 publications

References 16 publications

Ankara Ve Ci̇vari Siğirlarinda Cocci̇di̇osi̇s Olaylari Üzeri̇nde Arastirmalar

Ankara Ve Ci̇vari Siğirlarinda Cocci̇di̇osi̇s Olaylari Üzeri̇nde Arastirmalar

Studies on Coccidiosis of Calves in Hungarian Dairy Farms

Detection and Identification of Eimeria species in Naturally Infected Calves at Assiut Governorate

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