Bovine coccidiosis in calves following turnout

Marshall, R.N.; Catchpole, J.; Green, J. A.; Webster, K. A.

doi:10.1136/vr.143.13.366

Cited by 28 publications

(21 citation statements)

References 3 publications

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“…Although coccidiosis predominantly caused by Eimeria alabamensis is known to show a low morbidity, it can also cause considerable clinical and economic consequences in grazing young stocks, beginning a few days after turnout (Gräfner et al 1982, Svensson et al 1994, Marshall et al 1998. The occurrence and abundance of coccidian species in cattle have been studied in various parts of the world (Kasim and Al-Shawa 1985, Parker and Jones 1987, Kennedy and Kralka 1987, Oda and Nishida 1989, Munyua and Ngotho 1990, Matjila and Penzhorn 2002, Ernst and Benz 1986.…”

Section: Introductionmentioning

confidence: 98%

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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Section: Introductionmentioning

confidence: 98%

Studies on Coccidiosis of Calves in Hungarian Dairy Farms

Farkas

Szeidemann²,

Majoros

2007

Parasitol Res

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“…The two most pathogenic coccidian species in cattle are Eimeria bovis and Eimeria zuernii (Marshall et al 1998;Ernst and Benz 1986); they induce clinical coccidiosis resulting in losses, especially in calves of up to 1 year of age, and occur worldwide (Ernst and Benz 1986). Therefore treatment of this important disease is of special interest in calf-rearing farms.…”

Section: Introductionmentioning

confidence: 99%

Control of clinical coccidiosis of calves due to Eimeria bovis and Eimeria zuernii with toltrazuril under field conditions

Mundt

Bangoura²,

Mengel

et al. 2005

Parasitol Res

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The efficacy of metaphylactic treatment with toltrazuril (Baycox 5% suspension) against natural infections with Eimeria bovis and/or Eimeria zuernii in calves was investigated. The study was conducted with 208 calves on five calf-rearing farms in Germany and the Czech Republic. All participating farms had a notable incidence of coccidiosis. Animals were treated 14 days after stabling in the respective facility. One group was treated with 15 mg toltrazuril/kg body weight, and a second group served as the sham-treated control. Assessment of efficacy was based on faecal consistency and oocyst excretion of E. bovis and E. zuernii, both investigated throughout the study. Duration and rate of oocyst excretion as well as number of scour days with E. bovis or E. zuernii oocyst shedding and the severity of diarrhoea were significantly lower in the toltrazuril-treated groups. It is concluded that a single metaphylactic treatment with toltrazuril controls coccidiosis of housed calves under various field conditions.

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“…have been shown to be pathogenic in cattle, causing several clinical symptoms (SAMSON-HIMMELSTJERNA et al, 2006;SÁNCHEZ;ROMERO;FOUNROGE, 2008). Eimeria alabamensis has been reported to induce clinical coccidiosis (SVENSSON; UGGLA; PEHRSON, 1994;MARSHALL et al, 1998;SAMSON-HIMMELSTJERNA et al, 2006) and E. auburnensis and E. ellipsoidalis have been occasionally associated with diarrhea in bovines (MIELKE;RUDNICK;HIEPE, 1993). However, the two most pathogenic species are E. bovis and E. zuernii (STOCKDALE et al, 1981;CHIBUNDA et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Frequency of species of the Genus Eimeria in naturally infected cattle in Southern Bahia, Northeast Brazil

Almeida

Magalhães

Neta

et al. 2011

Rev. Bras. Parasitol. Vet.

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The aim of this study was to determine the presence of species of the genus Eimeria species in naturally infected bovines in Southern Bahia, Northeast Brazil. The study population comprised 117 Zebu crossbred cattle that belonged to 10 dairy herds with extensive or semi-extensive production systems. The modified Gordon and Whitlock technique was used to determine positive samples and number of oocysts per gram of feces. Statistical analyses were performed using the chi-square test with Yates correction and a 95% confidence interval. Thirty-nine cattle (33.33%) were positive, and ten different species were identified in infected animals: E. bovis (24.79%); E. canadensis (8.55%); E. zuernii (6.83%); E. ellipsoidalis (5.99%); E. cylindrica (3.42%); E. auburnensis (3.42%); E. brasiliensis (2.56%); E. bukidnonensis (1.71%); E. alabamensis (0.85%), and E. subspherica (0.85%). Higher parasitism was observed in animals up to one year of age (p = 0.005), but no animal presented clinical signs of the disease. As the presence of clinical eimeriosis was not evidenced and all animals were Zebu crossbred cattle from extensive or semi-extensive production systems, further studies should be conducted to investigate the effects of these factors on disease development.Keywords: Coccidian, dairy cattle, age group, frequency. ResumoO objetivo deste estudo foi determinar a presença de espécies do gênero Eimeria em bovinos naturalmente infectados, na região Sudeste da Bahia, Nordeste do Brasil. A população do estudo incluiu 117 bovinos mestiços de raças Zebuínas que pertenciam a 10 fazendas leiteiras com sistemas de produção extensivo ou semiextensivo. A técnica de Gordon e Whitlock modificada foi utilizada para determinar as amostras positivas e o número de oocistos por grama de fezes. A análise estatística foi realizada utilizando o teste do qui-quadrado com correção de Yates e intervalo de confiança de 95%. Trinta e nove animais (33,33%) foram positivos, e dez diferentes espécies foram identificadas nos animais infectados: E. bovis (24,79%), E. canadensis (8,55%), E. zuernii (6,83%), E. ellipsoidalis (5,99% ), E. cylindrica (3,42%), E. auburnensis (3,42%), E. brasiliensis (2,56%), E. bukidnonensis (1,71%), E. alabamensis (0,85%) e E. subspherica (0,85%). Maior parasitismo foi observado em animais com até um ano de idade (p = 0,005), mas nenhum animal apresentou sinais clínicos que fossem compatíveis com a parasitose. Como não foi observado presença de eimeriose clínica e como todos os animais eram mestiços zebuínos e pertencentes ao sistema de criação extensivo ou semiextensivo, novos estudos devem ser conduzidos para comprovar a influência desses fatores no surgimento da doença.Palavras-chave: Coccídio, gado leiteiro, faixa etária, frequência.

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Bovine coccidiosis in calves following turnout

Cited by 28 publications

References 3 publications

Studies on Coccidiosis of Calves in Hungarian Dairy Farms

Studies on Coccidiosis of Calves in Hungarian Dairy Farms

Control of clinical coccidiosis of calves due to Eimeria bovis and Eimeria zuernii with toltrazuril under field conditions

Frequency of species of the Genus Eimeria in naturally infected cattle in Southern Bahia, Northeast Brazil

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