21 documents found, page 1 of 3

Risk factor analysis associated with Neospora caninum in dairy cattle in Wester...

Abstract Neospora caninum is considered to be one of the main causes of abortion among cattle. The present survey was conducted in the municipality of Rolim de Moura, Rondônia State, Brazil. A questionnaire that investigates the epidemiological aspects of neosporosis was used in the analysis of risk factors associated with the animal-level and herd-level prevalence in dairy cattle. A total of 416 bovine blood s...

In vivo effect of diflubenzuron, administered via mineral salt supplementation,...

Abstract This study involved two field trials with the aim of evaluating the efficacy of diflubenzuron, via mineral supplementation, against Haematobia irritans parasitizing cattle. Concomitantly with the main trial, a stall test was conducted to ascertain the effects of a different formulation with the same active ingredient against Rhipicephalus microplus, along with the action of diflubenzuron on the reprodu...

Occurrences of Oestrus ovis parasitism in necropsied sheep in the Umuarama micr...

Between January 2007 and September 2013, 71 sheep belonging to 12 farms in the Umuarama microregion, State of Paraná, were evaluated regarding presence of Oestrus ovis larvae, during necropsies. The farms from which these animals originated were visited and the owners and employees were interviewed. Occurrences of O. ovis parasitism in sheep were diagnosed for the first time on this microregion. Of the 71 anima...

CLINICAL, HEMATOLOGICAL, AND SEMINAL ALTERATIONS AND PARASITEMIA OF MALE GOATS ...

Fauna helmintológica de ovinos provenientes da microrregião de Jaboticabal, est...

Avaliou-se a prevalência e a contagem parasitária das diferentes espécies de helmintos de ovinos provenientes da microrregião de Jaboticabal, região Noroeste de São Paulo. Para tanto, foram utilizados 66 animais naturalmente infectados, de quatro a 36 meses de idade, criados em regime extensivo. Os resultados necroscópicos revelaram a presença de sete gêneros e 12 espécies, com a seguinte prevalência e a média ...

Resistência de Haemonchus placei, Cooperia punctata e Oesophagostomum radiatum ...

O amplo espectro de ação dos endectocidas e a praticidade de aplicação das suas formulações pour-on são fatores que têm estimulado uma maior frequência de utilização destes produtos na criação de bovinos. Neste estudo, avaliou-se a eficácia anti-helmíntica da ivermectina, administrada via pour-on, 500mcgkg-1, contra nematódeos de bovinos provenientes de diferentes rebanhos. Foram adquiridos 12 bezerros de cada ...

Effect of a spray formulation on the reproductive parameters of a susceptible p...

The number of studies emphasizing the possible damage that acaricidal spray formulations can cause on engorged female ticks' reproductive parameters is small. The present study evaluated the deleterious effects of a spray formulation (dichlorvos 60% + chlorpyrifos 20%) on the reproductive parameters of a susceptible population of Rhipicephalus (B.) microplus females, using the Stall Test. The ticks were allocat...

Endoparasites of horses from the Formiga city, located in center-west region of...

With the aim of studying the endoparasite fauna of horses from the Formiga city, located in center-west region of the state of Minas Gerais, 25 animals that were naturally infected with helminths were evaluated. By means of parasitological necropsies, different endoparasites were found. The subfamily Cyathostominae presented the highest incidence, followed by Trichostrongylus axei, Oxyuris equi, Triodontophorus...

Eimeria species in young and adult sheep raised under intensive and / or semi-i...

The present study aimed to identify Eimeria species in young and adult sheep raised under intensive and / or semi-intensive systems of a herd from Umuarama city, Parana State, Brazil using the traditional diagnostic methods and to correlate the infection level/types of infection in the different age/system in this herd. Fecal samples were collected from the rectum of 210 sheep and were subjected to laboratory a...

Ivermectina e abamectina em diferentes doses e vias de aplicação contra larvas ...

Avaliou-se a eficácia preventiva da ivermectina e da abamectina, administradas em diferentes vias (subcutânea, intramuscular e pour-on) e doses (200 e 500mcg kg-1), contra larvas de Cochliomyia hominivorax em bolsas escrotais de bovinos após a castração. Foram utilizados animais de seis propriedades do estado de São Paulo e Minas Gerais, Brasil. Para cada estudo, selecionou-se de 30 a 45 bovinos não castrados, ...