The efficacy of ivermectin, administered in a sustained release formulation by intraruminal pumps at approximate daily dose rates of 20, 40 and 60 micrograms/kg, was evaluated in 16 cattle against induced infestations of 3 strains of adult Amblyomma hebraeum. Engorged female ticks were mass-measured and incubated, and reproductive data recorded. There was an increase in mortality of male and fe...

Experimental transmission of B.bigemina between cattle and ticks Boophilus decoloratus were carried out in the laboratory. Body bags were applied on the bodies of two calves infected with B. bigemina.These were the four month old splenectomized male Friesian calf number 10B and the two month old intact male Ayrshire calf number 28B. B. decoloratus larvae were then introduced into these body bag...

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 t...

Ticks are amongst the important ectoparasites where livestock concerned, as they adversely affect animals through bloodsucking. In tropical and subtropical countries, transmit pathogens such babesiosis, theileriosis, ehrlichiosis, anaplasmosis in cattle, causing a reduction production rate significant concomitant economic losses. 80% of cattle population across world, with an estimated loss USD...

Lumpy skin disease (LSD) is of substantial economic importance for the cattle industry in Africa and the Near and Middle East. Several insect species are thought to transmit the disease mechanically. Recent transmission studies have demonstrated the first evidence for a role of hard (ixodid) ticks as vectors of lumpy skin disease virus (LSDV). The aim of this study was to attempt in vitro growt...

Limited prior evidence suggests that 5'-nucleotidase, an ectoenzyme principally located in the Malpighian tubules of the tick Rhipicephalus (Boophilus) microplus, could be an effective antigen in an anti-tick vaccine. To assess this, recombinant 5'-nucleotidase was expressed in Escherichia coli and used in vaccination trials with both sheep and cattle. Vaccinated sheep were challenged with fres...

Anaplasma marginale is the most prevalent pathogen of cattle in tropical and subtropical regions of the world and causes the disease bovine anaplasmosis. The importance of water buffalo in the world economy is increasing. In addition, while water buffalo may serve as a reservoir host for A. marginale, the susceptibility of this host for A. marginale cattle strains in Brazil has not been reporte...

BACKGROUND A survey on tick species composition was carried out in Golestan Province Iran during year 2010-2011.The aim was to determine tick species parasitizing domestic ruminants and their seasonal population dynamics. METHODS A total of 124 sheep, 92 goats, 84 cattle, 74 camels and 12 horses in several villages were inspected for tick infestation. The collected ticks preserved in 70% alco...

Tick-borne diseases pose a serious threat to human health in South-Eastern Europe, including Kosovo. While Crimean-Congo hemorrhagic fever (CCHF) is a well-known emerging infection in this area, there are no accurate data on Lyme borreliosis and tick-borne encephalitis (TBE). Therefore, we sampled and tested 795 ticks. Ixodes ricinus (n = 218), Dermacentor marginatus (n = 98), and Haemaphysalis...

A crosssectional study was conducted in Dangila District, Awi zone, from November, 2014 to April, 2015 to estimate the prevalence of major ixodid ticks on cattle and to identify the prevalent ticks to the genera level. Study animals were selected randomly. Out of the total of 384 cattle examined, 216(56.2%) were found to be infested by one or more ticks. About 864 adult ticks were collected fro...