For hundreds of years, the unmanaged Soay sheep population on St Kilda has survived despite enduring presumably deleterious co-infections of helminth, protozoan and arthropod parasites and intermittent periods of starvation. Important parasite taxa in young Soay sheep are strongyles (Trichostrongylus axei, Trichostrongylus vitrinus and Teladorsagia circumcincta), coccidia (11 Eimeria species) a...

In this review, the main gastrointestinal nematodes infecting cattle in Zimbabwe and the epidemiological factors influencing their occurrence are reviewed and discussed. Nineteen gastrointestinal nematode species that belong to seven families have been found to occur in cattle in Zimbabwe. The main genera reported to date are Cooperia, Haemonchus, Trichostrongylus and Oesophagostomum and the do...

We have investigated the molecular evolution of the nucleotide sequences of 18S ribosomal RNA genes (18S rDNA) from a set of nematodes in the family Rhabditidae (Nematoda: Secernentea). Our aim was to evaluate the usefulness of this gene for molecular systematics of this family, as well as to establish phylogenetic relationships within a group that has potential for comparative studies of the r...

The initial infection process of nematode-trapping fungi is based on an interaction between the trapping structure of the fungus and the surface of the nematode cuticle. A bioassay was designed to investigate the predatory response of several isolates of nematode-trapping fungi against 3 mutants of Caenorhabditis elegans (AT6, AT10 and CL261), which have been reported to differ in the reaction ...

BACKGROUND Thirteen red deer (Cervus elaphus), culled from the isolated population at the Mongstad Oil Refinery, Norway, were investigated for gastrointestinal helminths. These animals, enclosed by the refinery fence, do not have contact with other ruminants and have a high population density considering the available browsing area (1 km(2)) within the refinery site (3 km(2)). The population wa...

Successive pairs of approximately 4-month-old Friesland bull calves, raised under worm-free conditions, were exposed to helminth infection for 14 days on dry-land Kikuyu grass pastures at 28-day to monthly intervals, on a coastal farm in a non-seasonal rainfall region of the Eastern Cape Province. With the exception of one pair of calves exposed for 28 days, this procedure was repeated for 28 c...

The purpose of the research is to determine species composition nematodes from suborder Strongylata and study organoleptic physical chemical parameters Nubian goats’ milk at strongylatoses digestive tract. Materials methods . subjects were lactating goats aged 3 5 years private farms in Moscow Region. A total 37 animals examined. Faeces studied by flotation per Fülleborn KotelnikovKhrenov. To c...

Background: Trichostrongylus is an intestinal parasite that highly prevalent in humans and livestock worldwide. There limited information about the prevalence epidemiology of species among infected Mazandaran Province, northern Iran. This study aimed to identify spp. small ruminants using morphometric molecular methods. Materials Methods: Small organs sheep goats, slaughtered were examined for ...

the prevalence of various intestinal helminthiasis have been determined by the examination of 8109 inhabitants of 20 villages located in the mountainous and coastal regions of the bandar abbas and minab areas in southern iran. a portion of people infected with each parasite were treated with the appropriate drug i and the worms expelled were collected, identified and counted. the results indica...

In order to characterize the epidemiology of sheep gastrointestinal nematodes in organic and conventional flocks in Canada, a longitudinal study was carried out from May 2006 to March 2008 on 32 purposively selected farms in Ontario (ON) and Quebec (QC): 8 certified organic (CO), 16 non-certified organic (NCO), and 8 conventional (C) farms. On each farm, 10 ewes and 10 female lambs were selecte...