Abattoir survey was carried out to determine the prevalence of gastrointestinal helminths and the seasonal fluctuations in intestinal worm burdens and faecal worm egg counts of camel in Khorasan Razavi province in the northeast of Iran. A total of 306 dromedaries (Camelus dromedarius) in the Mashhad abattoir, in the northeast of Iran and the capital of Khorasanprovince were examined between Oct...

The aim of the present study was to investigate the potential benefits of grazing lactating ewes and their lambs on chicory (Cichorium intybus). Fifty-six certified organic twin-rearing ewes were either drenched with an anthelmintic or not, within 2 days after parturition and were grazed upon either grass/clover or chicory pastures. Around 12 weeks after parturition a subset of 12 lambs per tre...

A study on the influence of gastrointestinal trichostrongyles on ram fertility was performed. Two groups of semen donor rams (Sarda breed) were utilized; one was experimentally infected with Haemonchus contortus, Trichostrongylus colubriformis and Teladorsagia circumcincta and the other was used as a control group. In all animals, coprological, haematological and reproductive parameters were st...

Trichostrongylus axei and T. colubriformis infective third-stage larvae were frozen and stored for varying periods at -170 C: 10 to 80 days for T. axei and 10 to 38 days for T. colubriformis. Thawed, surviving larvae were used to infect rabbits. Survival percentages changed little between worms stored for the period of the test. Larvae surviving freezing, storage, and thawing were as infective ...

The prevalence of gastric nematodes in 151 goats on Grand Canary Island is around 56%, with a mean burden of 691 worms/animal. No significant differences of prevalence and intensity were found between the four isoclimatic areas of the island [dry-desert (DD); dry-steppe (DS); temperate-mild (TM); temperate-cold (TC)]. Five nematode species were identified, the most commonly-occurring being Tela...

An understanding of how genes move between and within populations of parasitic nematodes is important in combating the evolution and spread of anthelmintic resistance. Much has been learned by studying mitochondrial DNA markers, but autosomal markers such as microsatellites have been applied to only a few nematode species, despite their many advantages for studying gene flow in eukaryotes. Here...

ROCHA, R.A.; ROCHA, G.P.; BRICARELLO, P.A.; AMARANTE, A.F.T. [Recovery of Trichostrongylus colubriformis infective larvae from three grass species contaminated in summer]. Recuperação de larvas infectantes de Trichostrongylus colubriformis em três espécies de gramíneas contaminadas no verão. Revista Brasileira de Parasitologia Veterinária, v. 17, n. 4, p. 227-234, 2008. Departamento de Parasito...