background: haemonchus contortus causes severe economic losses in small ru-minants, so this study was conducted to study the uv effect on h. contortus larvae and its protective effect. methods: sixteen male goats were divided into 5 groups, control infected, con-trol uninfected and uv 30minutes exposure; uv 60minutes exposure and uv booster 60minutes exposure. the uv groups were exposed to uv i...

The study of electrophoretic pattern of Haemonchus contortus has proved to be an important tool for vaccine designing. The aim behind the review is to encourage young researchers to initiate work on this aspect. Disease biomarker discovery is generally carried out using two dimensional polyacrylamide gel Electrophoresis (2D-PAGE) to identify differences in the protein expression patterns. After...

A strain of Haemonchus contortus from the Pietermaritzburg district of Natal was found to be resistant to levamisole (geometric mean efficacy 76.5%), morantel (41.9%), the benzimidazoles (oxfendazole: 33.7%) and rafoxanide (82.0%), but apparently fully susceptible to closantel and disophenol. In the case of ivermectin, a mean of 5.2% of the H. contortus was not removed at a dosage of 200 microg...

Parasitic gastroenteritis caused by Haemonchus spp. is a major cause of economic losses in the livestock industry because it impairs weight gain and increases mortality in cattle and small ruminants, especially in tropical and subtropical areas. The proper identification of the various species, as well as knowledge regarding the epidemiology of parasitic gastroenteritis, is essential for the es...

A study was carried out to determine the prevalence, species composition and worm burden of abomasal nematodes of small ruminants of Ogaden region slaughtered at Elfora export abattoir. A total of 196 abomasums of animals (114 sheep and 82 goats) were examined according to standard procedures. An overall prevalence rate of 91.2% and 82.9% Haemonchus species was recorded in sheep and goats, resp...

in this report, β-tubulin gene polymorphism was investigated in haemonchus contortus  populations isolated from sheep flocks in different regions of khouzestan province, southwestern iran. the samples were chosen on the basis of regional variation in benzimidazole treatment background of sheep flocks. our objective was to study the relationship between treatment background andβ -tubulin gene po...

This work was to survey gastrointestinal parasites of cattle and goat slaughtered at Trans Amadi abattoir in Port-Harcourt. A total of 100 faecal samples of the ruminants were examined comprising of 50 cattle and 50 goats. Formol-ether concentration technique was used for sample analyses and examined with microscopically. The data obtained were subjected to simple statistical analysis using per...

Haemonchus populations were collected from cattle from mid-western and eastern Southern US (four and six populations, respectively) to determine the relative prevalence of Haemonchus contortus and Haemonchus placei and the frequency of the three isotype-1 β-tubulin polymorphisms associated with benzimidazole resistance. A minimum of 32 individual adult worms were genotyped at position 24 of the...

Worm-free Merino yearlings were dosed with either a mixture of infective larvae of Trichostrongylus axei and Ostertagia circumcincta or with O. circumcincta only, and challenged 90-93 days later with infective larvae of Haemonchus contortus. Neither of these methods protected sheep against challenged and slight protection was afforded sheep predosed with T. axei and O. circumcincta and challeng...