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...

The resistance of gastro-intestinal nematodes of small ruminants (sheep and goat) to benzimidazole anthelmintic drugs seems to be linked primarily to a single mutation in the isotype 1 b-tubulin gene. This study was carried out to investigate the origin and diversity of benzimidazole-resistance alleles in trichostrongylid nematodes. We sequenced a 550 bp fragment of the isotype 1 b-tubulin gene...

The hypothesis that increases in the concentration of the anorectic peptide leptin may be responsible for the immune-mediated reduction in feed intake (FI) during gastrointestinal parasitism in sheep was investigated. In a 2 x 2 x 2 factorial design, the first factor was age at the start of infection (5 months old v. 17 months old). The second factor was parasite infection (no infection v. admi...

Twelve lambs, paired on the basis of live weight, were cannulated in the abomasum, in the proximal jejunum approximately 4 m distal to the pylorus and in the terminal ileum. Six were infected with 3000 Trichostrongylus colubriformis and 3000 Ostertagia circumcincta larvae each day for 18 weeks and the remainder were pair-fed to individual infected lambs. All animals were offered ryegrass (Loliu...

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 ...

Resistance to benzimidazole (BZ) anthelmintics is common in ovine nematodes of economic importance. Single nucleotide polymorphisms (SNP) at three positions in the isotype 1 β- tubulin gene have been associated with BZ resistance and molecular tests for the detection of BZ resistance have been developed. In order to determine if such tests are practicable in Ireland the polymorphisms associated...

As the effectiveness of current anthelmintic drenches is being reduced by the emergence of drench resistance and significant production losses may still occur as a result of continuing larval challenge, strategies for nematode control should focus on preventing the build-up of infective larvae on pasture rather than treating the infection. This paper reports the effects of condensed tannins (CT...

The purpose of the research is to study fauna gastrointestinal nematodes sheep in European part Russian Federation. Materials and methods . studies were carried out 2022–2023. objects for sets tracts aged from one 2.5 years, delivered slaughterhouse Moscow region different regions Federation, including Oryol Astrakhan regions, Republic Dagestan Stavropol Krai. After slaughter, 10 taken by rando...

BACKGROUND Gastrointestinal parasites are one of the main restrictions to small ruminant production. Their pathological importance is primarily related to the major production losses, in quantity or quality, induced by the direct action of worms. Control of these parasites is based exclusively on the frequent use of anthelmintic drugs. However, the resistance to anthelmintics in worm population...