نتایج جستجو برای: h contortus

تعداد نتایج: 531868  

2014
Celia Arroyo-Lopez Foteini Manolaraki Anastasios Saratsis Katerina Saratsi Alexandros Stefanakis Vasileios Skampardonis Nikolaos Voutzourakis Hervé Hoste Smaragda Sotiraki

The aim of the study was to compare the in vivo anthelmintic activity of sainfoin hay (Onobrychis viciifolia) and carob pod meal (Ceratonia siliqua) against gastrointestinal nematodes. Seven days before infection, 64 naive lambs were assigned to four different groups: Group S received sainfoin hay and group CAR was fed with carob pods. The remaining lambs received lucerne hay (Medicago sativa) ...

2016
A. K. Pathak Narayan Dutta K. Sharma

Study was carried out to assess the effect of condensed tannins (CT) containing leaf meal mixture (LMM) on feed intake, body weight changes, parasitic load, urinary excretion of purine derivatives (PD) and microbial protein synthesis (MP) in Haemonchus contortus infected sheep. Eighteen adult male sheep of similar age and body weight (25.03±1.52) were randomly divided into three groups (negativ...

Journal: :Veterinary parasitology 2011
Jill M Squires Jorge F S Ferreira David S Lindsay Anne M Zajac

Haemonchus contortus is a blood-sucking abomasal parasite of small ruminants that is responsible for major losses to producers worldwide. Resistance of this nematode to commercial anthelmintics has produced a demand for alternative control methods. Plants in the genus Artemisia have traditionally been used as anthelmintics and whole plants and plant extracts have demonstrated activity against g...

2018
Gajenathirin Sinnathamby Gemma Henderson Saleh Umair Peter Janssen Ross Bland Heather Simpson

Culture-independent methods were used to study the microbiota of adult worms, third-stage larvae and eggs, both in faeces and laid in vitro, of Haemonchus contortus, a nematode parasite of the abomasa of ruminants which is a major cause of production losses and ill-health. Bacteria were identified in eggs, the female reproductive tract and the gut of adult and third-stage larvae (L3). PCR ampli...

Journal: :Molecular and biochemical parasitology 2006
J K L Eng W J Blackhall M Y Osei-Atweneboana C Bourguinat D Galazzo R N Beech T R Unnasch K Awadzi G W Lubega R K Prichard

Ivermectin resistance is common in trichostrongylid nematodes of livestock, such as Haemonchus contortus. This anthelmintic is the only drug approved for mass administration to control onchocerciasis caused by the nematode parasite, Onchocerca volvulus. In parts of West Africa up to 18 rounds of ivermectin treatment have been administered to communities and there are reports of poor parasitolog...

2017
Victoria Gillan Kirsty Maitland Roz Laing Henry Gu Neil D. Marks Alan D. Winter David Bartley Alison Morrison Philip J. Skuce Andrew M. Rezansoff John S. Gilleard Axel Martinelli Collette Britton Eileen Devaney

Resistance to anthelmintic drugs is a major problem in the global fight against parasitic nematodes infecting humans and animals. While previous studies have identified mutations in drug target genes in resistant parasites, changes in the expression levels of both targets and transporters have also been reported. The mechanisms underlying these changes in gene expression are unresolved. Here, w...

Journal: :Veterinary parasitology 2010
I O Ademola J N Eloff

Parasitic nematodes, especially Haemonchus contortus (Rudolphi), are among the most common and economically important causes of disease in sheep and goats owned by pastoralists and small holder farmers in Africa. The control of these infections relies mainly on the use of anthelmintic drugs. However, herbal preparations are widely used by pastoralists and small holder farmers for the treatment ...

Journal: :Veterinary parasitology 2006
S A Shaik T H Terrill J E Miller B Kouakou G Kannan R M Kaplan J M Burke J A Mosjidis

Infection with gastrointestinal nematodes (GIN), particularly Haemonchus contortus, is the biggest constraint to profitable goat production in the United States (US). Due to widespread prevalence of anthelmintic resistance in goat GIN, alternative, non-chemical control methodologies are needed to increase profitability of small ruminant industries. A study was designed to test the efficacy of a...

Journal: :Buletin Veteriner Udayana 2022

Haemonchus contortus merupakan cacing yang sangat patogenik terutama pada domba dan kambing. Penelitian ini bertujuan: untuk mengetahui persentase perkembangan telur H. menjadi larva stadium pertama media air secara in situ. Perlakuan penelitian diulang sebanyak 5 kali dalam satu kelompok dengan durasi 10 hari setiap menggunakan 8 ekor betina contortus. Sampel sudah dipreparasi kemudian digerus...

Journal: :Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 2011
Alessandro Francisco Talamini do Amarante

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...

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