منابع مشابه
Frequency of benzimidazole resistance in Haemonchus contortus populations isolated from buffalo, goat and sheep herds Frequência da resistência ao benzimidazol em populações de Haemonchus contortus isoladas de rebanhos de bubalinos, caprinos e ovinos
Anthelmintic resistance is an increasing problem that threatens livestock production worldwide. Understanding of the genetic basis of benzimidazole resistance recently allowed the development of promising molecular diagnostic tools. In this study, isolates of Haemonchus contortus obtained from goats, sheep and buffaloes raised in Brazil were screened for presence of the polymorphism Phe200Tyr i...
متن کاملEFFECTS OF Haemonchus contortus INFECTION ON SODIUM STATUS OF SHEEP EFEITOS DA INFECÇÃO DE Haemonchus contortus SOBRE O STATUS DE SÓDIO EM OVINOS
Eight five-month-old male lambs received a diet with marginal levels of sodium (0.5 g Na/kg DM); four lambs were given a single dose of infective Haemonchus contortus larvae (4,600 L3/ head) and four were kept uninfected. The lambs were slaughtered 30 days after the infection. Sodium concentration was determined in the abomasal fluid at the slaughter. The balance between intake and faecal excre...
متن کاملImmunological responses of sheep to Haemonchus contortus.
Infections with Haemonchus contortus are a major constraint on ruminant health world-wide. Young lambs are very sensitive to Haemonchus infection. Older lambs and sheep acquire immunity after a continuous or seasonal exposure to the parasite. The mechanisms underlying immunity are still not completely understood. Antibodies, in particular local IgA and IgE, certainly play a role. The role of Ig...
متن کاملPredatory activity of Butlerius nematodes and nematophagous fungi against Haemonchus contortus infective larvae Atividade predatória de nematóides Butlerius e fungos nematófagos contra larvas infectantes de Haemonchus contortus
The purpose of this study was to evaluate the predatory activity of the nematode Butlerius spp. and fungal isolates of Duddingtonia flagrans, Clonostachys rosea, Arthrobotrys musiformis and Trichoderma esau against H. contortus infective larvae (L3) in grass pots. Forty-eight plastic gardening pots containing 140 g of sterile soil were used. Panicum spp. grass seeds (200 mg) were sown into each...
متن کاملLectin, hemolysin and protease inhibitors in seed fractions with ovicidal activity against Haemonchus contortus Lectina, hemolisina e inibidores de protease em frações de sementes com atividade ovicida contra Haemonchus contortus
Bioactive molecules of plant species are promising alternatives for the chemical control of gastrointestinal nematodes in ruminants. Extracts of native and exotic seed species from Brazil’s semi-arid region were tested in vitro in an egg hatch assay and the bioactivity of their proteins was investigated. Each seed species was subjected to three extractions with three types of solvents. All the ...
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ژورنال
عنوان ژورنال: Pubvet
سال: 2019
ISSN: 1982-1263
DOI: 10.31533/pubvet.v13n9a418.1-4