Biology, Epidemiology, and Control of Gastrointestinal Nematodes of Small Ruminants

Strongylid gastrointestinal nematodes are an important cause of disease and economic loss in small ruminants. These parasites are important in most of the United States, with the bloodsucking parasite Haemonchus contortus being the predominant species of concern. Sheep and goats are infected while g...

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Bibliographic Details
Published inThe Veterinary clinics of North America. Food animal practice Vol. 36; no. 1; p. 73
Main Authors Zajac, Anne M, Garza, Javier
Format Journal Article
LanguageEnglish
Published United States 01.03.2020
Subjects
Animals
Anthelmintics - administration & dosage
Gastrointestinal Tract - parasitology
Goat Diseases - drug therapy
Goat Diseases - epidemiology
Goat Diseases - parasitology
Goat Diseases - prevention & control
Goats
Nematoda - isolation & purification
Nematode Infections - drug therapy
Nematode Infections - epidemiology
Nematode Infections - prevention & control
Nematode Infections - veterinary
Sheep
Sheep Diseases - drug therapy
Sheep Diseases - epidemiology
Sheep Diseases - parasitology
Sheep Diseases - prevention & control
Anthelmintics
Nematodes
Haemonchus contortus
Trichostrongyles
Combination treatments
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Summary:Strongylid gastrointestinal nematodes are an important cause of disease and economic loss in small ruminants. These parasites are important in most of the United States, with the bloodsucking parasite Haemonchus contortus being the predominant species of concern. Sheep and goats are infected while grazing, and the biology of infective larvae on pastures is important in the design of parasite management programs. Widespread resistance to anthelmintics requires strategies designed to preserve remaining drug activity; these include combination treatments with multiple classes of anthelmintics and targeted treatments.
ISSN:1558-4240
DOI:10.1016/j.cvfa.2019.12.005