Assessment of gastrointestinal nematode infection,anthelmintic usage and husbandry practices on two small-scale goat farms in Malaysia |
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| Authors: | Flora Wong Neil Sargison |
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| Institution: | 1.University of Edinburgh, Royal (Dick) School of Veterinary Studies, Easter Bush Veterinary Centre,Midlothian,UK |
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| Abstract: | Haemonchosis is a common problem on goat farms in tropical countries such as Malaysia. Prevention of production losses generally depends on the use of anthelmintic drugs, but is threatened by the emergence of anthelmintic resistance. This study investigates anthelmintic efficacy on small-scale Malaysian goat farms and describes putative risk factors. Adult goats had moderate to high pre-treatment faecal trichostrongyle egg counts, despite being housed on slatted floors and fed on cut-and-carry forage, raising questions about the source of nematode infection. Our results show multiple resistance to benzimidazole and macrocyclic lactone anthelmintic drugs and allow us to discuss the genetic origins of resistance with reference to farm husbandry and management. We conclude that improvement in Malaysian goat production efficiency will require the development of sustainable helminth control strategies, underpinned by a better understanding of the origins and population genetics of anthelmintic resistance. |
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