Trichuriasis in Piglets from Compost Contaminated with <i>Trichuris suis </i>Eggs

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  • 豚鞭虫卵に汚染された堆肥による子豚の豚鞭虫症の発生事例
  • ブタ ベンチュウラン ニ オセン サレタ タイヒ ニ ヨル コブタ ノ ブタ ベンチュウショウ ノ ハッセイ ジレイ

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Abstract

Trichuriasis was found in piglets at a simple nursery with a paddock on a commercial farrow-to-finish swine farm in Kagoshima Prefecture. There had been a history of trichuriasis on this farm four years ago, when sawdust was used as compost. This nursery was built on a field where the sawdust had been spread. The piglets were being grazed on the paddock for the first time. The EPG of the Trichuris suis eggs was measured in soil samples using the O-ring method. Trichuris suis eggs were recovered from the pig house nursery (600 EPG), two plots on the paddock surface (680 and 800 EPG) and the remaining sawdust from four years ago (160 EPG). Embryonated Trichuris suis eggs were observed in all soil from which eggs were recovered. These observations suggest that this case was caused by the embryonated eggs from four years ago remaining in the soil that had been spread with untreated compost. This report demonstrates the importance of examining the soil of any land piglets have been grazed on for Trichuris suis eggs.

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