A survey of Abomasal Nematodes of Japanese Black Cattle in Kagoshima, Japan

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  • 鹿児島地区の黒毛和種牛における第四胃寄生線虫感染状況
  • カゴシマ チク ノ クロゲワシュ ウシ ニ オケル ダイ4イ キセイ センチュ

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Abstract

From August 1992 to July 1994, Japanese Black Cattle reared in Kagoshima area were surveyed for abomasal nematodes at autopsy. The worms were detected in 55 of 143 cases (38.5%), and 40 (28.0%) had parasitic nodules in the abomasal mucosa. The prevailing species were Ostertagia ostertagi (36.4%), Mecistocirrus digitatus (7.0%), Haemonchus contortus (2.8%), Trichostrongylus axei (3.5%), T. colubriformis (0.7%), Nematodirus helvetianus (1.4%), and Cooperia sp.(1.4%). The rate of parasitism was lower in the winter season and was higher in the aged cattle.-

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