Introduction Identification key Trichostrongylus Cooperia Bovine Ostertagia Ovine Ostertagia Haemonchus Nematodirus Bunostomum Oesophagostomum/Chabertia Strongyloides
Ostertagia ostertagi
16 gut cells Head square Sheath tail forms medium cone Length 825-926 µm
Head
Tail
Ovine Ostertagia