Nematode parasitism in adult dairy cows in Belgium.

  title={Nematode parasitism in adult dairy cows in Belgium.},
  author={J Agneessens and Edwin Claerebout and Pierre Dorny and Fred H M Borgsteede and Jozef Vercruysse},
  journal={Veterinary parasitology},
  volume={90 1-2},
Over a period of 1 year, from November 1997 to October 1998, the abomasa, blood and faecal samples of 121 dairy cows in Belgium were collected and examined for nematode infections. Nematodes were present in the abomasa of 110 animals. Ostertagia was found in all 110, Trichostrongylus was seen in 65 and Haemonchus in 14 abomasa. Overall, 91% of all trichostrongyles recovered were Ostertagia. The geometric mean total number of Ostertagia was 2750, with an average of 74% inhibited early fourth… CONTINUE READING