Methods for egg counts and larval cultures for strongyles infesting the gastro-intestinal tract of cattle

The method for egg counts is a modification of the Whitlock-Gordon technique for sheep strongyles and has been developed for low-plane infestations. It uses a three-gram faecal sample and an egg-counting slide of four 0.5-ml. cells. Satisfactory larval cultures are obtained by mixing dry, sterile cattle dung with the fresh faeces. A modified Baermann technique is used for recovering larvae from cultures.