Publications

occurrence of anthelmintic resistant nematodes on sheep farms in england and goat farms in england and wales.	a survey in 1992 showed that 44 per cent of the sheep farms tested in the south west and 15 per cent of those in the north east of england had parasitic nematode worm burdens which were resistant to benzimidazole anthelmintics, and that 65 per cent of the non-dairy goat farms tested in england and wales had resistant worms. ostertagia circumcincta was the main species in sheep and haemonchus contortus in goats. the resistance to benzimidazoles was diagnosed by a combination of an egg hatch assay ...	1996	8843638
a survey of the trichostrongylid nematode species present on uk sheep farms and associated anthelmintic control practices.	a survey of sheep farms from across the uk was conducted to establish information on farming practices, the trichostrongylid nematode species present and anthelmintic usage. questionnaires and faecal samples were returned from 118 farms. first stage larvae (l(1)) were cultured from faecal samples and used for pcr analysis to determine the presence/absence of selected trichostrongylid species. teladorsagia circumcincta was the only species present on 100% of farms. haemonchus contortus was found ...	2012	22560313