| the trichostrongyloid parasites of sheep in south australia and their regional distribution. | the species of trichostrongyloid nematodes present in 376 sheep from different agricultural regions of the state of south australia were determined. parasites encountered in the abomasum were teladorsagia circumcincta, t. trifurcata, t. davtiani, camelostrongylus mentulatus, haemonchus contortus and trichostrongylus axei. t. circumcincta was the species most commonly encountered, but c. mentulatus was widespread in arid areas. h. contortus was present in a small number of sheep only, mainly in s ... | 1982 | 7168719 |
| effects of challenge with trichostrongylid nematode larvae on immunologically resistant grazing yearling sheep in south australia. | paddocks near gawler, south australia, were grazed by newly weaned sheep which received either no anthelmintic treatment, regular 3-weekly treatment or a single treatment in february. a decline in the faecal egg count of untreated sheep in autumn associated with the ingestion of infective larvae indicated that the sheep had developed a resistance to reinfection. at the end of the experiment, 10 sheep were experimentally infected with trichostrongylus vitrinus larvae to demonstrate this resistanc ... | 1991 | 1858285 |