Publications
| a bulk tank milk survey of ostertagia ostertagi antibodies in dairy herds in prince edward island and their relationship with herd management factors and milk yield. | the objective of this study was to quantify the relationship of the levels of antibodies to ostertagia ostertagi in bulk-tank milk samples from prince edward island (pei) dairy farms to milk production and to herd-management practices potentially related to gastrointestinal nematode infections. the milk samples were obtained from 289 to 322 dairy farms during 2000; production and management data were available from 197 and 200 farms, respectively. cow exposure to pasture and whole-herd anthelmin ... | 2002 | 12058571 |
| a longitudinal study of gastrointestinal parasites in canadian dairy farms. the value of an indirect ostertagia ostertagi elisa as a monitoring tool. | the general objective of this study was to evaluate a crude ostertagia ostertagi antigen enzyme-linked immunosorbent assay (elisa) for monitoring gastrointestinal parasites in lactating dairy cattle. a longitudinal study of gastrointestinal parasites in lactating dairy cows was carried out in 38 herds in four provinces of canada (prince edward island, quebec, ontario and saskatchewan) from september 1999 to october 2000. bulk tank milk, cow milk, serum and fecal samples were collected monthly or ... | 2002 | 12127251 |