Salt poisoning in beef cattle on coastal pasture on Prince Edward Island.

著者: Van Leeuwen, J A
出版事項 1999

A survey of demographics and information demands of dairy producers.

著者: VanLeeuwen, J A, Keefe, G P
出版事項 2001

Neospora then and now: prevalence of Neospora caninum in Maritime Canada in 1979, 1989, and 1998.

著者: Keefe, G P, VanLeeuwen, J A
出版事項 2000

Evaluation of the reliability and repeatability of automated milk urea nitrogen testing

著者: Arunvipas, P., VanLeeuwen, J. A., Dohoo, I. R., Keefe, G. P.
出版事項 2003

Bulk tank milk urea nitrogen: Seasonal patterns and relationship to individual cow milk urea nitrogen values

著者: Arunvipas, P., VanLeeuwen, J.A., Dohoo, I.R., Keefe, G.P.
出版事項 2004

Risk factors associated with cows’ lying time, stall and cows’ own cleanliness in smallholder dairy farms in Kenya

著者: Kathambi, E. K., VanLeeuwen, J. A., Gitau, G. K., Kamunde, C.
出版年 Vet World (2019)

Seroprevalence of infection with Mycobacterium avium subspecies paratuberculosis, bovine leukemia virus, and bovine viral diarrhea virus in maritime Canada dairy cattle.

著者: VanLeeuwen, J A, Keefe, G P, Tremblay, R, Power, C, Wichtel, J J
出版事項 2001

Effects of Calliandra and Sesbania on Daily Milk Production in Dairy Cows on Commercial Smallholder Farms in Kenya

著者: Makau, D. N., VanLeeuwen, J. A., Gitau, G. K., McKenna, S. L., Walton, C., Muraya, J., Wichtel, J. J.
出版年 Vet Med Int (2020)