Neospora caninum and Milk Production
a Theory Based on a Cornparison of the Effect in Two Populations of Ontario Dairy Herds
Keywords:Neospora caninum, milk production, serology, serostatus, conflicting results
Recent research on Neospora caninum infection in dairy cattle and its effect on milk production has yielded conflicting results, ranging from positive to negative effects. These differences may be related to experimental factors such as study design, sample selection criteria, statistical techniques, or an as-yet undetermined biological effect. While analysing N. caninum serology and milk production data from two distinct samples of Ontario Holstein dairy cows, a different production effect was identified in each sample. The objective of the work reported here was to compare this effect and propose a potential theory explaining the effect of N. caninum serostatus on milk production in these two populations of Ontario cows.