Assessment of the evolution of the proportion of respiratory and enteric pathogens and diseases in pre-weaned unvaccinated dairy heifers from Québec, Canada
In their first two weeks of life, 18% of unvaccinated dairy heifers had respiratory issues and 23% had diarrhea. At 4 to 8 weeks, respiratory issues increased significantly to 62%, while diarrhea decreased to 13%.
Dec 1, 2021