Abstract:
The post-calving period is a critical time in
a cow’s life. The first few weeks post-calving
pose the highest risk period for a number of
diseases including milk fever, mastitis, metritis,
pneumonia, retained fetal membranes, ketosis,
and displaced abomasum. Post-calving
diseases adversely affect dry matter intake,
peak milk production, and reproductive performance,
in addition to increasing the risk of
involuntary culling and death. Consequences
of disease can be costly. The ideal strategy is
to minimize losses associated with disease by
preventing their occurrence. However, even
with the best management practices in place, it
is impossible to prevent all post-calving diseases.
For cows that develop post-calving diseases,
the challenge is to minimize losses by
developing a strategy to identify them as early
as possible, implementing effective treatment
protocols, evaluating effectiveness of those
protocols, and tracking incidence so preventive
practices can be re-evaluated when the
incidence exceeds a threshold level for an individual
disease. A “fresh cow program” is an
effective approach to systematically managing
post-calving disease by close daily observation
of cows during the first 10 to 14 days after
calving. By conducting a brief, but systematic
physical examination, including monitoring
body temperature, disease can be identified
as soon as possible and treatment protocols
implemented. This approach minimizes
losses associated with post-calving disease.