The Rural Voice, 2019-01, Page 51 He recommended treating cows
with a scour vaccine at seven to eight
months gestation to pass that
immunity down to their calf. Scour
vaccines cause the cow to enrich her
colostrum and protect the calf against
rotovirus, coronavirus and e-coli
infections.
Besides improving colostrum
quality, a scours vaccine reduces the
rate and severity of scours. It
decreases the mortality risk of calves.
Also, it decreases the pathogen load
in the environment.
“Scour vaccines do need to be
used with good colostrum
management,” advised Dr.
Gutteridge.
Both speakers agreed that given
the dramatic effects poor colostrum
management and respiratory disease
(see story next month) can have on
lactation later in life, that these
compromised calves should be
fattened and sold for meat. Dairy
farmers would be wise to record their
calves’ health status to make wise
culling decisions. ◊
January 2019 47
Advice
Dalia Hopcraft
519-364-2523
Ag Account Manager
Southwestern Agriculture West
Harrison Todd
519-364-2358
Ag Account Manager
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