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Re: Perserving silage


Kevin -

	Microbial inoculants can be used to help with the ensiling
process but this is not always a clear cut choice. They sometimes improve
the fermentation but with corn silage, the process occurs so quickly that
we often do not see measureable improvements in rates of fermentation. 
Buffered propionic acid products work well too. Low level additions (2-4
lbs/ton) have little effect on fermentation but can improve aerobic
stability. If aerobic stability is a problem, adding a propionic acid
based additive theoretically can improve production if intake was reduced
from spoiled silage.  Treating silage with microbials has also improved
production.  A big difference between the two products is cost (prop being
more expensive).

	Adding high levels of acetic (or lactic acid) is not economical.
I'm not sure that I understood your last question but generally production
of large amounts of CO2 is undesirable since it represents a loss of dry
matter. 

	To make good silage, first make sure that you are following all
the suggested management practices (e.g. sharp knives, correct moisture,
good packing, chop length, sealing, feed out, etc.).

	I hope this helps.

*********************************************************************
Limin Kung, Jr., Ph.D.                 phone:302 831 2522
Associate Professor                    fax:  302 831 3651
Dept. of Animal Sci. & Agric. Biochem. email: lkung@udel.edu
Ruminant Nutrition and Microbiology     (__)
University of Delaware                  (oo)DRINK MILK OR \
Newark, Delaware 19717-1303              \/ BECOME EXTINCT \
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