Transcript Feed Delivery Systems

Feed Delivery Systems
Developed by:
Sara Moyer
4/8/01
Is it profitable to
grind, crush, or soak
feed?
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When animals fail to chew grain
thoroughly some of the nutritive
value of the feed is lost because
of reduction of surface area
Fineness of grain – why?
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Should be ground medium fine
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Swine should be ground more finely
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Fine grinding takes more energy
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700 t0 800 microns
Energy is EXPENSIVE
Time and process can make grains less
palatable
Wheat and barley ground to fine can be lost
as dust, or cause digestive problems
Rolling vs Grinding
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Monogastrics
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Rolling grains results in a more uniform
particle size which improves digestibility
Rolling grain is more energy efficient
than using a hammer mill or grinder
Advantage of Pellets
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Less waste
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Less space needed for storage
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Animals may eat more feed in pellet
form
Hay
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Chopping or grinding hay is only
advisable if it encourages animals to eat
coarse, stemmy portions that might
otherwise be left
100% Concentrate
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Is not advisable because of
digestive troubles in animals,
especially ruminants
Cooked Feed
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Advantageous when feeding
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Potatoes
Field beans
Soybeans
Cooking removes factors that cause
poor performance in swine
Cooking does not increase the
digestibility or feeding value of other
feeds
Soaking Feeds
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Advantageous when grain with small or
hard kernels cannot be ground or
crushed
If soaked too long, fermentation may
take place or mold will grow which
produces toxins
Fermenting of Feeds
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Experiments show that this does not
cause any saving in feed or result in
greater production