In calves you don’t give glucose alongside milk as it clots in the abomasums therefore reducing absorption. It is not as critical in the piglet, as often, if you don’t rehydrate, the piglets will die anyway.
Colostrum
is essential in the first 0-6 hours of life as it is a source of energy and
immunity. Electrolytes have a place in controlling/reversing dehydration,
particularly where there is scour. Glucose solutions should not be used
as a routine management tool as the piglets will drink it (it is easier to drink
this than to suckle and it tastes good too) and be satisfied, and so don’t then
suckle.
It is far
more important that colostrum intake is managed in the first 12 hours of life.
Additional fluids are needed if the sow is unable to feed the piglets – ideally
milk replacer. Any replacement fluids MUST be fresh and replaced
regularly.
If you
have the choice between giving colostrum/milk or glucose then it has to be the
former, however if the piglets are at the point of death from dehydration then
give them glucose. The issue with glucose clotting/breaking up milk is still a
debatable point.
More
information about colostrum can be found in the Action for Productivity
factsheet number 17 which can be downloaded
here.