pour ons are good, i have heard recommendations to use both pour on and injectable and rotate them every other use. also that if you use the same brand to long there is a resistance problem. good adice to ask someone who is familiar with use.
> Pour on wormers have the same
> efficiency has other types of
> wormers and are much much easier
> to use. You dont have to worry
> about using needles and syringes
> and the cattle dont have to be
> completely confined to use it.
> However, there are great
> variations in effectiveness
> between types and brands of pour
> on wormers. Always consult a
> veterinarian before deciding which
> type and/or brand to use.