Would be good to have more manufacturers if you are supporting the world...Bright Raven":101i19e9 said:The manufacturer of Ivomec had a manufacturing break down. It has been fixed but there is a worldwide backorder.
Stocker Steve":1a9ar6y3 said:
JW IN VA":1rqi6t2h said:I use Valbazen on calves but not on cows because of the possible effects on early stages of pregnancy.On them,I use Synanthic on years when I'm switching classes of wormers.
Eternals can be easily addressed with Ultra Boss,Sabre or a synergized generic pyrethroid.
I'm am not saying the OP is doing this but I've read where using one of the"mectrins for external control only may contribute to an eventual resistance to the drug.The fly tag users have found this out.One suggestion I have read is use organophosphate tags for three years then use a next gen pyrethroid for one.
We used to use a lot of fly tags but they got expensive and,for me, the back rubs do well.Or a spray every two weeks or so
Stocker Steve":3asy4o0t said:
Enjoyed the article. We go at it a little differently and only worm cattle under 3 YO and not real often. Seems to help identify the "wimpy cattle" quickly for the ride to the barn. I sometimes wonder if it would not be better to manage the cattle like the sheep and have a zero worm policy in the breeders and only worm to have survivors to go to the meat market along with the parents. Seems to have been good. Culling to get to this point was an expense. But part of it.Chocolate Cow2":l6fnd5n2 said:This is a good article on wormers and resistance.
https://www.bovinevetonline.com/article ... -resources
Ebenezer":1ivg5c9c said:I still wonder what the deal will be in 10 years when the parasites are resistant to the 2 dewormer combination? It will happen and would seemingly will make them more difficult to deal with. Thanks.
Ebenezer":v9ein3s0 said:I still wonder what the deal will be in 10 years when the parasites are resistant to the 2 dewormer combination? It will happen and would seemingly will make them more difficult to deal with. Thanks.