Ivermectin Alternatives

Cattle problems.
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Ivermectin Alternatives

Post by Randi » Mon Jan 07, 2019 11:27 am

So give me some options, this is the second year we've had issues with the cows scratching like crazy after they've been poured with ivermectin. After last year's issues, we did them with Boss pour on. This year I was sceptical about using ivermectin again, but DH wanted to use it again.

So now, I think we are going to put out cattle scratchers with backrubber concentrate rather than run them all through the chute again.

But, for next year, what are the options out there? And for baby calves in the spring(we give them a shot of the injectable)for worms?



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Re: Ivermectin Alternatives

Post by Bright Raven » Mon Jan 07, 2019 11:36 am

I like valbazen for calves. It is broad spectrum including flukes. It is easy to drench them. It will not treat ticks or lice and other ectoparasites. Regarding cows, I have never observed any reaction from the pour on parasiticides that are in the Ivermectin family. I use Eprinex which employs eprinomectin which is in the ivermectin family.

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Re: Ivermectin Alternatives

Post by Randi » Mon Jan 07, 2019 11:40 am

It's not a reaction to the ivermectin, but that it doesn't seem to be working.

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Re: Ivermectin Alternatives

Post by Randi » Mon Jan 07, 2019 11:41 am

Calves also get dosed with Meloxicam oral at branding, so I wonder if the 2 drugs would be ok to use together?

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Re: Ivermectin Alternatives

Post by Bright Raven » Mon Jan 07, 2019 11:47 am

Randi wrote:It's not a reaction to the ivermectin, but that it doesn't seem to be working.


Pour on parasiticides must be applied in strict adherence to the instructions. The primary reason for poor performance is poor application.

How do you know that it does not work? Are you taking fecal samples?
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Re: Ivermectin Alternatives

Post by Randi » Mon Jan 07, 2019 11:53 am

I'm not sure that a fecal would show that we have a lice problem.

As far application goes...we've only been applying pour on parasiticides for over 20 years without issue....

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Re: Ivermectin Alternatives

Post by Till-Hill » Mon Jan 07, 2019 12:00 pm

Cydectin does not work either for lice. We have been feeding safegaurd and pouring with boss last few years. These warm winters really get these cattle scratching!

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Re: Ivermectin Alternatives

Post by Bright Raven » Mon Jan 07, 2019 12:05 pm

Randi wrote:I'm not sure that a fecal would show that we have a lice problem.

As far application goes...we've only been applying pour on parasiticides for over 20 years without issue....


Sorry. I thought ivermectin was not working for any of the parasites. I use Eprinex and the eprinomectin is a newer compound of ivermectin. I can tell you, I have no lice.
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Re: Ivermectin Alternatives

Post by Randi » Mon Jan 07, 2019 12:19 pm

I'm not sure if it is or is not working for internal parasites. I'm just suspicious as it seems the lice have developed a resistance to it. And we are not the only ones in our area that have been having issues with ivermectin for lice.

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Re: Ivermectin Alternatives

Post by Bright Raven » Mon Jan 07, 2019 12:46 pm

Randi wrote:I'm not sure if it is or is not working for internal parasites. I'm just suspicious as it seems the lice have developed a resistance to it. And we are not the only ones in our area that have been having issues with ivermectin for lice.


There are resistance issues with ivermectin. It has been around since 1975.
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Re: Ivermectin Alternatives

Post by Randi » Mon Jan 07, 2019 1:15 pm

Bright Raven wrote:
There are resistance issues with ivermectin. It has been around since 1975.


Yeah, this is kinda what I'm thinking..

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Re: Ivermectin Alternatives

Post by Lucky » Mon Jan 07, 2019 3:54 pm

Just wait for it to rain a time or two and the lice will be gone. Only way I controlled lice was to dpray the cows with a weed sprayer. It was a real pain.

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Re: Ivermectin Alternatives

Post by boondocks » Mon Jan 07, 2019 11:43 pm

Lucky wrote:Just wait for it to rain a time or two and the lice will be gone. Only way I controlled lice was to dpray the cows with a weed sprayer. It was a real pain.


Mine (well, my cows') seems to get worse with cold rainy weather?

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Re: Ivermectin Alternatives

Post by boondocks » Mon Jan 07, 2019 11:45 pm

Randi wrote:
Bright Raven wrote:
There are resistance issues with ivermectin. It has been around since 1975.


Yeah, this is kinda what I'm thinking..


Do yours usually get ringworm? If so, I was wondering if you were seeing resistance there as well; maybe that would be more apparent than resistance re lice.
We have never treated for lice until this winter. They got a good dose of Eprinex in late Nov. So far they look better but the next month will tell the tale.

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Re: Ivermectin Alternatives

Post by Randi » Mon Jan 07, 2019 11:57 pm

Lucky wrote:Just wait for it to rain a time or two and the lice will be gone. Only way I controlled lice was to dpray the cows with a weed sprayer. It was a real pain.
,

Well...being tat its January, and I'm in Canada, I'm not going to hold my breath on much rain for at least 2 months... Lol. Hopefully the weather's better than last year or they're going to suffer for a long time...

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