So my B.O. Just texted me the attached photo of that massive worm, and told me it, and one other, had come out of my boy today. I am a bit worried.
I bought Jingle off a ranch in the summer that didn't deworm, and when they did it was with pour-on cattle dewormer ... sigh... great... I dosed him with Ivermectin the minute I got my hands on him in July, but he was still around plenty of non-dewormed horses, and had tons of bot eggs on him which I would scrape off every single day.
When he arrived at my barn, my BO dewormed him again (September), and he was dewormed again on Monday. She found those worms today.
Anyway, I'm a little worried... She says I shouldn't be, but she also mentioned that's the largest worm she's seen. He's already been dosed three times, and clearly these worms are persistent, as every horse in my barn is regularly dewormed together on schedule. These worms are massive, and i'm worried about the increase chance of him colicing due to his worm count.
My question is - what should I do? It was suggested I panacur him, give him 5 rounds to flush the parasites out, but I worry about the high amount of chemicals in his body. I also know a lot of people have moved away from rotational deworming and now send their horses fecal samples in to get specific reads on the types of parasites they have? Is this effective/expensive/etc.?
Any advice would be appreciated.