MidAmerica Ag Research

01/31/2026

https://www.linkedin.com/posts/avma_fda-approves-first-generic-fenbendazole-oral-activity-7420571227888590848-Et2E?utm_source=share&utm_medium=member_android&rcm=ACoAAANV8XgBuKB74_AWB4I_j0XEBfkDPZuTMUY

Awesome news for the US livestock industry!! After 43 years, we finally now have a generic fenbendazole called Defendazole. The product will provide the American livestock industry another option of an excellent dewormer not controlled by one company.

The U.S. Food and Drug Administration has approved Defendazole (fenbendazole) oral suspension to treat and control various species of lungworms, stomach worms and intestinal worms in beef and dairy cattle, and to treat and control two species of stomach worms in goats. Defendazole contains the same....

01/29/2026

01/21/2026

The Barber Pole worm (Haemonchus) in sheep, goats and alpacas, small strongles (Cyanthostomes) in horses and donkeys, and the Brown Stomach (Ostertagia) in cattle all undergo an inhibited phase in the gut wall. When parasite worm burdens build to high levels while grazing parasite contaminated summer pastures, newly acquired parasites often stop development in the gut wall as a protective mechanism for both the parasites and their host animals (it is not in the best interest for these parasites to kill their host animals because they die with their host). These inhibited larvae are embedded in the gut tissues and can remain in this state for months plus they are refractory to normal deworming practices. As temperatures decline when winter approaches and the old worm parasites die off, the conditions in the gut begin to improve triggering the inhibited larvae to start redevelopment, growing into egg-laying adult parasites attached to the gut wall ready to seed the spring pastures. F***l worm egg counts conducted in midwinter will determine whether these inhibited larvae have emerged and are shedding eggs. These emerging larvae can also cause clinical disease in the host animals while ensuring immediate recontamination of the spring pastures. We often find equine and small ruminant samples with counts over 1000 worm eggs/sample during this late winter period. Monitoring your animals’ f***l worm egg counts will alert you to this problem and determine whether treatment is necessary! Go to www.midamericaagresearch.net for complete instructions.

01/18/2026

2026 Lab update

01/13/2026

For yearling cattle, sheep and goats, a common parasite affecting their health in the wintertime is Nematodirus. This parasites winds through the small intestine and strips the intestinal wall reducing nutrient absorption. A quick f***l worm egg count will determine if this parasite is present in your herd!

01/08/2026

Wintertime is one of the best times to conduct a f***l worm egg count on your livestock. Parasite-free livestock over-winter better than wormy-livestock and are not immediately shedding worm-eggs on spring pastures. Go to www.midamericaagresearch.net to download a submission form and get detailed instructions on how to sample and send in samples.

12/30/2025

John Hopkins University discovered that Fenbendazole used in mice for pinworm control prevented brain tumors in 2011. Shortly thereafter mebendazole was taken off the market but came back five years later 80x more expensive. You have to love Big Pharma!!

12/28/2025

https://x.com/nichulscher/status/2004932811921523108?s=42

12/18/2025

Working with Mexican producers on parasite control strategies!

07/01/2025

Worm-free cattle outperform wormy cattle. Every pound lost to parasites now equals the total cost to deworm. A frequent f***l worm egg count exam could save most operations thousands of dollars!

04/07/2025

What a crappy day...

At MidAmerica Ag Research, we hope everyday is a crappy day! If not, that means we are not helping you get the most out of your animals with an effective deworming strategy!

Peak season is officially here and current package delivery times are listed below. Please keep and check tracking numbers as transit times seem to be increasing. Lastly, daily volume is highest at the end of the week (Thur/Fri) as packages arrive from across the nation. If you are looking for results by a certain time, please reach out to Pat to coordinate delivery.

Current Delivery Times
US Mail: 1pm – 3pm
UPS Next Day Air: 10:30am
UPS Ground, 2nd Day, Next Day Saver: 3:30pm - 5pm
FEDEX: 4pm

For additional information, recommended treatment protocols or submission forms please visit www.midamericaagresearch.net.

As always, we appreciate your business!

02/25/2025

“Spring has sprung so send us your dung” and “let science dictate your deworming decisions.” Keep your animals of all species safe from gastro-intestinal parasites in 2025!!

Now is the perfect time to “cut the link” between last year’s parasite infections through a proper deworming thereby preventing a build-up of new parasites on this year’s summer pastures.

Go to: www.midamericaagresearch.net to get detailed instructions on how to sample your animals and send in their f***l samples for quick and accurate testing. Your animals will thank you!!