First Product Conditionally Approved For Prevention And Treatment Of NWS

Oct 06, 2025

The Food and Drug Administration (FDA) has conditionally approved a doramectin injectable solution (Dectomax-CA1) made by Zoetis for the prevention and treatment of New World screwworm (NWS) larval infestations in cattle. It also will help prevent reinfestation for 21 days. This conditional approval applies to beef cattle, female dairy cattle less than 20 months of age, pregnant beef cows, newborn calves and bulls.

“Under this conditional approval, the FDA has determined the drug is safe and has a reasonable expectation of effectiveness. We are making this treatment available to cattle producers immediately while the sponsor collects the data needed for a full approval,” said Timothy Schell, acting director of the FDA’s Center for Veterinary Medicine.

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Video: Reducing Nursery Feed Costs Without Losing Performance - Dr. Julian Arroyave

In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Julian Arroyave, a research swine nutritionist at Carthage Innovative Swine Solutions, discusses nursery feed budget strategies designed to reduce costs without compromising pig performance. He explains trials comparing high, medium, and low phase 1 and phase 2 feed budgets, including commercial validation data showing improved income over feed cost when lower-budget programs were applied under healthy herd conditions. Listen now on all major platforms!

Click here to read the full research article: https://academic.oup.com/tas/article/...

"Results showed that the low-budget program increased income over feed cost by $1.48 per pig."

Meet the guest: Dr. Julian Arroyave / julian-arroyave-jaramillo-638740129 is a research swine nutritionist at Carthage Innovative Swine Solutions, with experience in nursery nutrition, diet formulation, and commercial research trials. He completed his PhD at Kansas State University and previously worked as a nutrition supervisor at Kekén in Mexico. His work focuses on nutritional strategies that improve production efficiency while controlling feed costs. Learn more from Dr. Julian Arroyave Jaramillo on The Swine Nutrition Blackbelt Podcast, available on all major platforms.