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FDA Approves Combination Feeding Of Pennchlor, Rumensin To Beef Cattle

FDA Approves Combination Feeding Of Pennchlor, Rumensin To Beef Cattle

The Food and Drug Administration on July 28 approved feeding Pennchlor, which contains chlortetracycline, and Rumensin, which contains monensin, in combination under a veterinary feed directive to beef calves 2 months of age and older and to growing beef steers and heifers fed in confinement for slaughter. The drug sponsor is Pharmgate Inc.

“We are very excited about the opportunity and flexibility this new combination claim provides feedlot operators and cattle producers,” said Ed Seed, vice president of global sales and marketing at Pharmgate Animal Health. “We’ve been working over the past month to make the updated labeling and Veterinary Feed Directive forms available to the cattle feed and veterinary industry and are now working collaboratively to roll this out more broadly.”

Pennchlor and Rumensin are Type A medicated articles to be used in the manufacture of Type B and Type C medicated feeds. See the FDA page regarding recent animal drug approvals for additional indications for this combination and other new approvals.

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Screening Nursery Ingredients - Kynna Crawford

Video: Screening Nursery Ingredients - Kynna Crawford


In this episode of The Swine Nutrition Blackbelt Podcast, Kynna Crawford, Graduate Research Assistant at South Dakota State University, discusses how Plackett-Burman designs can help screen nursery diet ingredients for early post-weaning feed intake. She explains why low intake after weaning contributes to stress and mortality, how screening trials can evaluate multiple ingredients in a single study, and how the approach can support both research and commercial nursery nutrition decisions. Listen now on all major platforms!

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

"A single screening trial can help identify which nursery ingredients deserve deeper research for early post-weaning feed intake."

Meet the guest: Kynna Crawford / kynna-crawford-a2610a3aa is a Master's student in Animal Sciences at South Dakota State University, where her work focuses on swine nutrition and nursery pig management. Her research examines strategies to alleviate weaning stress, including dietary approaches and screening tools to identify ingredients that may promote early feed intake. Learn more from Kynna Crawford on The Swine Nutrition Blackbelt Podcast, available on all major platforms.