Put Your Deworming Dollar to Work

June 1, 2010 - Don’t overlook deworming this spring — timely application of parasite control before turnout can help maximize producers’ deworming dollar by reducing pasture contamination and helping keep cattle productive.1
Spring is one of the most critical stages for cattle and parasite control,‖ says Gary Sides, cattle nutritionist with Pfizer Animal Health Veterinary Operations. ―Cattle acquire parasites from pastures, and deworming during spring will help reduce future contamination while grazing. Plus, controlling parasites will pay off for producers in gain and overall health.‖
Sides recommends producers think about parasite control when the grass starts to turn green in their area. That’s when parasites become active again. Winter does not kill parasites. In fact, many simply overwinter in the cattle or on pastures.
Deworming during springtime helps break the cycle of pasture contamination and cattle infection,‖ Sides says. ―Spring is also a critical stage for growth and development in cattle. Parasites can slow cattle down during this important time.‖
Parasites can be responsible for depressed immune systems, making cattle more susceptible to disease challenges. In addition, parasites can suppress appetites, limiting intake and absorption of nutrients — ultimately reducing feed efficiency, gain and even reproduction.1
In addition to timing, producers should ensure their dewormer gets the most important parasites in their area — for instance Ostertagia ostertagi or brown stomach worm. A broad-spectrum dewormer like DECTOMAX® Injectable (doramectin) treats and controls brown stomach worms for up to 21 days. Plus, DECTOMAX is safe for pregnant cows, newborn calves and bulls.2 
Don’t overlook calves when deworming, Sides says. Calves without immunity to parasites are most vulnerable, and deworming both cows and calves can help ensure strong weaning weights.
If you’re planning to precondition calves, protocols often include parasite control and for good reason,‖ Sides says. ―Parasite control can help you not only manage the parasite contamination on your pasture, but also – in combination with a good preconditioning program – produce healthier, stronger calves that are ready to earn producers more at sale day.‖
For more information, contact: 
Jennifer Ryan
Bader Rutter
(970) 689-3385
Important Safety Information: DECTOMAX Injectable has a 35 day pre-slaughter withdrawal period. Do not use in dairy cows 20 months of age or older. DECTOMAX has been developed specifically for cattle and swine. Use in dogs may result in fatalities. 
Prescribing Information  
1 Corwin RM and Randle RF. Common internal parasites of cattle. University of Missouri Extension. October 1993. Accessed Feb. 26, 2010. Available at: http://extension.missouri.edu/publications/DisplayPub.aspx?P=G2130.
2 DECTOMAX Injectable Product Label.
All brands are the property of Pfizer Inc., its affiliates and/or its licensors. ©2010 Pfizer Inc. All rights reserved. DMX10003 



Mon–Fri, 8:30am–6:30pm ET

This site is intended for U.S. Animal Healthcare Professionals. The product information provided in this site is intended only for residents of the United States. The products discussed herein may not have marketing authorization or may have different product labeling in different countries. The animal health information contained herein is provided for educational purposes only and is not intended to replace discussions with an animal healthcare professional. All decisions regarding the care of a veterinary patient must be made with an animal healthcare professional, considering the unique characteristics of the patient.

All trademarks are the property of Zoetis Services LLC or a related company or a licensor unless otherwise noted. ©2022 Zoetis Services LLC. All rights reserved.