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When deworming cattle, the goal is to outsmart the worms, says Dan Cummings, a veterinarian and cattle deworming expert for Boehringer Ingelheim. Like any other organisms, parasites can adapt and become resistant to available dewormer drugs. A university survey in Georgia found that 11 out of 12 cattle farms had resistant worms, he says.
Resistance develops when a parasite management program leaves surviving worms behind after treatment. They become a challenge to control in following seasons. Poor management practices and product selection can speed up resistance development. For instance, repeated use of the same class of dewormer at incorrect dosages can lead to more resistance.
One helpful practice is to rotate the class of dewormer used. The two major classes are macrocyclic lactones (ivermectin) and benzimidazole (oral drench, also called white dewormers). Resistance to one product within a class could mean resistance to all dewormers in that class.
Esta historia es de la edición May - June 2023 de Successful Farming.
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Esta historia es de la edición May - June 2023 de Successful Farming.
Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 9,000 revistas y periódicos.
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WEARABLE TECHNOLOGY MAKES THE WORKPLACE SAFER
From simple gadgets, like smartwatches, to systems that monitor employee health, tech is a valuable safety tool.
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INVESTED IN COMMUNITY
Aaron LaPointe is honoring his elders and bringing hope to the youth of the Winnebago Tribe of Nebraska.
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ROLL-AROUND SHOP SUPPORT
cool tools for Farming
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MANAGING BACTERIAL DISEASES
Accurate diagnosis is the first step in a control strategy.
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GROWING 200-BUSHEL SOYBEANS
World record holder Alex Harrell shares tips on taking soybean yields to the next level.
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TRANSFER THE FARM NOW OR LATER?
Problem: Is it better to start transferring the daily operation to the farm heir or focus on the farm estate plan first?
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Pork Powerhouses 2023
THE 36 LARGEST U.S. PIG PRODUCERS REDUCED SOWS BY 17,348 IN 2023, THE FIRST NET LOSS PORK POWERHOUSES® REPORTED SINCE 2010.
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DISEASE SCOUTING IN THE DIGITAL ERA
Digital platforms offer new approaches to identify diseases and time fungicide applications to save time and protect yield.
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SHIPPING STRUGGLES
The Mississippi River may present challenges again in 2024.
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SPRAYER PRICING, AVAILABILITY BACK TO NORMAL
Upgrade options improve older equipment's appeal.