By Andi Anderson
Internal parasites pose significant threats to grazing cattle, affecting both visible and subtle aspects of their health. Left unchecked, these threats translate to economic loss for farmers as signs of infections might not always be overt.
The late 90s saw the introduction of pour-on dewormers, which were well-received due to their convenience.
However, there's a growing concern that frequent and incorrect use has made parasites more resistant to this treatment. Other methods like injectable and oral dewormers were less preferred due to the extra effort they required.
The University of Georgia embarked on an extensive study involving nearly 800 weaned calves across multiple research units.
Their focus?
The efficacy of oxfendazole (an oral dewormer), eprinomectin (a pour-on), and a combination of both. They wanted to ascertain if this strategy could ensure comprehensive annihilation of the parasites.
Results were clear. Both the oral-only and the combination treatments showed impressive reductions in fecal egg counts (FEC), a key indicator of parasite load.
On its own, the pour-on treatment wasn't as effective, likely pointing to resistance built over the past decade. In terms of weight gain, a crucial aspect of cattle farming profitability, calves treated with the oral dewormer emerged as frontrunners, proving to be more beneficial than the other methods.
UGA's study emphasizes the need for diversity in our anthelmintic strategies. Farms that have relied on pour-on dewormers might want to rethink their approach, considering the proven benefits of including an oral treatment in their arsenal.
Not only could this mean healthier cattle and increased profits, but it could also combat the growing problem of resistant parasites.
Photo Credit: gettyimages-pamwalker68
Categories: Ohio, Livestock, Beef Cattle