First extended-release injectable cattle dewormer available

Dec 7, 2012

Internal parasites often cause significant production losses in cattle, frequently resulting in significant financial losses for producers.

Production losses can include reduced weaning weights, delayed puberty and decreased fertility in replacement heifers, reduced pregnancy rates in mature cows, and reduced feed intake, reduced feed

efficiency and immune suppression, according to Lee Jones, assistant professor and veterinary field investigator, UGA College of Veterinary Medicine. Without a proper parasite plan, problems can go unnoticed for several months, and may even end with animal deaths.

Last week, Merial released a new product that will give producers a boost on parasite control. LON- GRANGE™ (eprinomectin) is the first extended-release injectable cattle dewormer that provides cattle producers season-long persistent parasite control for 100 to 150 days in a single dose, depending on parasite species.

The new parasite product lasts long enough to break the parasite life cycle and reduce parasite burdens on the pasture, according to Merial. It takes about 100 days of continuous parasite control to break the parasite life cycle and begin to reduce the parasite burden on the pasture. The resulting benefit of breaking the parasite life cycle is better-performing cattle throughout the grazing season and pastures with lower parasite loads.

“LONGRANGE gives cattle producers a new way to think about parasite control,” says Joe Dedrickson, DVM, Ph.D., director of Merial field veterinary services.

“Instead of treating cattle up to three to four times during the grazing season, which is what would be required from conventional dewormers, LONGRANGE gives cattle producers the option of a single treatment that will last all season. This means less labor for producers and less cattle stress and shrink.”

According to Dedrickson, the new product offers excellent efficacy against economically important parasites and hard-to-kill parasites.

“The short amount of time LONGRANGE stays at subtherapeutic levels helps ensure the product does not select for resistance any more than products currently on the market,” explains Dedrickson.

Impact of parasite control practices

Of all the animal health practices used for increasing production, treating beef cows for parasites gives the greatest economic return of up to $201 per head, according to Merial studies. This includes improved reproduction and earlier calving, leading to earlier weight gain in calves.

Studies have shown cattle treated with LONGRANGE gain more weight than control cattle. At seven study sites, weight gain was measured before treatment and at study day 120. According to the release, across the sites, cattle treated with new product gained more weight than control cattle. At six of the seven study sites, the difference in weight gain was statistically significant.

When given at the recommended dose volume, LONGRANGE is effective in the treatment and control of the following internal and external parasites of cattle:

• Gastrointestinal Roundworms

• Cooperia oncophora – Adults and L4

• Cooperia punctata – Adults and L4

• Cooperia surnabada – Adults and L4

• Haemonchus placei – Adults

• Oesophagostomum radiatum – Adults

• Ostertagia lyrata – Adults

• Ostertagia ostertagi – Adults, L4 and inhibited L4

• Trichostrongylus axei – Adults and L4

• Trichostrongylus colubriformis – Adults

• Lungworms

• Dictyocaulus viviparus – Adults

• Grubs

• Hypoderma bovis

• Mites

• Sarcoptes scabiei var. bovis

For more information and to find out how LONG RANGE can fit into your deworming program, visit www.theLONGRANGE—Traci Eatherton, WLJ Editor