Welcome to our brand-new clinic newsletter! We are planning to release a new edition of cattle-related news and veterinary-related reminders every month. Please contact us if you have any suggestions, if you would like to be removed from our mailing list, or if you know anyone who would like to get signed up to receive the newsletter.
We are now carrying a product called LongRange. LongRange is an injectable cattle dewormer made by Merial Animal Health. It uses extended-release technology to provide 100 to 150 days of protection, depending on the species of parasite. It protects against several species of roundworms and one species of lungworms. It is only effective against internal parasites; you will still need to use a pour-on to control lice. While this product is not labeled for fly control, we have had some clients tell us that they think it is helping to reduce their fly numbers. The graph below shows the concentration of LongRange in the animal’s bloodstream over a 150-day period.
LongRange works immediately to clear out any existing parasites and prevent shedding to reduce parasite buildup on pastures. The concentration drops off over the next month, then starts to rebuild around day 75 to kill off the next wave of the parasite’s life cycle; it will kill any larvae that hatched and parasites that the cow picked up during the time when the concentration was low. According to their label, one dose of LongRange in the spring should take care of internal parasites for the entire grazing season. You can learn more about LongRange as well as use an interactive tool to judge the effectiveness of various deworming protocols at Merial’s website for LongRange: http://m.thelongrangelook.com/about-longrange.php
Things to Remember This Month
One of the main concerns in beef cattle during the summer is pinkeye. Pinkeye vaccinations should ideally be done in March or April, so at this point in the summer, the best way to prevent pinkeye is through fly control and pasture management. There are many options of ways to control flies. Using a combination of multiple methods will achieve the best results. Several fly sprays and pour-on dewormers are labeled for short-term fly control. Backrubbers that contain insecticide can be installed in your pastures; these are most effective when they are located in gateways, etc. that the cattle have to walk through on a daily basis, and insecticide must be re-applied when the backrubber starts to dry out. Fly tags are another option. They should be applied in both ears of every animal for best results. It is recommended to put in fly tags when it reaches the point in fly season that there are about fifty flies per animal side. Fly tags need to be removed at the end of the summer, because leaving them in has resulted in some resistance to tags. Mineral with insecticide in it can also be used. The insecticide is not digested by the cow, so it is in the manure, where it kills fly larvae before they can develop into adult flies. Pasture management also plays a role in pinkeye prevention. Tall grass can cause irritation to the eyes, which allows the bacteria to get established and cause pinkeye. You can get more tips from BEEF magazine at: http://beefmagazine.com/mag/beef_fly_zone
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