AGRIBUSINESS: LIVER FLUKE IN CATTLE.
A
liver fluke is a parasitic worm that commonly live off of cattle, sheep and other livestock.Cattle can pick them up while out at pasture, and if not treated can drastically affect their performance, and cause liver
damage.
The disease they cause is called fascioliasis. Cattle typically develop chronic disease and classically show loss of weight, condition and become anaemic. Liver fluke-related disease can become acute and even fatal.However, if the offending liver flukes mature into adult egg-laying parasites, it can lead to severe liver damage depending on the number. Cattle infected with liver fluke are considered to be more susceptible to other infections,that is why it is so important to deal with liver fluke early.
HOW TO DEAL WITH LIVER FLUKE
1: IDENTIFY RISK
If you are aware of high risk areas for liver fluke, then deal with them as soon as possible. Fence off wet areas, attend to leaky troughs and pipes, drainage or housing early.If you have lost any sheep, investigate this, as this can be an early indication of fluke risk for your cattle.
2: TREAT APPROPRIATELY
Cattle cannot pick up liver fluke when they are housed, however if they are not, it has the potential to put their growth rates well below market weight. Correct treatment means using the right product, at the right time, using the correct dose rate and administering it the right way. Never underdose your cattle for liver fluke, and do not assume that one size fits all when you’re measuring doses. Base your measurement off your heaviest animal for a group of cattle. Do not overdose your cattle either as this can encourace resistance to liver fluke treatments. If you have a large variation in weights, group them to ensure an accurate dose rate. If the treatment comes in the form of an injection, ensure it goes under the skin and not into the muscle.
3: AVOID RESISTANCE
Over-reliance or overdosing on a flukicide can lead to drug resistance growing in liver fluke.It is important that you have an effective plan for cattle that reduces the risk of resistance
spreading.
Treatment: Among the products that kill liver flukes are Ivomec® Plus (Merial); Valbazen® (Pfizer) and Noromectin® PLUS (Norbrook),triclobendazole,
nitroxynil 34% and
3 Levanor plus.