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Beyond the Bale : December 2016
EXPANSES OF GROUNDWATER With more water about, comes larger populations of mosquitoes and sandflies, and these insects can spread the blood parasite, Mycoplasma ovis. This organism ruptures the red blood cells of the infected animals and causes anaemia and the disease called Eperythrozoonosis (“Epi”). With anaemia, first consider barber’s pole worm (and then liver fluke in those regions where the intermediate snail host occurs). However, don’t just assume barber’s pole worm. Mustering severely anaemic sheep for an unnecessary drench can result in greater losses, and bringing the sheep closer together can increase the spread of the blood parasite. ACTIONS: • If anaemic animals are found, immediately collect and send dung samples from the mob for a WormTest. If worms do not appear to be the problem, Epi should be suspected. • If unsure after a WormTest, consult your veterinarian because diagnosis is not straightforward and blood from healthy animals will need to be collected. • Manage Epi by leaving the animals undisturbed (but mustering and drenching is required if it is barber’s pole worm). • Discuss treatment of valuable animals with your veterinarian. SOME OTHER WET WEATHER DISEASES Wet ground will cause softer feet and more foot diseases. ACTIONS: • Valuable heavy animals – particularly rams – should be kept on the driest country. • Monitor for lameness and have treatments at the ready for stock affected with these painful conditions. Barber’s pole worms are more likely to cause disease in southern Australia this year. PHOTO: Deb Maxwell • Metacam 20 is a new meloxicam product registered for use to reduce inflammation; consult your local veterinarian for advice. Lush pastures and more weeds will see a rise in the number of sheep affected by photosensitisation, as has already been reported from southern NSW, where offending plants haven’t been able to be identified. ACTIONS: • Watch for sheep with pink and swollen faces. • Move affected sheep into a shed and feed for a week or so of recovery. • Consider applying a flystrike preventative treatment to their faces, as sheep rub their sore faces, opening wounds that attract flies. PARABOSS: BEST PRACTICE ADVICE FOR MANAGING SHEEP PARASITES ParaBoss is a suite of three products – LiceBoss, WormBoss and FlyBoss – developed to help sheep producers in the management of lice, worms and blowflies. The LiceBoss, WormBoss and FlyBoss websites are sources of detailed management information and regional programs that will assist in managing the major parasite risks for sheep. The websites have been developed by expert panels of parasitologists and veterinarians from across Australia. ParaBoss provides access to the three websites at www.paraboss.com.au. Subscribe to ParaBoss News, the twice monthly free email newsletter with state outlooks on the current state of sheep parasites as well as feature articles and the quick quiz to test your knowledge of sheep parasites. You can subscribe on the ParaBoss website. Join us on Facebook at www.facebook. com/paraboss.com.au to see weekly posts on flystrike, lice and worm control. ParaBoss is funded by AWI and MLA and coordinated by the University of New England with industry oversight. MORE INFORMATION www.paraboss.com.au FlyBoss provides sheep producers with management tools and the latest information on flystrike. FlyBoss is available at www.flyboss.com.au WormBoss provides the latest information about worms and management tools including Drench Decision Guides and Regional Worm Control Programs. WormBoss is available at www.wormboss.com.au ON FARM 47
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