Cheesy Gland & Larval Tapeworms Dr Louise Mullemeister Senior Veterinary Officer Biosecurity Queensland Roma

Monitors up to 20 different conditions nationally –Caseous lymphadenitis (cheesy gland) –Sheep measles –Hydatids –Liver fluke –Bladder worm –Arthritis National Sheep Health Monitoring Project

A report done by GHD Hassall (2009) Processors $15 million per year Producers $95 million per year on-farm National Sheep Health Monitoring Project

Benefits Health status Surveillance & disease trends Regional extension activities Research & development Producer feedback National Sheep Health Monitoring Project

Question: How would you rate your knowledge on the following conditions in sheep? Queensland Sheep Producer Survey

Cheesy gland (caseous lymphadenitis – CLA) Larval tapeworms –Sheep measles –Bladder worm –Hydatid disease Summary

Cheesy gland (CLA) Courtesy of

Cheesy gland (CLA) Courtesy of Courtesy of

No effective treatment Vaccination Isolate & cull infected sheep Clean equipment/facilities Hygiene Plan husbandry activities accordingly Cheesy gland (CLA) Courtesy of

Adult tapeworm –Moniezia expansa Immature or larval (cystic) stages of tapeworms –Hydatid cysts –Sheep measles –Bladder worm Tapeworms of sheep Courtesy of

Larval tapeworms Courtesy of

Larval tapeworms Adult stageTaenia ovisTaenia hydatigenaEchinococcus granulosus Larval (cystic) stage Cysticercus ovis Sheep measles Cysticercus tenuicollis Bladder worm Echinococcus granulosus Hydatid cyst Size of cysts5-10mm1-60mmVariable Location of cystsHeart Skeletal muscle Liver Abdominal cavity Liver, lungs, kidneys, spleen heart, brain bone Intermediate hosts Sheep, goatsSheep, goats, cattle, pigs Sheep, goats, cattle, pigs, wallaby, kangaroo, human

Sheep measles Courtesy

Bladder worm Courtesy

Hydatid disease Courtesy Zoonotic

Transmission –Patting a dog then touching mouth –Kissing a dog –Items contaminated with soil –Contaminated food or water Prevention –Worming dogs with praziquantel –Preventing access to offal or carcases –Preventing access to vegetable gardens and kids play areas –Removal of dog faeces –Personal hygiene Hydatid disease For medical advice contact your doctor or health clinic or call 13HEALTH ( )

Monthly worming of dogs with praziquantel Feed commercial dog food No access to offal or carcases Burial/burning of livestock & roo carcasses Livestock water free of dog faeces Larval tapeworm – prevention/control