Cheesy Gland Larval Tapeworms Dr Louise Mullemeister Senior

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

National Sheep Health Monitoring Project • 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

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

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

Cheesy gland (CLA) Courtesy of www. sheepconnecttas. com. au

Cheesy gland (CLA) Courtesy of www. lbn. org. au Courtesy of www. infovets. com

Cheesy gland (CLA) • • • Courtesy of www. dpi. nsw. gov. au No effective treatment Vaccination Isolate & cull infected sheep Clean equipment/facilities Hygiene Plan husbandry activities accordingly

Tapeworms of sheep • Adult tapeworm – Moniezia expansa Courtesy of www. wormboss. com. au • Immature or larval (cystic) stages of tapeworms – Hydatid cysts – Sheep measles – Bladder worm

Larval tapeworms Courtesy of www. crookwellvet. com. au

Larval tapeworms Adult stage Taenia ovis Taenia hydatigena Echinococcus granulosus Larval (cystic) stage Cysticercus ovis Sheep measles Cysticercus tenuicollis Bladder worm Echinococcus granulosus Hydatid cyst Size of cysts 5 -10 mm 1 -60 mm Variable Location of cysts Heart Skeletal muscle Liver Abdominal cavity Liver, lungs, kidneys, spleen heart, brain bone Intermediate hosts Sheep, goats, cattle, pigs, wallaby, kangaroo, human

Sheep measles Courtesy www. sheepconnecttas. com. au Courtesy www. lbn. org. au

Bladder worm Courtesy www. sheepconnecttas. com. au

Hydatid disease Courtesy www. sheepconnecttas. com. au Zoonotic

Hydatid disease 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 For medical advice contact your doctor or health clinic or call 13 HEALTH (13 43 25 84)

Larval tapeworm – prevention/control • • • 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