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Case notes on veterinary investigations in sheep, cattle and other species

2016-17 Summer edition of case studies

Sheep

Elevated aqueous humor D-lactate levels confirm rumenal acidosis in an autolysed lamb carcase
Written by: Jeremy Rogers, Senior Veterinary Officer, PIRSA, South Australia
Ocular fluid, brain and rumen observations can still be helpful sevearl hours after an animal has died, even when other tissues and organs are autolyzed. In this case acidosis was diagnosed in an autolysed lamb carcase ... Read More

Haemonchosis in lambs one month post Ivermectin drenching in low rainfall South Australia
Written by: Jeremy Rogers, Senior Veterinary Officer, PIRSA, South Australia
An outbreak of haemonchosis killed lambs rapidly, without signs of scouring within one month of being drenched with ivermectin suggesting that drench resistance contributed ... Read More

Nitrate poisoning in merino ewes introduced to a canola stubble
Written by: Bruce Watt, Central Tablelands LLS, and Patrick Staples and Erika Bunker, EMAI, Menangle
Ruminants are particularly susceptible to nitrate poisoning because rumen microflora convert nitrate to ammonia via highly toxic nitrites ... Read More