In other posts, I have touched on respiratory conditions and drug use, but have not gone after it specifically. If you think OPP is a factor, then review my posts on that subject but it is not an economic factor in commercial sheep production. That being said let's go to the heart of the situation.
Early diagnosis and prolonged treatment are essential for successful treatment. Delayed diagnosis results in extended treatment and permanent lung damage. Discontinued treatment too soon results in reoccurrence and permanent lung damage as well.
What is my suggestion? Simultaneous injection of Nuflor and Draxxin subq immediately and repeat the Nuflor in 48 hrs. Nuflor should be used at the rate of 6cc per 100# and Draxxin 1cc per 88# body wt. Biomycin 5cc per 100# subq may be substituted for Nuflor. Draxxin is expensive and may not always be necessary, but has a different mode of action and lasts up to five days.
For coughing sheep sulfas in drinking water for three to five days may be helpful. Clinically sick animals need to be individually treated.
There is a Pasteurella Bacterin available for vaccination which I don’t believe to be effective. The intranasal cattle vaccine is ineffective in sheep.
