WesternBounty
Lil-Rokslider
Are there potential disease transmission issues to our wild goats and sheep that need to be considered ?
We considered pathogen transmission to wild sheep prior to getting pack goats. M.ovi as related to pneumonia in wild sheep seems to be the concern most often brought up. After looking into pack goats, we came to the conclusion that we could use pack goats and pose little to no risk.
First, goat strains of M.ovi have not been shown to be as deadly as sheep strains when looking at the commingling studies that have been done with domestic goats and sheep. Commingling with M.ovi positive sheep has resulted in nearly 100% death rates in wild sheep. Commingling with M.ovi positive goats has had similar death rates to studies with cattle and horses (Goats-12.5%, Horses-17%, Cattle-11%). I'm not aware of any studies with llamas.
Second, pack goats cannot pass something they don't have; to be extra cautious pack goats could be tested to determine if they carry M.ovi. If our goats don't have it, the risk is zero.
Third, through proper goat packing practices it is extremely unlikely that pack goats will come into contact with wild sheep. Goats are bonded to humans so do not leave you stranded like horses have a tendency to do. They like to have their humans in sight at all times. The mostly likely way that goats become separated from their owners is if predators chase them off at night so it is important to keep them tied at night.
I know I have only mentioned M.ovi. It's where most of the concern seems to be centered even though there are not any documented cases of a pneumonia die-off caused by domestic goats. However, there was a situation caused by "pink eye" in free ranging brush goats. We felt that this could be easily mitigated as it can be detected visually and is easily treated prior to going in the field. Again, these are animals we see for and care for every day; very different from free ranging brush goats that would have the ability to intermingle with wild sheep.