Beware! Deadly goat diseases linked to stress

A farmer tends to his goats. To avoid causing goats stress, be gentle and keen when weaning, doing castration and changing feed.

Dear Daktari

I run an animal farm in Kitui where I keep poultry, beef sahiwal cattle and galla goats. My concern is this: whenever I restock galla goats from Garissa,  I usually experience high death rates as a result of pneumonia. This is evidenced from the completely destroyed lungs noted whenever animal is slaughtered. The otherwise healthy goat collapses and dies a month after purchase. What could be the problem?