Case study brought to us by Case Allan Bergholdt, Dairy-production:
"For some time I have been observing a strange behaviour of our cows. It seems that they have something annoying them in their respiratory system but its only when they are eating.
The cows are lying on straw bedding and bedding is done once a day with a Teagle straw dispenser which is of course creating some dust. I dont think this is the problem since the barns are completely open and the imitation for the cows occur during the whole day.
The feed that we are giving the cows is 41-42% dry matter so I also dont believe this is the reason for the irritation. Below I have attached a short video shoving one of the cows. Almost every minute I can make a video like this in the barn, and the problem occur in all production groups and by all cows. We have also a group of high pregnant heifers in the same barn, and by them I have not seen any problems.
Do you by any chance have experience with this kind of behaviour and any suggestions to what might be causing it? "
Who can help? What's going on here? Please share your thoughts!