Never used straw shortners. But that's more to do with growing the crop on a shoestring more than anything.Going by that my cows gave me a waste product this morning as I had already harvested the milk yesterday, and any 2nd crop of lambs from a ewe is the same.
If straw isn't a waste product why do you arable guy want such a short straw using shortners?
Once again your narrow view pops up again.
look at the supply chain involved in livestock farming. Travel through a livestock area and look at the number of businesses involved in the process.
Traveling through the east of the country last week there was a distinct lack of ag related businesses. I saw 2, Claas UK and 1 machinery dealer. Here in Devon every town had an ag related business.
Livestock prices are making up for the years of under investment and low incomes.