Sorry to hear about your coax woes there Roger and hope you managed to get it spliced up.
Back in my CB days I had some coax that I noticed lashed around banging on the antenna pole when windy and thought "I'll have to fix that one these days....". Of course I never did until the coax shredded so badly the SWR shot up!
I've had 'animal chews' on cables myself and soon learned that a length of corrugated plastic piping can go a long way. They still chew it but at least it's the pipe and not the cables/coax within.