Photo - Having to accept cultural differences

As I said before Tiger is the guard dog but also a lovely, cuddly and loving creature (many people have guard dogs here as properties are isolated, even though the crime rates are very low). The poor thing is very unwell at the moment. All the dogs are on heat at the moment so he runs off at night fighting, and finding girlfriends  (as Pritam puts it) and now he is quite lame with large cuts/bites all over his legs, getting worse every day. Although he is a relatively big dog in the village, he is getting on a bit. During the day, instead of guarding (i.e. barking if anyone comes near the house) he is in the back of the house sleeping and recovering. It has got worse over the last few days, although he still manages to continue his night-time activities, and we are quite concerned. Usually as soon as Tiger sees us up and about in the morning he runs upstairs to see us but he is now unable to get up the stairs. Although people here who have a dog respect it and treat it well, a dog is not a pet. If a dog can't do its job guarding then it is of no use and I'm not really sure what happens at that point. I dread to think as we are very fond of him (he's like a pet to us) but I understand that here you can't have a mouth to feed that isn't 'pulling its weight'. I suggested to Pritam yesterday that we take Tiger to the vet but he said to wait a few days and see what happens. It's really quite upsetting but you have to accept our cultural differences. We really hope he will recover as, if he gets any worse, I don't know what we can do.