Pilchards in Brine - Is this OK?

[dorrit]

I always use the fish in oil, be it, Tuna, Mackerel or Pilchards or Sardines, as it's an excellent soucre of protein and vitimans and they're low in fat. My vets recommended this many years ago and my dogs have always loved it. Tinned fish and a few dry biscuits is what they have for breakfast every day. Ehtel is even partial to a little mayo with her tuna, though refuses to eat bread!