if more than a hour running.?
, the day i go lamping, i feed the dog a light meal(sardines+ cup of meal) 4pm. So when go lamping say 12 pm its got something to give it (more ) energy. plus put electrolyte in the water, (working+home.)
i think if youve got to put electrolyte or any other supplements in the water before a dog goes out then theres something wrong with the dog as a good healthy dog shouldnt need any extra supplements before hand