
Dont know how useful these will be on a giant breed - only used them with small/medium dogs. Firstly, Vitamin B12 shots usually increase appetite (used this with horses effectively too). Secondly, a few years ago one of our youong dogs dropped a lot of weight after his first experience mating a bitch. He had never been a greedy eater, and his appetite got even worse, not picky, still ate his usual Eukanuba, but only very small quantities. We were looking for a short term fix as a show was coming up (I know, I know, not sensible thinking), while we looked for the long term solution, and someone suggested a liquid food supplement for the infirm such as complan. I bought some of ths, and also noticed another product in the same area of "Boots" called "crash weight gain", it seemed to be aimed at Body builders. I took both products to my Vet for advice, and after reading the contents she gave the go ahead to try Hugo on the "Crash" stuff, mixed to a Milk Shake with Goats Milk. I got the Chocolate and Vanilla flavours (tiny quantities of Choc. flavouring - would not cause any size dog a problem). He loved both flavours, and worked up to half a pint twice per day. He gained 2lbs a week for 3 weeks, which put him at an ideal weight. It also did exactly as the label said, and boosted his appetite, when we took him off his milk shakes he stayed at his new weight because he was eating well again.
Gwen