Hi I'm new here and not introduced myself yet, but thought I would just say that Lactol isn't the same as whiskas cat milk. It's what you use when you need to hand rear young animals because they have no mum and it's a replacement for mothers milk. It's entirely possible that your jill would react to it as it's the closest thing you can buy to a lactating bitches milk. You can use it for very sick animals which are not eating but I would imagine it would be far too rich for a perfectly healthy animal.