« Thread started on: Oct 18th, 2006, 04:06am »
Though this article is geared towards the seed eating bird there are some relevant section applicable to poultry (small excerpt below) http://www.exoticpetvet.net/avian/20facts.html ..."Milk sugar is called lactose. Mammals have a digestive enzyme, lactase, to digest milk sugar. Birds simply lack lactase and cannot digest milk products containing lactose. Birds will develop diarrhea when lactose in the diet reaches between 10 and 30 percent. Products that contain a significant amount of lactose are dried skim milk and dried whey. Humans may also suffer from an inability to digest lactose, and this is called lactose intolerance.
Some milk products contain little or no lactose, and these may be safely fed to birds. And actually, these products (cheese and yogurt) are a good source of calcium for birds. Some owners have asked me if they can feed birds items containing lactose if they also give them one of those products for humans (such as Lactaid) to aid in the digestion of milk sugar. Unfortunately, that is also dangerous, as one of the by-products of lactose digestion is galactose, which is also toxic to birds. So these products must never be used in birds."
Some other relevant sections include: > 12.Some Foods are Nutrient Antagonists > 17.Monkey Biscuits are for Monkeys, Avian Pellets are for Birds