Fruits and Veggies are not best treats for a ferret. They can cause health problems. (such as blockage, insulinomas).
The best choice for treats for your ferret are meat based treats. Cooked chicken, turkey and steak are great treats. Never give your ferret any fruits (fresh or dried) or high carb- sugary treats such as raisins, cheerios, 8-1 yoggies, or anything banana-raisin flavored.
Ferrets are obligate carnivores, which means they require a diet that's very high in meat-based protein and fat. Because they lack a cecum, ferrets cannot digest plant protein, so fruits and veggies is a no…no - no matter how much they beg.
Sugary snacks, such as raisins, may cause obesity, tooth decay, and aggravation of hypoglycemia caused by insulinomas. High carbohydrate treats, such as cookies, cereal and bread may lead to diseases of the pancreas.
Yes, they will beg for healthy treats.
Here are some suggestions for healthy treats
Cooked or raw chicken, turkey, steak
N- bones
Totally Ferret Treats
Foamy Fries
Ferretone
Eggs
Chicken gravy or duck soup
Stage 2 baby Food
No Raisin and or Grapes - Check out these links.
Raisin and Grapes Toxicity Post by: Jerry Murray, DVM
http://ferrethealth.org/archive/SG14346