Any trasplanted root will be iffy due to the stress already incurred from being transplanted... the later in the growing season that they get browsed the better there chances....
Not that I'm disagreeing with Latt's answer. Just adding to it I guess..,
I agree with 5prong, 3yr. transplants will have less chance of coming back than a 3 year old plant started from seed. Deer generally won't go after seedlings because they are so small and short, often below the browse line. They will start nailing them once they get taller and into the 2 & 3 prong stages. Thats how it works in my woods anyway. The deer absolutely love ginseng leaves.
I saw where you posted after I replied to you that you planted some 3 year old rootlets.
I personally would rather spend my money on seeds than rootlets. Everyone is different but thats just me.
Thank you all. This is a learning experience for sure. I hadn't seen the deer using this property in a while, but I guess they could not resist getting in my patch. I think from now on I'll be ordering seeds , not so much for the rootlets. Thanks again for your help.