Unfortunately, your post is the one we have all been dreading. We have not come to a definitive recommendation as far as what to use for babies. I’m glad you are aware of last falls problems with puppy Esbilac. One thing that it did was to open our eyes to the devastating impact of deficient formula on our babies. Rehabbers are all over the place as far as what they will be using. I think it is safe to say that we will all be using something different this spring.
The only formula that has any trials done on the young babies is the NEW goat milk formula recommended by Henrys. It is a modification of the original temporary goat milk formula with yogurt and heavy cream.
https://www.henryspets.com/3-how-to-...baby-squirrel/ This link gives you the recipe for the formula.
On a personal note, I was quite surprised at how deficient the original goat milk recipe actually is. When the ingredients are put into a nutrition calculator you see numbers that show a very lean formula that won’t sustain them for long. Of course it was always a temporary formula and never intended for long term use.
Because you are sitting there with a pinky in your hands and you need information NOW, I would use the recipe recommended by Henry’s. Again, my opinion but I would switch to Fox Valley 20:50 at 3 weeks instead of the recommended 4 weeks. Last season I had a 3 week old (35g) that came to me on FV 20:50 so I continued it. He did wonderful and never had an issue with it.
I don’t see myself recommending Esbilac at any point in the future. It will take a long time to get the nasty taste of that disaster out of my mouth. I won’t be using it ever again. I have lost trust in the company. Again, I had to offer my opinion on this, as a consensus has not been established on TSB.
I would recommend that you stay closely involved with TSB as recommendations or problems develop. We are all in the same boat with this one.