Ron, I'd like to think it did - but really do not think its much, probably not enough to hardly consider in the next year's planting. I'm sure it adds some back, but how much??

As far as comparing it it cow/pig manure - I did try to research this somewhat - but found little in comparison. Here is what I've inferred from what I learned though:

Cows especially, are overfed - by virtue of what we want out of them )milk/beef) As a result, they cannot possibly utilize all the Nutrients they take in, so their manure is Relatively High in essential elements for plant growth. In contrast, deer rarley take in more than they use - so thier byproducts are less in proportion.

I think back to when I used to milk cows in school, we'd load the manure spreader, and when it was full it probably held several tons of manure - yet the spreader only put it down about 1/4 -1/3 acre - so when I think of the lbs of deer manure that are being put down, I think its a smaller proposition, even over months of feeding.

I hope I'm wrong!