Tyler, that is a great link. We do Wildlife Management but that would have been helpful when we had our farm.
When we were younger we bought our farm which had Ag tax status. When I went to the Tax Office I was told I had to provide my IRS tax forms showing we were farming. We didn't have such a thing as were doing homesteading for ourselves and I explained that to them.. We gave away produce, let people cut hay off our property, had chickens, cows, a pig and goats. This was before we had internet to tell us what we could do.
Here is another link I found helpful but is also Texas specific.
https://www.comptroller.texas.gov/taxes/publications/94-101.pdf
Sales of some agricultural items are never taxable, regardless of who is buying the item or how it will be used. The following agricultural items are not taxable and an exemption certificate is not required.
Seeds and annual plants, the products of which are commonly recognized as food for humans or animals, or are usually only raised to be sold in the regular course of business, such as corn, oats, soybeans, and cotton seed;
Animals, including cattle, sheep, poultry and swine, the products of which are ordinarily food;
Horses and mules;
Water;
Feed for farm and ranch animals or wild game, including oats, hay, chicken scratch, wild bird seed and deer corn. The exemption does not apply to feed for pets and exotic animals, even if those animals are located on a farm or ranch.