Part of his goal in obtaining the degree, he says, was his desire to educate others about the sustainability of modern farming practices. (moneysense.ca)
This was because, before modern farming practices, we did not have an abundance of food available to us at all times. (drjockers.com)
The website says McLachlan discovered that all cows produced only the A2 protein but that the A1 protein emerged later through modern farming practices. (afr.com)