IMG breaks current stockmanship, cattle behavior, and grazing paradigms on at least half a dozen levels, allowing you to practice regenerative grazing without adding fences, installing complex water infrastructure or making daily moves. These stockmanship methods have worked in 14 different states and 3 different foreign countries, with more breeds and crosses of cattle than I can count, so the chances they won't work on your cattle or in your environment are slim to none.
As IMG works a bit different on every ranch. Rather than me trying to explain how it works, listen to this video from the Western Sustainability Exchange as you would a podcast. I'm mainly moderating while Fernando Falomir from Understanding Ag, Pedro Calderon, senior bison manager for the American Prairie Reserve, been and Riki Kremmers who has been running an IMG grazing program on the family ranch at Lance Creek, Wyoming describe how it works in their various environments while you peruse through the links in the header.
The following link is a working cows podcast, interviewing Riki Kremmers on implementing IMG on their ranch in Wyoming.
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Desertification of the Southwestern USA is easy to see. Below is an abandoned mower from when native grass hay was cut on this very spot less than 70 years ago.
Stocking rates in the region this picture was taken in has gone from 80 acres per cow to over 180 acres per cow in the last 20 years. It is possible to regenerate these grasslands through planned biological regenerative grazing using IMG. During the IMG schools, there is discussion on how to plan, and keep the plan flexible, as well as designing water plans at a minimal cost and keeping labor costs low.