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Mountains Reign Ranch in Peyton, Colorado
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<blockquote data-quote="GoWyo" data-source="post: 1735167" data-attributes="member: 38220"><p>Moses388 - that has been a discussion with BLM and others for a number of years. Historically it was based on a cow that weighs 1000 lbs. Most modern cattle will weigh 1100 to 1400 lbs. that are running on western federal range, so it really comes down to proper grazing management and figuring out how to use the unused forage in those really large pastures. Most BLM and Forest Service permits have utilization or stubble guidelines in "key areas" that the permittee has to meet or face action against their permit. That can get complicated and often results in disagreements between permittees and federal range staff (both the setting of the limitation guidelines and the monitoring results after use).</p><p></p><p>For my own purposes, I have a pretty good idea what the range will produce as far as pounds of forage per acre on my own ground and my leases to leave a 3" stubble (measuring longest leaf on some two-step transects to get at least 30 or so data points) on native range and 4-5" stubble on seedings (usually intermediate wheat, smooth and meadow brome and some other wheat grasses). We try to hit the seedings early and keep them from heading out as long as we can because the forage declines rapidly after they go to seed while the native range is a lot better production-wise and for proper management after it has a chance to grow and start setting seed.</p><p></p><p>If you want to get technical, you can do clipping studies on transects from representative areas and dry and weigh the samples to determine the dry matter production of the forage species (do not count non-forage species). Anyway, around my private ground it works out to about 2.5 acres per AUM (with my cows, which are more like 1200-1500 lbs.) and on my leases 30-60 miles away is around 3.0 acres per AUM.</p></blockquote><p></p>
[QUOTE="GoWyo, post: 1735167, member: 38220"] Moses388 - that has been a discussion with BLM and others for a number of years. Historically it was based on a cow that weighs 1000 lbs. Most modern cattle will weigh 1100 to 1400 lbs. that are running on western federal range, so it really comes down to proper grazing management and figuring out how to use the unused forage in those really large pastures. Most BLM and Forest Service permits have utilization or stubble guidelines in "key areas" that the permittee has to meet or face action against their permit. That can get complicated and often results in disagreements between permittees and federal range staff (both the setting of the limitation guidelines and the monitoring results after use). For my own purposes, I have a pretty good idea what the range will produce as far as pounds of forage per acre on my own ground and my leases to leave a 3" stubble (measuring longest leaf on some two-step transects to get at least 30 or so data points) on native range and 4-5" stubble on seedings (usually intermediate wheat, smooth and meadow brome and some other wheat grasses). We try to hit the seedings early and keep them from heading out as long as we can because the forage declines rapidly after they go to seed while the native range is a lot better production-wise and for proper management after it has a chance to grow and start setting seed. If you want to get technical, you can do clipping studies on transects from representative areas and dry and weigh the samples to determine the dry matter production of the forage species (do not count non-forage species). Anyway, around my private ground it works out to about 2.5 acres per AUM (with my cows, which are more like 1200-1500 lbs.) and on my leases 30-60 miles away is around 3.0 acres per AUM. [/QUOTE]
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