Here’s a primer for managed grazing, Part III
In the first two stories of this series we covered some terms used in managed grazing, provided their definitions, and explained why the terminology and the ideas they represent matter.
In this third and final article of our managed grazing primer, we’ll cover some important concepts that aren’t based in terminology.
Plants: Taller and deeper is better
Early in the days of managed grazing there was a huge and largely mistaken emphasis on grazing plants in Phase II, or vegetative state.
Pushed to its logical end, this resulted in what then grazing consultant Burt Smith once commented about New Zealanders: “They’re so afraid of Phase III growth they never let their plants get out of Phase I.”
Young forage is high in nitrogen/protein and low in energy, while older forage is higher in energy and better balanced in a ratio of nitrogen/protein, although it has higher indigestible content.
This older attitude foiled the greatest advantages of managed grazing. It never let the plants work with soil life to build soil. It never let the grazier build much forage reserve for winter or for drought.
Last but not least, we were told for years the quality of taller, older forages was so poor that cattle could not perform on it. That is not necessarily true of properly managed, multi-species pasture where soil health is on an increasing plane and cattle are harvesting forage for themselves. It’s all in the management.
Balance animal needs with grass management
One of the most important concepts to managing livestock well on forage is to recognize livestock production and nutritional needs and graze accordingly.
If you have dry cows or are dry wintering cattle, you might ask them to eat more of the plants.
Remember the highest quality in mature, fully recovered forage is near the top of the plants and the outer parts of newer or longer leaves
Again depending on livestock class and forage conditions, an affordable and well-designed supplement program can let you graze more severely, also.
Erratic grazing breeds success
Nature is chaotic and constantly changing, so your grazing management needs to be also.
If you graze the same areas the same way and same time each year, you will develop plants you may not want because they will try to fill the voids you are creating and you may hurt plants you desire because they will become grazed down and weakened, perhaps at critical times.
If you move those grazing times and even change animal densities and perhaps also add other grazing species, you will create more diverse plant life and soil life.
Remember, too, that your livestock don’t need to eat everything in the pasture to do a good job grazing.
Cattle legs are for walking
Water is always a limiting factor for managed graziers, but the low-cost solution in many cases is to make cattle walk back to water.
Certainly you can eat up thousands of dollars of profit by installing excessive water systems and numerous permanent water points.
This can be overcome to some degree with temporary fencing back to water and using existing water sources.