Grain vs. Grass

We at Cibola Farms have contemplated this topic for more than 10 years now, and we have tested out everything from a grain/hay finishing lot in the early years to a pure grass finished effort in the middle years to arrive at our current line of thinking as practiced presently.

Nutshell description:  Cibola Farms operates a grass-based rotational grazing system where grain is used on a supplemental basis through the year as dictated by nutritional requirements (lactating cows during calving season, conception periods in the fall, severe seasonal variations, etc.).  The main component of grain is used to finish our bison just before processing for the last 3 months, but this is done while those bison are rotating ahead of the main herd on the best lush green grass that is available and only during the grass growing season.  We do not finish our bison on grain and hay.  Please continue to read for more explanation on how we arrived at this set of decisions.

Note:  Grass-Fed and Grass-Finished mean two different things.  Grass-Fed means that the referenced animal is eating some sort of forage based diet.  All ruminants / ungulates are grass-fed as it would be impossible to keep them alive for long without a diet that is composed of at least 60-70% forages.  Dry hay that is delivered to a feed-lot animal that never sees a pasture is technically “grass-fed.”  Grass-finished is a much harder thing to define, but as far as we are concerned, this is generally a very intensive operation where the farmer has the resources to cultivate a high-energy forage crop for the purpose of providing increased energy and protein for a period of time to affect a change in the muscle structure that leads toward a more tender final product, and involves the animals harvesting this higher energy forage directly.


Through the years, and thanks to Daisy, the home kitchen raw milk dairy cow, we have come to the thought that the culprit in the grain versus grass discussion is not the grain as much as it is the lack of green grass.  All reputable source studies on the subject of grain versus grass are looking at the two extremes and comparing animals in a feedlot to animals on grass pastures.  Animals in feedlots are fed about 1/3 of their daily diet in grain and the other 2/3 of their daily diet in hay and silage, which are both dead grasses that have been harvested, dried or fermented and delivered to the animal in the feedlot.  These dry grasses no longer carry the beneficial properties found in grass-finished meats.  Animals that are finished on green forages out on pasture have clear high levels of CLA, Omega-3 Fatty Acids, Beta-Carotene and other beneficial properties that are severely lacking in the feed-lot meats.

On one side of this discussion, you get tender well marbled meats from feedlot animals, and on the other side, you get a variety of healthy benefits from grass-finished animals.  Getting tender well marbled meats from a grass-finished operation is very complicated and far more resource intensive than it might initially appear.  Leaving animals on pasture grass until the day that they are ready for processing (usually dictated by a combination of age and weight), does not produce a tender product.  Americans have grown accustomed to eating tender meats, and this is what the majority of our customer base demands.

Due to a variety of reasons that include land costs and production costs, creating a grass-finishing operation at Cibola farms has turned out to be far more expensive and complicated than we would have expected.  The demand for grass-finished bison meat is extremely low at the retail price levels that would be necessary to sustain such a business model.  This is where Daisy comes in.  Based on our observations and experience producing grass-based milk using a grain supplement while the dairy cow is on green-grass pastures, we have decided to aim for a grain-on-grass finished bison product.  We hope to get help from Virginia Tech to do a meat analysis of our grain-on-grass finished bison product toward the end of this growing season.  First step was to create and implement the system, second step was to test the product for flavor, tenderness and quality.  The first two steps are now complete and we have achieved success that meet our standards.  Final step is to now work on proving our theory, which we will of course post here.

Daisy’s Story

Daisy is milked every day at Cibola Farms, and aside from the desire for access to raw milk, we were also looking for a grass based milk product.  All common dairy cows require grain to maintain their milk production, which is how they have been bred over time.  Without the grain, they will continue to product vast quantities of milk each day and pull the resources that daily grain provides from their body when grain is unavailable.  Eventually they will start to dry up, but often times after doing damage to their future body condition which results in a variety of problems.  Again, this is how they were bred and is unavoidable.  We of course, not being dairy farmers, did not realize that we had to load our dairy cow up with 1/3 of her daily feed consumption in grain each day and were very disappointed when this realization set in.  What about our desire and goal of grass-based milk?  Well, we followed the prescribed daily grain ration and discovered after just 3 days at our farm that her milk started to turn a deep yellow color.  She had come from another farm where green grass pastures were not available.  This yellow color continued to deepen until we had the richest pasture based milk that we have ever seen.  It has been 4 years now without any change, despite the fact that she is getting 1/3 of her diet in grain.  Two years ago she calved very late in the grass-growing season, so we were forced to milk her through the winter (yuck).  As the green pasture grasses  disappeared and winter set in, we started to feed her hay plus grain.  Her milk turned white.  All the green grass benefits were clearly gone.  Once the Spring grasses returned, her milk color deepened back to its illustrious deep yellow.  So…we got to thinking.  Maybe the options aren’t only feed-lot or grass-finished.  Maybe there is a happy balanced middle-ground:  Grain-on-Grass.

Is Grass-Only Natural?

We don’t believe that ruminant animals were ever naturally grain-free.  Bison prefer grain over grass, and that is likely a purely natural instinct.  In the wild, bison would graze across the Great Plains in a wide migratory pattern.  The growing season on the plains is very short, just a couple of months.  The plants grew very quickly and very tall and ended their season with a large seed head, much larger than we have in the grasses that currently grow in this area, and much larger than the invasive species of grasses currently growing on the Great Plains that have since pushed out nearly all native grasses.  The Bison would then move in a constantly flowing pattern across the plains consuming everything in their path, including the vast quantities of seeds.

The bison at Cibola Farms gave us this demonstration a few years ago when we had our poultry operation using part of a bison pasture, so that we could not graze the majority of the pasture until well into the summer after the spring grasses fully went to seed.  We turned the bison into the pasture and they spent the first full day nibbling off the seed heads from the grasses before they began to graze.  The pasture was thick with seed stems before they entered, and the next day every seed head was gone and left was the bushy grass and the long seed stem.  After further contemplation and observation, we realized that all wild animals “fatten” toward the end of the season when there is a wide abundance of seeds, fruits, nuts, acorns, etc.  (the bison love our walnut trees and hang out there for hours working on cracking open the hard shell in the Fall).  Green pastures in a rotational grazing system do not provide any of the natural occurring seeds found in the wild.  All of our pastures have been groomed for maximum grass production, and the bison are continually moved across in a very calculated pattern in order to keep the grass in a constant vegetative state (just like mowing a lawn).  This is a necessary part of the production operation, for which 400-500% more land would be required to replace this system.  Using grain to replace the loss of “natural fattening” that occurs in wild animals in nature is our general goal, but the key factor for us is to keep them on green grass pastures during this process.