Farm & Ranch
[AgriLife Today] As DNA tests become more common, researchers rapidly add equipment to keep up
By: Kathleen Phillips
Writer: Kathleen Phillips, 979-845-2872, ka-phillips@tamu.edu
Contact: Dr. Charlie Johnson, 979-862-3287, charlie@ag.tamu.edu
(Editors: April 25 is National DNA Day commemorating the day in 1953 when scientists published papers in the journal Nature on the structure of DNA. Now, 64 years later, the concept is much more familiar to the average person.)
COLLEGE STATION — Unless your career wardrobe consists of multiple white lab coats and your office has a cache of test tubes, you probably don’t remember where you were when it was announced that the human genome had been sequenced.
But, if you know that you can now dish out $100 to map your ancestral migration through history, the term “DNA” may roll off the tongue like the ABCs.
The surge in genetic research and its increasing acceptance in the general public bodes well for health, agriculture and natural resources discoveries — not to mention genealogy enthusiasts. This has scientists scampering to keep up with the technology, according to Dr. Charlie Johnson, director of the Genomics and Bioinformatics at Texas A&M AgriLife Research in College Station.
It’s been a productive 20-plus years since two bacterial genomes were first sequenced in 1995, according to the National Institutes of Health-National Center for Biotechnology Information. Almost 125,000 organisms have been sequenced, including — to help pinpoint your ancestry — the human genome in 2003.
“The technology is relatively new. Before 2007, sequencing was very difficult, slow and laborious,” Johnson said. “The human genome project, for example, started in 1990 and took 13 years to complete at a cost of about $3 billion.”
Once science got a grasp of the technology, however, researchers from agriculture to zoology clearly saw how peering into the innermost level of an organism’s existence might help address issues such as disease, drought and pestilence.
One problem, however, was cost, Johnson noted.
“The kind of instruments needed to do sequencing are not affordable for a single lab to own,” he said. “On the average, they cost about $1 million apiece. And it would be hard for any one investigator to generate enough research work to justify that investment.”
AgriLife Research, with its extensive scientific network across Texas, envisioned a bigger picture. In 2010, the agency hired Johnson to establish a central core of equipment and a set of experienced genomics technology scientists who could support researchers in a cost-effective, efficient way. Even more, they provide their expertise to scientists throughout the Texas A&M University System.
“Our reputation for scientific excellence and high-quality data has led to collaborations with scientists around the world, including groups in 35 countries,” Johnson noted. “Beginning in 2009 when the first next generation sequencing system was purchased and over the last eight years, AgriLife has continued to keep pace with a technology that is changing so fast. The cost of sequencing has dropped from $3 billion for the first human genome to less than $1,000 today and is expected to dip below $100 in the coming years.”
This month, the center will put in place an Illumina NovaSeq 6000, a machine Johnson said can yield the equivalent of 48 human-sized genomes in less than two days. This will significantly cut costs.
“Texas A&M AgriLife is one of the first academic institutions to have access to this technology,” Johnson said. “This is the right tool at the right time to face this new era of big agri-genomics, and we are thrilled to be part of it.”
In essence, like one’s cellphone, DNA sequencing technology is ever-evolving at a frantic pace, he said.
“If you are not constantly upgrading, you quickly fall behind. We work hard to get these new machines so we can continue to provide the highest quality data using the latest genomic technologies to give our collaborators the biggest bang for the buck,” he said.
The center has more than 350 principal investigators in collaboration and has grown from “essentially doing a few projects a year to now basically adding one project a day,” Johnson noted.
And genome sequencing is only part of the effort. Johnson’s team also has an active bioinformatics research program, providing data analysis for researchers.
“Genome sequencing produces a massive amount of data,” he said. “Imagine a library stack of encyclopedias. Grind them up in a paper shredder, and you end up with strings of letters. The challenge is to put all those back together into the book that describes what you sequenced. Then you can use that information to make some discovery or find out something useful.”
Researchers who collaborate with the center agree.
“Working with the center can be faster and cheaper than outsourcing to other labs,” said Dr. Bill Murphy, professor of veterinary integrative biosciences at Texas A&M. “The acquisition of the PacBio machine was instrumental because few if any core labs offer this type of sequencing as a service. The availability of the instrumentation at the core labs has helped in obtaining my lab’s funding from the National Science Foundation, Morris Animal Foundation and Winn Feline Foundation.”
Murphy, whose lab works on generating an accurate genome sequence for the domestic cat, said a genome sequence allows researchers and veterinarians to identify the genetic bases of diseases, which can lead to the development of genetic tests and therapeutics to reduce the incidence of specific diseases within pet breeds and across the random-bred population.
“AgriLife has also generated genome sequence data from more than a dozen wild cat species, which has helped improve our understanding of cat evolution, hybridization and measure of genetic diversity that are relevant to guiding conservation practices,” Murphy said.
“The scope of what we do across AgriLife, the veterinary school, the medical school and engineering is extremely broad,” Johnson said. “Being able to work with them on their projects and finding out all that is going on in research is incredible.”
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Find more stories, photos, videos and audio at http://today.agrilife.org
Farm & Ranch
Changing the Way We Handle Hay
Few machines have reshaped livestock operations as much as the round baler. Before its arrival, haymaking was slow, labor-intensive, and limited by the storage and handling of small square bales. The round baler mechanized the process, producing large rolls that could be handled with tractors instead of back-breaking labor. Today, those big bales are a familiar sight across Oklahoma, Texas, and much of the world, stacked along fence lines or dotting pastures.
The modern round baler traces back to the mid-20th century. While early versions of hay-rolling machines appeared in Europe in the 1940s and 1950s, it was a man from Iowa who brought the design into practical use in America. In 1971, Vermeer Corporation, led by Gary Vermeer, introduced the first large round baler that could be mass-produced and widely adopted. His design gathered hay into a chamber, rolled it into a tight cylindrical package, and then wrapped it with twine before ejecting it onto the ground.
This solved a long-standing bottleneck. Small square bales required enormous labor — lifting, stacking, hauling, and feeding by hand. One person with a tractor and round baler could do in hours what once took a crew all day. The new bales were weather-resistant, stored easily outdoors, and reduced spoilage. They also fit well with the larger scale of modern cattle operations.
By the 1980s, other manufacturers such as John Deere, New Holland, and Case IH offered their own models. Improvements included variable chamber sizes, better pickup systems, and stronger tying methods. Round balers quickly became the standard for beef and dairy producers in Oklahoma, Texas, and beyond.
Though models vary, the principle remains the same. The baler picks up cut hay from the windrow and feeds it into a chamber with belts, rollers, or chains. As the hay circulates, it rolls into a tight cylinder. Once the bale reaches the set size — often 4×5 or 5×6 feet, weighing between 800 and 1,200 pounds — the machine stops feeding, and the bale is wrapped for storage.
The result is a dense, weather-resistant package that can be moved with a tractor spear or loader. Unlike small square bales that require dry storage, round bales can be stacked outdoors, especially when wrapped correctly.
The biggest evolution in round baling since its invention has been the way bales are bound. Early machines used only twine, usually sisal or synthetic. Twine is inexpensive and reliable, but it has drawbacks. Wrapping a bale with twine can take up to two minutes, slowing production. Twine also leaves more exposed surface area, allowing moisture to penetrate and spoil hay.
Net wrap was introduced in the 1990s as a solution. Made of high-strength polyethylene, it wraps the bale quickly — usually in 10 to 20 seconds — and covers more surface area. This tighter, more uniform wrap sheds water better and reduces spoilage, especially for bales stored outside. Net-wrapped bales also hold their shape better, making them easier to stack and transport.
Producers must weigh cost against efficiency. Net wrap is more expensive than twine, both in material and in required equipment, but many ranchers find the savings in time and hay quality worth the investment. Twine remains common for operations feeding hay quickly or storing it under cover, while net wrap dominates in large-scale or commercial setups.
In recent years, bale film wrap has also entered the market. Similar to plastic used in silage, film wrap can seal bales almost completely, reducing spoilage even further. While more expensive, it is gaining ground in wet climates and dairies where feed quality is critical.
The round baler is more than a machine — it changed the rhythm of haymaking. Producers can now harvest, bale, and store hundreds of tons of hay with a fraction of the labor once required. In regions like Oklahoma and North Texas, where cattle herds are large and hay is often stored outdoors, round balers became indispensable.
The machine also influenced land use. With the ability to bale quickly and efficiently, ranchers could harvest larger fields and manage forage with precision. It also reduced dependence on hired labor during peak hay season, a major benefit as rural populations declined.
While square balers still have their place — especially for horse hay and small-scale operations — round bales remain the workhorse of modern cattle ranching.
From its introduction in the 1970s to its widespread adoption today, the round baler has proven to be one of the most influential farm inventions of the last century. It solved the labor bottleneck of haymaking, improved storage and feed efficiency, and fit seamlessly into the mechanization of modern agriculture.
Whether wrapped in twine, net, or film, those big round bales are more than just scenery on a country road. They are symbols of an innovation that continues to save time, labor, and feed across ranch country. Like the steel plow, barbed wire, and windmill, the round baler is an invention that permanently changed the way we work the land.
References
Vermeer Corporation. History of the Round Baler. https://www.vermeer.com
John Deere Equipment. Hay and Forage History. https://www.deere.com
Oklahoma State University Extension. Hay Storage and Preservation.
Texas A&M AgriLife Extension. Net Wrap vs. Twine for Round Bales.
Farm Progress. “Round Balers: The Machine That Changed Haymaking.”
Farm & Ranch
Lotebush – Nature’s Quail House
By Tony Dean
Although of little livestock grazing value, this spiny bush has a place in North Texas grazing lands. Probably the most important use of Lotebush is that it is an almost perfect “quail house”. The thorny overhead provides protection from aerial predators like hawks, but the open view at ground level allows quail to see if other predators are approaching.
Lotebush is a native perennial shrub that can grow up to seven feet in height and width. The smooth bark can have dark and light gray patches. The zigzag twigs support greenish stout spines up to three inches long with a dark sharp pointed tip. The small leaves are bluish to grayish green.
Lotebush is in the Buckhorn family and has many other common names, including Condalia, Blue-thorn, Chaparral Bush, Texas Buckthorn, Chaparral Prieto, and Abrojo. The name Condalia is derived from Antonio Condal, a Spanish physician. The roots have been used as a soap substitute, and as a treatment for wounds and sores of domestic animals.
Livestock occasionally browse on new tender growth, especially after a fire, and this sometimes results in mouth soreness in the grazing animal due to the sharp thorns on Lotebush. Lotebush provides fair browsing value for deer. Crude protein level has been tested at 18 to 24 percent in spring, 15 to 20 percent through summer and fall, and 12 to 15 percent in winter.
The small black fruit, about 3/8 inch in diameter, usually ripens in July. It is eaten by quail, turkey, coyotes, small mammals, and many song birds.
Some birds, like the Cactus Wren, will nest in this plant. The Cactus Wren is the largest wren in North America. It lives year round in drier areas of southwestern states and Northern Mexico. It is a true bird of the desert and can survive without standing water. It is very aggressive in protecting its nest.
Lotebush is adapted to clay soils and limestone soils and grows in most areas of the state except extreme East Texas. It also grows in Arizona, New Mexico, and Northern Mexico.
When it is not in dense stands, Lotebush should be protected when planning brush control as it can be a valuable part of our wildlife management efforts. It often appears on areas in the pasture where grass is rather thin, so we are not giving up much grazing production by leaving a few plants. If desired, it can be controlled mechanically or chemically with certain ground-applied chemicals.
Birds and small mammals that feed on our grazing lands often deposit seeds in their droppings from other plants under the canopy of Lotebush. If these seeds germinate, Lotebush can serve as a “protective skeleton” to prevent grazing or browsing on these new plants. Some of these protected plants might be otherwise totally grazed out of a pasture due to preference by livestock or wildlife, so at least we can preserve a seed source within the spiny protection of our Lotebush plants.
Lotebush will root sprout when top killed by fire, but it will take a decade for a plant to again become adequate cover for quail. A plant or group of plants about the size of a pickup works best for quail cover.
Farm & Ranch
Tracks in the Sand
This morning, I walked out into my arena and noticed something that gave me pause. The roping steers had been in there the day before, and even though the ground was wide and level, the sand carried their story. Hoofprints crossed every direction, but in several spots, the same trail was pressed deeper than the rest. Twelve steers had been turned out, yet more than a few chose the exact same path, wearing it down until it stood out from all the other tracks.
Cattle are creatures of habit. Anyone who has spent time around them knows this. They like routine: the same feed, the same water trough, the same shade tree in the pasture. When they are turned loose, they rarely wander without purpose. More often than not, they move together, following the same course as the steer in front of them. There are reasons for this: efficiency, safety, instinct. Walking a beaten path conserves energy, and following the herd is their natural defense. Even in an arena with no real destination, those instincts come through. By the end of a short turnout, you will see the evidence, lines where they have chosen the easiest way to travel and stuck with it.
Out on the range, those lines last longer. Before fences and highways, cattle drives cut deep paths across the land. The Chisholm Trail, which carried herds north from Texas through Oklahoma into Kansas, was walked by millions of cattle in the late 1800s. More than a century later, faint traces of those trails remain, worn so deep by hooves and wagon wheels that the land still carries the mark. On ranches today, you can see the same effect in pastures where cattle walk the same lines between water and grazing. From the ground those trails might look like nothing more than dusty ruts, but from the air, they sometimes stand out as sharp lines winding through otherwise open fields. Cattle do not simply pass over the land; they shape it. Every step adds up.
That simple truth extends beyond livestock. We all make tracks. Our habits and routines are our trails, worn in by repetition, sometimes efficient, sometimes limiting. Like the cow paths, they can serve a purpose, keeping us steady and helping us move forward. But when repeated without thought, they risk becoming ruts, keeping us from stepping into new ground. History offers perspective here too. The old cattle trails built towns and economies, but once railroads and fences changed the landscape, those paths were no longer useful. Sticking to them would have meant going in circles. Progress required something new.
The Tracks We Leave
Standing in the arena, I thought about the kind of tracks I leave behind. Most of mine are not visible in the dirt. They are pressed into my daily life, how I work, the way I handle challenges, the example I set. Some are helpful and worth keeping. Others may have outlived their purpose. The difference comes in knowing when to stay in the track and when to step out of it.
Tomorrow I will drag the arena and smooth it all clean again. The next time the steers are turned in, they will make the same trails. That is their nature. But unlike them, I have a choice. I can decide which paths are worth walking, which ones to change, and what kind of tracks I want to leave for others who might follow.
Tracks tell a story. Sometimes they are only temporary, fading with the next rain. Other times they last for generations, reminders of where herds and people once walked. This morning, the cattle showed me again that even the smallest things on the ranch carry meaning. Their tracks in the arena were not just marks in the sand. They were a lesson: every step matters, and the paths we choose shape more than just the ground beneath our feet.
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