Researchers tested whether a special type of corn called high-moisture corn could help young beef cattle grow better. They fed 32 young bulls different amounts of this corn mixed into their regular diet over 120 days. The bulls that ate the most high-moisture corn (45% of their corn intake) grew noticeably heavier and healthier than those eating regular corn. The special corn also changed how the bulls’ stomachs work, making them better at digesting food and absorbing nutrients. This discovery could help farmers raise healthier, bigger cattle more efficiently.
The Quick Take
- What they studied: Whether feeding young cattle a special type of corn (high-moisture corn) instead of regular dried corn would help them grow bigger and healthier
- Who participated: 32 young Simmental bulls (a beef cattle breed) that weighed about 540 pounds at the start of the study
- Key finding: Bulls that ate 45% high-moisture corn grew significantly heavier by day 120 compared to bulls eating regular corn, and their stomach bacteria became more diverse and healthy
- What it means for you: If you raise cattle, using high-moisture corn could help your animals grow faster and stronger. However, this research is specific to young bulls and may not apply to other types of livestock or older cattle. Talk to a veterinarian before making major diet changes for your animals.
The Research Details
Scientists divided 32 young bulls into four groups. One group ate regular corn (the control group), while the other three groups ate diets where regular corn was replaced with high-moisture corn at different amounts: 15%, 30%, and 45%. High-moisture corn is corn that hasn’t been completely dried out, so it stays softer and may be easier for cattle to digest. The researchers weighed all the bulls at the beginning and then again at 30, 60, and 120 days. At the end of the study, they collected stomach fluid samples to examine how well the cattle were digesting food and what kinds of bacteria were living in their stomachs.
This research design is important because it tests different amounts of the new corn type rather than just comparing it to regular corn. This helps farmers figure out the best amount to use. By looking at stomach bacteria and digestive chemicals, the researchers could explain exactly why the cattle grew better, not just that they did.
This study was published in a peer-reviewed scientific journal, meaning other experts checked the work before it was published. The researchers used a controlled experiment with random assignment of animals to groups, which is a strong research method. However, the study only tested one breed of young bulls, so results might be different for other cattle types or ages. The sample size of 32 animals is reasonable for this type of animal research.
What the Results Show
By day 120, the bulls eating 30% and 45% high-moisture corn weighed significantly more than the control group eating regular corn. The bulls eating 45% high-moisture corn showed the biggest improvement in growth. The researchers also found that as they added more high-moisture corn to the diet, the stomach environment became slightly more acidic (lower pH), which is actually good for digestion. The stomach bacteria in bulls eating high-moisture corn became more diverse and varied, which generally means a healthier digestive system. The 45% high-moisture corn group showed the most dramatic changes in stomach bacteria diversity.
When researchers looked at the chemical compounds in the stomach fluid, they found 52 different metabolites (chemical products made during digestion) that changed in the 45% high-moisture corn group. These included special fats called phospholipids and amino acids like glutamic acid and taurine. These chemicals are involved in important digestive processes like breaking down fats, managing bile (digestive fluid), and processing proteins. These changes suggest the cattle’s bodies were working more efficiently to get nutrition from their food.
Previous research has shown that high-moisture corn can sometimes improve how cattle digest food compared to regular dried corn. This study confirms those findings and goes deeper by showing exactly which stomach bacteria and chemical processes improve. The results align with what scientists know about how different types of corn affect cattle digestion, but this is one of the first studies to look at so many different levels of replacement and examine the stomach bacteria in detail.
This study only tested young Simmental bulls, so the results might not apply to other cattle breeds, older cattle, or female cattle. The study lasted 120 days, so we don’t know if the benefits continue over a longer period. The research was done in a controlled farm setting, so real-world results on different farms might vary. The study didn’t look at the cost of high-moisture corn compared to regular corn, which is important for farmers deciding whether to make this change. Finally, while the study shows that 45% replacement worked best, it didn’t test even higher replacement levels.
The Bottom Line
If you raise young beef cattle, consider testing high-moisture corn at about 45% replacement of regular corn to potentially improve growth rates. This recommendation has moderate confidence because it’s based on one well-designed study. Start with smaller amounts and monitor your cattle’s health and growth before making a complete switch. Consult with a veterinarian or animal nutritionist before making major diet changes, as results may vary based on your specific farm conditions, cattle breed, and other factors.
Cattle farmers and ranchers raising young beef cattle should pay attention to this research. It’s most relevant for people raising Simmental cattle or similar beef breeds. The findings may not apply to dairy cattle, older cattle, or other livestock. Feed companies and agricultural advisors might also find this useful for developing new cattle feed products.
Based on this study, you could expect to see noticeable growth improvements within 30-60 days of switching to high-moisture corn. The biggest benefits appeared by day 120 (about 4 months). However, individual results will vary based on your specific cattle, farm conditions, and how the feed is prepared.
Want to Apply This Research?
- If using a livestock management app, track your cattle’s weight weekly and record the percentage of high-moisture corn in their diet. Compare growth rates between groups eating different corn types to see if you’re getting the expected improvements.
- Start by replacing 30-45% of regular corn with high-moisture corn in your cattle feed. Monitor weight gain, appetite, and overall health for 60 days. If results are positive, you can continue; if not, adjust the amount or consult a veterinarian.
- Create a simple tracking system that records: (1) weekly or bi-weekly cattle weights, (2) feed type and amount given, (3) visible health indicators like coat condition and energy level, and (4) any digestive issues. Compare these metrics between cattle eating different corn types over a 4-month period to determine if high-moisture corn is working for your herd.
This research applies specifically to young Simmental bulls and may not apply to other cattle breeds, ages, or types of livestock. Results can vary significantly based on individual farm conditions, climate, water quality, and overall herd management practices. Before making any changes to your cattle’s diet, consult with a veterinarian, animal nutritionist, or agricultural extension specialist who understands your specific situation. This information is for educational purposes and should not replace professional veterinary or agricultural advice. Always monitor your animals closely when introducing new feed types and adjust based on their individual response.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.