Rate of Gain for a Market Steer: How to Track It and What Contests Measure

Rate of gain is one of the most honest numbers in a steer project. Looks can fool a judge, and a good hair day can hide a lot, but a scale does not lie. Average daily gain tells you whether your feeding program is working, whether the steer is healthy and whether he will be near the weight you need by show day. Some shows even run rate-of-gain contests that reward the exhibitor whose steer gained the most efficiently over a set period.

This guide explains how to measure and calculate rate of gain, what affects it and how contests typically work. Contest rules differ by show, so always read yours. If you want to find junior beef contests near you, agriculture.directory can help you find agriculture events in your area.

The Simple Math

Average daily gain, usually shortened to ADG, is the weight gained divided by the number of days between weighings.

1. Weigh the steer on a certain date and record the weight.
2. Weigh him again on a later date.
3. Subtract the first weight from the second.
4. Divide by the number of days between weighings.

For illustration only, if a steer weighs 750 pounds on one date and 840 pounds 30 days later, he gained 90 pounds in 30 days, or 3 pounds per day. Your numbers will differ, and what counts as good depends on the animal's age, weight, genetics and feeding program. Extension sources such as Nebraska Beef publish typical growth ranges.

Weigh the Right Way

• Use the same scale if you can. Scales differ, and mixing scales makes gain look better or worse than it is.
• Weigh at the same time of day. Many feeders weigh in the morning before feeding.
• Keep conditions consistent. Fill, shrink and water intake change the weight.
• Record immediately. Write the date and weight in your log, not on your hand.
• Weigh regularly. Every two to four weeks gives a useful trend.

What Affects Gain

• Genetics. Some calves grow faster than others.
• Feed quality and amount. Energy and protein must meet needs.
• Water. Poor water intake limits feed intake.
• Health. Illness, parasites and stress slow growth.
• Weather. Heat reduces intake, and cold raises energy needs.
• Stress and handling. Rough handling and changes in routine slow gain.
• Age and stage. Growth rate changes as the animal matures and fattens.

Reading the Trend

A single weigh-in is a snapshot. A trend over several weeks tells the story. If gain slows suddenly, look for a cause: a feed change, heat wave, sickness, a worn tooth or a calf that has been bullied away from the feed bunk. If gain is steady, you are on track. If gain is too fast, check body condition, since gaining too much too early can leave you with an overfat steer.

What If Gain Stalls?

1. Check the steer's health: temperature, appetite, manure and attitude.
2. Check water access and quality.
3. Check feed quality, storage and amounts.
4. Look at the pen, shade and heat load.
5. Talk to your vet or advisor before changing the ration dramatically.

The Merck Veterinary Manual covers common causes of poor growth in cattle.

How Rate-of-Gain Contests Work

Some shows or programs hold rate-of-gain contests. Typically, steers are weighed at an official start date and again at a later date, often at the show. Average daily gain is calculated, and the animals with the highest gain win. Some versions combine gain with other factors like carcass quality or records. Rules govern how animals are identified, what scales are used and eligibility, so read the contest rules carefully. Because gain contests reward growth, they reward good management, not shortcuts.

Keep It Honest

Do not try to manipulate weights with water loading, gut fill tricks or other practices that violate show rules or animal welfare. Beyond being unethical and sometimes against the rules, such tricks can harm the animal. The Beef Quality Assurance program emphasizes responsible care.

Keep a Simple Gain Log

A clipboard in the barn and a pencil are all you need. Draw a table with five columns: date, weight, days since the last weighing, pounds gained and average daily gain. Fill it in each time the steer is weighed, and add a notes column for anything unusual, such as a feed change, a heat wave or a vet visit. After a few weeks, you will start to see patterns, like gain slowing during hot spells or jumping after you improved the hay. Many 4-H and FFA record books ask for exactly this information, so the log doubles as homework. A graph of weight over time, drawn by the exhibitor, also makes a good addition to a project display.

Compare With a Plan, Not With the Neighbor

It is tempting to compare your steer's gain with the neighbor's calf at the next pen. But calves differ in age, frame, genetics and feed. A steer that gains a little less but stays healthy, sound and well-balanced is often a better project than one pushed to a fast number. Compare your steer against your own plan and the trend of his own weights, and use outside numbers only as a rough guide.

Use Gain to Make Decisions

Gain data helps you decide whether to adjust feed, when to expect the steer to hit target weights and when to schedule the show prep. It also builds a record book entry that shows what you learned. Keep a simple table of dates, weights, days and ADG.

Common Mistakes

• Not weighing. You cannot manage by eye.
• Using different scales. Gain becomes meaningless.
• Chasing gain with grain alone. Health and water matter.
• Ignoring a stall. Find the cause early.
• Cheating. It is wrong and risky.

Farm.fm's page on the world of beef cattle offers general background, and for a laugh, see farm.fm's humor piece on cattle prices swinging while ranchers blame Wall Street.