Originally all Maine-Anjou cattle were Horned, and Red & White. The majority of purebred Maine-Anjou are still horned, but that number is dropping every day.
You Do Not want to show your heifer with a nub. Your calf may be scurred, and may have it only on one side. You can take her to a Vet, who will probably use a burning iron. I use this method all the time up to about 5 month old calves. It does hurt, but they get over it in about five minutes. It usually takes about 30 days for the nub and scab come loose, but after that, you can shape her poll just as if she were born smooth polled. Here's the idea:
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Hot Iron Method
Both the 120 volt electric and the gas-fired irons will destroy the horn producing skin at the base of the horn. This technique works well for calves up to 12 weeks old. However, the technique requires good restraint of the calf. Except in very young calves, blocking the nerve to the horn is recommended. There are several sizes of dehorning irons. The proper size is one where the burner makes a complete ring around the base of the horn. Use a short extension cord as voltage drops with a long cord, limiting the amount of heat generated by the dehorner.
Technique
1. Wear gloves to protect your hands.
2. Hold the calf’s ear out of the way to keep it from being burned.
3. Preheat the dehorning iron to a red colour. Both electric and gas irons work best when they are "red" hot.
4. Place the tip of the burner over the horn and apply slight pressure. When the burning hair begins to smoke, slowly rotate the dehorner by twisting your wrist.
5. Continue the application of heat for 10 to 15 seconds. Do not leave the dehorner in place for much longer, especially in young calves. Heat can be transferred through the thin bones of the skull and damage the calf’s brain.