Feb 18, 2021 9:43:49 AM / Brooke Loeffler /

How Much Iron Do Cattle Need?

Micro-minerals are crucial for your herd’s health, even though they are only needed in trace amounts. Here, we will take a closer look at iron, why it is important, and how to stabilize your cattle’s iron intake.

The Importance of Iron

Iron may be the most abundant element on Earth (by weight), but it shouldn’t be that abundant in your feed program. Iron is categorized as an essential trace or micro-element, meaning only a small amount is needed...but that small amount is absolutely critical for your herd’s health.

Nutritionally, What Does Iron Do?

Most of the iron within your cattle is stored in their hemoglobin and myoglobin:

  • Hemoglobin: protein in red blood cells that transports oxygen from the lungs to tissues throughout the body
  • Myoglobin: protein in the muscle cells that stores and delivers oxygen as needed

Iron also helps form important proteins and enzymes that run cells’ power centers in the mitochondria. Since Iron is crucial to bodily functions, let’s look at how to ensure your cattle meet their iron requirements. 

How Much Iron Do Cattle Need?

At growing, finishing, gestating, and lactating stages, cattle should be receiving about 50 mg of iron for every kg of feed/forage they eat. That means, if a cow ate around 13 kg a day, they should be intaking about 650 mg of iron daily. According to the University of Georgia Ag Extension:

“Beef cattle require a number of minerals for optimal growth and reproduction. Selecting the correct mineral supplement is important for maintaining healthy animals, and optimal growth and reproduction. Since high-quality forages and/or grains can furnish a large portion of the required minerals, producers should select supplements that will meet animal requirements...Minerals not provided by feed can be easily and inexpensively supplied with a simple mineral supplement.” 

Mineral and nutrient content in your forage can vary during the year, so starting a mineral program for your cattle is a great way to fill in the gaps in their diet.

Calculating Iron Intake From A Supplement

Supplement packaging usually lists their iron content in parts per million (ppm) or milligrams per kilogram (mg/kg); these measurements are equivalent to each other.

How to calculate the amount of iron in a supplement for your cattle

Here is a simple calculation to convert these metrics to milligrams per ounce (mg/oz):

Multiply your ppm by .0284 to find out how many mg/oz you are offering your cattle.

How To Recognize Iron Deficiencies

The University of Georgia has found that “a mineral deficiency in cattle is difficult to diagnose and can silently rob profits from the herd.” Iron deficiency symptoms include:

  • Anemia
  • Weakened immune response
  • Poor growth and weight gain
  • Loss of appetite
  • Lethargy

If you notice these symptoms in your herd, consult your veterinarian and/or nutritionist for guidance on adjusting their feed/mineral intake. 

You should also pay extra attention to blood consuming pests and insects plaguing your herd.  A single horn fly can feed around 30 times a day on your cattle, drawing blood and crucial nutrients from your animals. Because iron is essential for the formation of hemoglobin in their blood, frequent bites can cause iron deficiencies and anemia. Click here to learn more about protecting your herd from these blood robbing pests.

Redmond Cattle Mineral Supplements

Crafted by nature and harvested by farmers, Redmond Mineral Beef and Dairy Supplements nourish your cattle inside and out. Our rich and expansive mineral profile contains over 60 trace minerals that support a wide range of biological functions in your herd. Redmond mineral salt provides 300 ppm of iron for your cattle to help keep their iron levels in a safe and healthy range. We also offer custom mixes that can be calibrated to meet your herd's specific mineral needs.

Essential minerals cattle need to be healthy

Our mineral salt can be offered free choice or mixed in your cattle’s feed. Click here to learn more about our cattle products and how they have boosted herd health for operations around the country. Give Redmond Minerals a try, both you and your animals will love it!

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