Get the Best of Both Worlds With Crossbreeding

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We’ve all heard the horror stories of purebred dogs and their health problemscrossbreeding-why-the-interest while mutts seem to live forever. Obviously, if you are a purebred breeder, you have an incredible amount of responsibility to uphold the characteristics of a breed. However, if you are a typical commercial cattlemen, let’s take a look at how these thoughts can translate to our cattle herds.

        Why Crossbreed?

Crossbred cattle can have some significant advantages over the use of one breed in your cattle. The two main benefits include hybrid vigor as well as combining the best strengths of the various breeds used to form the cross.

  • Hybrid vigor, also known as heterosis, explains the superiority in performance of the crossbred animal compared to the average of the straightbred parents. Hybrid vigor is most noticeable in low heritable traits, such as growth rate, and reproductive efficiency.
  • The most important advantage for crossbreeding is found in the crossbred cow. Maternal heterosis results in improvements in fertility, calf livability, calf weaning weight and cow longevity.
  • Combining strengths between breeds is also an important reason for crossbreeding. For example, British Breeds (Angus & Hereford) are typically high in marbling potential where Continental breeds (Simmental, Charolais, Gelbveih) have offspring that have desirable levels of marbling and yield grade. Knowing the advantages of the breeds before you breed is important.
  • True crossbreeding is a deliberate decision to produce cattle that have a known genetic make up to pass genetics from parents to produce a calf with desirable characteristics.
  • Unfortunately, it is hard to keep a consistent ratio of breeds in a beef herd, especially a small one. Take a “Black Baldy” for instance, is a 50/50 cross of Hereford and Angus parents. To keep a consistent ratio in the herd, you must have a terminal program in which you keep no offspring back in the herd.
  • When crossbred offspring are rebred, the next generation of calves will display characteristics anywhere along a scale between the two parents

        Mixed Breeding

Mixed breeding is similar to crossbreeding, combining multiple breeds, but with one major difference: there is no strict adherence to breed ratios within the herd. Managing a mixed breed cattle herd is pretty simple, typically keeping whatever replacements you choose and running cattle as a single herd. However, the calves will have varying traits, body sizes, growth rates, and environmental adaptations. The genetic randomness of a mixed breed herd can create a lot of inconsistency in the calf crop. Additionally, the hybrid vigor drops significantly after the first generation cross. You can still breed to gain desirable genetics, however any typical bump in pounds for calves or maternal traits are typically diminished after the initial cross.

         Why Does It Matter?

This does not mean that having a mixed breed herd is “bad.” However, you can make more informed decisions if you know primarily the genetic makeup of your cow herd. Knowing the major breeds of your mixed breed cow herd can definitely have its advantages. The biggest advantage comes in making herd sire selections. Knowing what the majority of your cattle lack as far as desirable characteristics should drive your bull selections. Remember that a bull is only half of the equation and that your cow herd is a very important part of producing desirable calves. Additionally, having a uniform calf crop is desirable, especially to those marketing calves off the farm. Having a consistency to a calf crop year after year can only build the reputation of your herd and also lead to a desirable product.

If you would like more information on developing a crossbreeding program or information on selecting a bull to meet the needs of your cow herd, please contact your local Extension Agent for assistance.
NCSU Extension

Written By

John Cothren, N.C. Cooperative ExtensionJohn CothrenCounty Extension Director, Wilkes & Interim CED, Ashe Call John Email John N.C. Cooperative Extension, Wilkes County Center
Updated on Sep 13, 2021
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