Grant Dewell
Extension Beef Veterinarian and Associate Professor

515-294-2822
gdewell@iastate.edu

Articles by this author:

The rapid and extreme increase in temperatures may be an unwelcome change for some cattle.

With the temperature warming up early this year mud is going to persist in cattle lots and pastures throughout the spring. For spring calving operations mud can be deadly.

In an effort to protect human and animal health from the rise of antibiotic resistance, the Food and Drug Administration has issued new guidelines that will regulate medically important antibiotic use in animal feed.

Dewell says this early heat event is a good opportunity to make sure that producer mitigation strategies will be functional for the rest of the summer.

A new publication from ISU Extension and Outreach will help producers identify signs of scours so they can treat calves effectively and learn a variety of management methods to help minimize future problems.

Producers should monitor their herds for signs of hypomagnesaemia (grass tetany), be ready to treat it and work to minimize the causes of the disease, according to a new Iowa State University Extension and Outreach publication.

Guidelines for choosing the correct vaccination program and a timeline for giving those vaccines are laid out in a new Iowa State University Extension and Outreach publication.

Properly preparing for hot and humid weather conditions is vital to maintaining beef cattle herd health. Iowa State University Extension and Outreach beef veterinarian Grant Dewell has five steps to follow.
 

Three new beef-health publications are now available through the Iowa State University Extension and Outreach online store. Grant Dewell, extension beef veterinarian, authored the publications and said each addresses a specific concern.

The 2012 drought and subsequent low quality hay supplies for winter feeding mean cows don’t have normal liver stores of vitamin A, and without supplementation cows will potentially be deficient in vitamin A. That can lead to a variety of calf health problems.