Latest News From
Mark Z. Johnson
Is It Time to Re-Program Your Cowherd?
Now is the time to take a close look at our business model and specifically the “production factory” in the cow-calf business, says Mark Johnson of OSU.
March 10, 2023
Addressing Calf Scours with Pasture Management
A management plan using clean calving pastures can help prevent direct contact between older calves and younger calves and minimize the potential for sickness to occur.
February 6, 2023
Calf Scours and Calving Pasture Rotation
Calf scours results in sickness, poor performance, medical expenses and death. Here's a look at the complex disease and one management method found to decrease and even prevent transmission.
February 6, 2023
What's A Good Bull Worth?
Determining the value of a bull is an important question, and one that is a challenge to answer. Mark Johnson, DVM, Oklahoma State, offers some calculations to help determine a value.
November 23, 2022
Act Now To Add Value To Weaned Calves
Producers can capture added value by preconditioning and weaning their calves. Along with weaning at least 45 days, preconditioning includes several practices that add value for both the buyer and seller.
June 8, 2022
Creep Grazing Offers Benefits
Creep grazing programs can produce additional calf gains using forage rather than the traditional grain-based creep diets. There are many ways to adapt this system to each individual situation.
June 2, 2022
The Importance of Colostrum
Colostrum plays a large role in the health of a newborn calf. Preparing for calving season starts well before the first calf hits the ground.
January 6, 2022
Preparing Cows for Winter and Spring Calving
Reproductive efficiency is highly correlated to nutrition. The target Body Condition Score going into calving season is 5.5 for the mature cow and 6 for first calf heifers.
November 9, 2021
Management Practices for Cows at Weaning (Part 1)
Weaning is time to focus time and management on ways to eliminate stress, maintain health and maximize the value of weaned calves, but also a critical time to manage the cow herd.
September 20, 2021
Fall Calving in Hot Weather
Early fall calving herds face a challenge from the high temperatures of late summer. The primary challenge is the impact those temperatures can have on newborn and young calves.
August 31, 2021
Bull Management After the Breeding Season
In most spring calving herds, the breeding season begins in the spring or early summer. Maintaining a 60- to 90-day breeding season can be one of the most important management tools for cow-calf producers.
August 10, 2021
Selection for Maternal Performance
This week we discuss the EPDs to consider when selecting bulls that will be used as rotational sires. A rotational sire is a bull from which daughters will be retained to develop as replacements in our cowherd.
April 5, 2021