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Home » Authors » Ryan Leiterman
Ryan Leiterman

Ryan Leiterman

Director of Technical Services / Crystal Creek Natural LLC
Email Ryan Leiterman
Articles

ARTICLES

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3 common calf barn ventilation questions answered

January 12, 2022
Ryan Leiterman
I have been fascinated with calf barn ventilation for more than a decade, to the point where I have made its study the focus of much of my professional career. Calf raisers around the world often have the same questions when it comes to ventilation, and this article will discuss the three most common calf barn ventilation questions I receive. 
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Lessons learned from 10 years in a family business

October 19, 2021
Ryan Leiterman
I spent nine years in college before entering into what my dad refers to as the real world. It was only after college I realized how little those nine years had prepared me for the road that lay ahead.
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4 air exchanges per hour: A history of calf barn ventilation and an industry that is slow to change

November 6, 2020
Ryan Leiterman

When discussing calf barn ventilation, invariably the topic of using four air exchanges per hour for cold-weather ventilation will come up. After all, we wouldn’t want “too much” of that cold air in the barn. Or would we?


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011320 leiterman smoke from tube

Calfhood pneumonia: When is it related to ventilation and when is it something different?

January 13, 2020
Ryan Leiterman
Calfhood pneumonia can be frustrating to deal with. Understanding where the problem originates is the first step in creating a plan to combat it. Most cases of calfhood pneumonia can be placed into one of two broad categories: environmental causes and contagious causes.
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Drafts: A calf’s best friend or greatest foe?

August 23, 2019
Ryan Leiterman
Drafts and pre-weaned calves – rarely is a topic so misunderstood. Many calf raisers are uncomfortable with the topic of drafts on calves, regardless of the outside temperature. Most people believe drafts are to be avoided at all costs.
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Calves and bicycle wheels: A systematic approach to troubleshooting pre-weaned calves

July 31, 2019
Ryan Leiterman and Lorrie Meister
On Oct. 11, 1826, Theodore Jones of London, England, received a patent for what he called “wire wheels.” Jones found if he added wires, or what we now call spokes, to a circular rim, the wheel could bear greater stress while maintaining its round shape.
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Calves and bicycle wheels: A systematic approach to troubleshooting pre-weaned calves

May 15, 2019
Ryan Leiterman and Lorrie Meister
On Oct. 11, 1826, Theodore Jones of London, England, received a patent for what he called “wire wheels.” Jones found if he added wires, or what we now call spokes, to a circular rim, the wheel could bear greater stress while maintaining its round shape.
Read More

Winter calf barn ventilation: Can calves have too much fresh air?

October 3, 2017
Ryan Leiterman
Cold temperatures are here and winter is quickly approaching. As the temperatures drop, calf barns are closed up and the ventilation rates are turned down. As an industry we do this reflexively, but is it what's best for the calves?
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Crank up your fans to improve summer calf performance

May 24, 2017
Ryan Leiterman
Heat stress is a major concern for calves. Research has proven calves suffer from heat stress in much the same way cows do. A calf’s temperature threshold can be easily reached during summer months.
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Keep calves off the temperature roller coaster

March 3, 2017
Ryan Leiterman
Spring and fall weather conditions often present calf raisers with the challenge of fluctuating temperatures. The rapid and ongoing transition from warm days to cold nights creates a temperature roller coaster that can increase calfhood respiratory disease rates.
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