We use cookies to provide you with a better experience. By continuing to browse the site you are agreeing to our use of cookies in accordance with our Cookie Policy.
  • Sign In
  • Create Account
  • Sign Out
  • My Account
subscribe / renew
  • Livestock
    • Beef
    • Dairy
      • Canada
      • U.S.
    • Sheep & Goats
    • Other Livestock
  • Crops
    • Grains
      • Barley
      • Wheat
    • Hay
    • Pasture
    • Ensiled Forages
  • Equipment
  • Magazines
    • Progressive Dairy US
    • Progressive Dairy — Canada
    • Progressive Dairy – en francais
    • Progressive Forage
    • Progressive Cattle
    • Progressive Cattle - Canada
    • Idaho Ag Proud
  • Blogs
  • Buyers Guide
  • Advertise
  • Ask AgProud

Progressive Dairy

Progressive Dairy Canada

PD Canada en Francais

Progressive Cattle

Progressive Cattle Canada

Progressive Forage

Agproud Idaho

Home

Home » Authors » Derek Nolan

Derek Nolan

Dairy Extension Specialist / University of Illinois
Email Derek Nolan
Articles

ARTICLES

62526-nolan-cooley.jpg

Dollars down the drain: What one case of mastitis can cost you

Mastitis can hit your pocketbook with both direct and indirect costs. Review some causes of each to ensure you're not surprised by either.
December 26, 2025
Derek Nolan

We often hear that mastitis costs the U.S. dairy industry $2 billion per year. But what does this mean on a case level?


Read More
62033-nolan-getty.jpg

Battling Klebsiella: Tools to keep in your toolbox

A review on Klebsiella: How, where and why it infects your cows and best methods of prevention.
September 24, 2025
Derek Nolan

Klebsiella is a difficult bacteria to deal with because infections can come on quickly without warning and have the potential to be fatal. Understanding how it spreads and how to prevent it is important for protecting herd health.


Read More
59763-mcbride-illustration.coreylewis.jpg

Using milking speed information can lead to dairy profitability

Understanding what influences milking speed, collecting and utilizing data can lead to improving milk speed.
July 11, 2024
Derek Nolan

Efficiency is key to making the milking system as profitable as possible. Parlor turns can greatly impact milk collected per stall, and milkabilty measures of individual cows, like milking speed and milking duration, will impact how quickly cows make their way through the parlor.



Read More
59218-nolan-petri.jpg

Back to the basics: Gram-negative vs. gram-positive mastitis

A review of the differences between gram-negative and gram-positive mastitis pathogens.
March 11, 2024
Derek Nolan

Determining the infecting bacteria type allows for a more guided treatment decision. Not all producers can work with a veterinarian to culture milk samples, and results from on-farm culturing can be difficult to interpret. However, being able to at least categorize the infecting pathogen can provide valuable information.


Read More
58849-nolan-parlor-dixon.jpg

Who's taking up parlor space?

Evaluating cow value from a parlor perspective can improve your bottom line.
January 26, 2024
Derek Nolan

Economic culling decisions can be very complex and challenging to make. Ensuring every cow that passes through the milking system holds value will help lead to increased farm profitability.


Read More
Ryan Hoffman monitoring milking

Using milking duration and milking speed to make and evaluate management decisions

Evaluating current milking settings can improve production in your parlor.
March 25, 2023
Derek Nolan

When is the last time you evaluated milking settings in your parlor? Read our latest article to learn more.


Read More

Make better milk quality management decisions with more data

June 29, 2018
Derek Nolan
The current state of the dairy industry is putting pressure on dairy producers. Excess milk in the market has allowed dairy processors to be more selective with the milk they are purchasing.
Read More

Cow comfort key to high-quality milk, award-winning dairy producers say

May 2, 2018
Derek Nolan
During the 2017 Southeast Quality Milk Initiative Meeting, the milk quality award winners sat down in a producer panel to discuss how they achieve award-worthy quality milk in the southeastern U.S. When asked if they had to choose the one thing that has led to their milk quality success, all agreed that cow comfort was at the top of the list.
Read More

Co-ops on milk quality: ‘We must continue to decrease SCC’

January 26, 2018
Derek Nolan
During the Fifth Annual Southeast Quality Milk Initiative Meeting held in Nashville, Tennessee, in November 2017, three representatives from two milk cooperatives sat down in an open panel to discuss current trends of the U.S. milk market.
Read More

Southeastern producers discuss SCC and high-quality milk

January 18, 2017
Derek Nolan
The Southeast region of the U.S. consistently has the highest average somatic cell count (SCC) of any other region in the country, but over four years of the Southeast Quality Milk Initiative project, one thing has been evident: Many dairy producers in the Southeast are producing high-quality, low-SCC milk.
Read More
View All Articles by Derek Nolan
  • RECENT ARTICLES
  • PD webinar

    [Webinar] Dairy Market Update June 2026: Protect What You've Built Before July 1

    June 5, 2026
  • Another summer of water worries

    June 5, 2026
    • 3 things you need to know about bedding with manure solids

      June 5, 2026

FREE NEWSLETTERS

Award-winning coverage of in-depth news and analysis to make your business more profitable.

SIGNUP TODAY
Advertisement
THE GUIDE

How do I get my company listed in your Buyers Guide? 
Submit a request to be listed for FREE in the Buyers Guide here.

Why can I only see so many articles before I have to register for the site?
Find out why here.

SUBSCRIBE to Leading Industry Magazines

Award-winning coverage of in-depth news and analysis to make your business more profitable.

Subscribe/Renew
Advertisement

I'm looking for ________

Find the right products and services for your farm, ranch or operation.

CHECK OUT OUR BUYERS GUIDE
Advertisement
  • FEATURED PODCASTS
  • [Podcast] Performance By Design: Science-driven solutions for today’s calf raisers

    Progressive Dairy
    Podcasts
    SPONSORED BY IFF Animal Nutrition & Health
  • [Podcast] What it takes to raise great heifers and build a winning team culture with Jason Shamburg and Nic Schoenberger

    Progressive Dairy
    Podcasts
PERSONALIZED CONTENT
Create an account and see website content tailored to your operation.  It only takes a few seconds!
SEE RECOMMENDATIONS NOW!
Copyright © 2026 Progressive Publishing

MORE INFORMATION
  • About Us
  • Terms & Conditions
  • Privacy Policy
  • FAQs
  • Advertise
  • Shop
  • Stats Posters

OUR MAGAZINES
  • Progressive Dairy
    • Facebook
    • Twitter
    • Linkedin
  • Progressive Dairy — Canada
    • Facebook
    • Twitter
    • Linkedin
  • Progressive Dairy — en français
    • Facebook
  • Progressive Cattle
    • Facebook
    • Twitter
    • Linkedin
  • Progressive Cattle — Canada
    • Facebook
    • Linkedin
  • Progressive Forage
    • Facebook
    • Twitter
  • AgProud — Idaho
    • Facebook
    • Linkedin

CONTACT INFORMATION

Progressive Publishing
238 West Nez Perce (physical)
PO Box 585 (mailing)
Jerome, ID 83338

   

info@progressivepublish.com
(800) 320-1424
(208) 324-7513 (Main)
(208) 324-1133 (Fax)