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E-Sources
Dairy Food Research
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Calf & Heifer
Crops/Forages
Dairy Brain
Dairy Policy
Milk Quality
Feed & Nutrition
Reproduction
In Hoard's
Milk Check Outlook
Bull List
Feature Stories
FARM Continuing Education
Cow Judging Contest
Classifieds
National Producers Exchange
Handy Hints
Showcase Directory
Subscribe
HD Digital Database
Blogs
HD Notebook
Farm Blog
Guest Blogs
Hoards at Expo
Youth
Youth Resources
Showmanship
NEW! 2023 CJC Classes & Placings
2-Year Colleges
4-Year Colleges
Scholarships
Cow Judging Contest
Dairy Judging Corner
Internship
Clubs/Organizations
Youth Quizzes
Bookstore
Featured Items
Christmas Corner
Book as Gifts and More
Books & Video for Youth
PDF Files
Animal Health
Reproduction
Farm Business
Feed & Nutrition
Milk Quality
Spanish Language
Building Plans
Subscribe
Webcasts
Herd it Here Podcasts
DairyLivestream Webcasts
DairyLivestream Podcasts
Webinar Registration
Upcoming Webinars
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Isaac Salfer
Isaac Salfer
The author is a graduate assistant at Pennsylvania State University working with Kevin Harvatine.
Are your cows seasonal workers?
Features
Jan. 15 2019
