Visit Hay & Forage Grower
Visit Journal of Nutrient Management
Subscribe to Hoard’s Dairyman
X
Sections
News
News
Washington Dairygrams
Intel
Milk Check Outlook
Markets
Special Intel
DairyLivestream
Buzz
E-Sources
E-Sources
Dairy Food Research
Animal Care
Calf & Heifer
Crops/Forages
Dairy Brain
Dairy Policy
Milk Quality
Feed & Nutrition
Reproduction
In Hoard's
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
Blogs
HD Notebook
Farm Blog
Guest Blogs
Hoards at Expo
Youth
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
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
Webcasts
Herd it Here Podcasts
DairyLivestream Webcasts
DairyLivestream Podcasts
Webinar Registration
Upcoming Webinars
Webinar Archives
About Us
About Us
Hoard History
About Us
Editorial
Marketing/Advertising
Hoard's Dairyman Farm
Hoard's Creamery
Contact Us
en español
Hay / Forage Grower
Journal of Nutrient Management
Subscribe
Close
News
Washington Dairygrams
Intel
Milk Check Outlook
Markets
Special Intel
DairyLivestream
Buzz
E-Sources
Dairy Food Research
Animal Care
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
Webinar Archives
About Us
Hoard History
About Us
Editorial
Marketing/Advertising
Hoard's Dairyman Farm
Hoard's Creamery
Contact Us
en español
Home
All Articles
Hernando Lopez
Hernando Lopez
The author is a reproductive specialist at ABS Global.
We can all become better heat detectors
Reproduction E-Source
April 16 2012
