Printable instructions in English are available for both Bull Central® and Perfect Match®. If you have questions about using these services, please email info@aAaWeeks.com or call the aAa® office at 1-802-775-4980 for assistance.
The “aAa® User Manual and Study Guide” is a 24-page booklet containing most of the information found on this website as well tips for using Bull Central® and step-by-step instructions for using Perfect Match®. It is available free of charge from the aAa® office or from your analyzer.
“The aAa® Method” is a 55-page booklet with full-color illustrations published by Willem van Laarhoven, a dairy consultant and owner of Valacon Dairy in the Netherlands. This technical booklet describes aAa® principles, use and results. The original Dutch edition as well as translations into Danish, English, French and German are available for a small charge from the aAa® office or from your analyzer.
“Creating Balance Between Form & Function: The Story of aAa® Animal Analysis, Bill Weeks and Skyway Farm” by Philip Hasheider is a 280-page, soft-cover book with black and white illustrations and photos published in 2010. It contains a wealth of detailed information about the life and work of aAa® founder Bill Weeks. This book is available from the aAa® office for $40 postpaid in the U.S. (or $35 USD plus actual shipping cost outside the continental U.S.)
Follow us on Facebook at “Animal Analysis Associates – aAa®” or on Twitter @aAaWeeks. The Weeks® & aAa® User Forum is a private Facebook group where aAa® users and followers can discuss topics related to aAa® and dairy cattle breeding.
- Balanced Cows
- The Hoorn Brothers Melkvee February 2017
- 10 Questions for Jan Schilder Holstein Intl January 2016
- Cows Are Allowed to Develop in Veeteelt November 2015
- John de Vries 'I Enjoy Every Day' in Melkvee October 2015
- Breeding for balance with aAa analysis in Progressive Dairyman 2015
- The aAa system - Where Have All The 6 Bulls Gone in Holstein International 2014
- 25 years of aAa in the Netherlands in Melkvee 2014
- Balance Your Cows in Bionews 2010
- Bob Miller aAa speech 2010
- Remembering Bill Weeks and aAa by Merlin Carlson 2010
- For years no bad heifers anymore (English translation) in Veldpost 2009
- Durability breeding is a false cry (English translation) in Melkvee 2006
- An Interview with Mr. William A. Weeks 1984
- A Dozen Years with aAa by Leo Blanding 1962
- A System for Making Selective Matings by W. A. Weeks 1953