College of Agriculture and Life Sciences

DHI Notes...

 

Sept 2009 | Reproduction to be theme of Area Dairy Conferences | Bennet Cassell

Area dairy extension agents and specialists from Blacksburg have been busy in recent weeks planning the 2010 Area Dairy Conferences. Dates and general locations are below. We’ll get the word out on precise locations later in the fall.

  • January 12 – Southside – location TBA
  • January 13 – Rocky Mount
  • January 14 – Abingdon
  • January 19 – Rockingham County
  • January 20 – Culpeper County

Dr. Ray Nebel, Senior Reproduction and Herd Management Specialist for Select Sires and former extension specialist for reproduction in Virginia will be the keynote speaker at each location. Dr. Nebel has extensive experience solving herd reproductive problems across the country and is well known to many Virginia producers. His presentations are always on target and enjoyable as well. Other presentations will focus on genetic options, cow comfort, health, and management strategies to optimize reproductive performance of the dairy herd. The time appears to be right for an emphasis on reproductive management, as economic conditions are changing on Virginia dairy farms. The table shows that Virginia dairy farmers have improved interval to first breeding and days open compared to last year. Changes in these two averages are gradual, as days open for cows in herds a year ago was affected by reproductive management decisions dating back to 2007. That’s ancient history compared to what dairy farmers did to get cows bred last week. Reproductive performance has changed in response to public perception of bST use, synchronization programs, cull cow values, production costs, and the price of milk as well as other factors. The average dairy herd in Virginia in August 2009 is bigger by 7.5 cows, at 166.7, than a year ago. And there are 17 fewer of them, 308 total, on supervised DHI test.

 


State DHI averages for important management areas in August 2009:

Management area

August 2009

Change from last year

Rolling herd average milk
21583
-22
Peak yield in heifers
75
0
Days to first breeding
93
-4
Days open
155
-12
Net Merit of proven service sires
424
+88
Herd turnover less dairy sales (%)
28%
+1
Monthly average SCS
3.0
-0.1
Feed cost per cwt. (milking cows)
$7.03
-$0.05
Milk blend price
$13.54
-$7.54

Bennet Cassell
Genetics and Management


VTDairy | VT Dairy Science | Virginia Tech | Virginia Cooperative Extension
Virginia Agricultural Experiment Station | College of Agriculture & Life Sciences | CALS Calander

Please send any questions or comments to: webmaster
Last Updated: Thursday, September 3, 2009
Contact Info


 

College of Agriculture and Life Science Department of Dairy Science Go to VT Dairy Home Virginia Tech Virginia Cooperative Extension