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Reproductive Management
 
Gestation Table and Calculator

Checklist for reproductive management - evaluating cattle records, estrus detection, and factors that affect conception.  You will also find information on nutrition programs and feeding management.

Management and Economics of Natural Service Bulls in Dairy Herds - Bulls continue to be used on dairies and this paper by Risco and colleagues at the University of Florida gives you some things to consider regarding their use.

Milk Progesterone Analysis for Determining Reproductive Status  - Another Penn State fact sheet covers the uses of milk progesterone analysis, evaluation of heat detection accuracy, determining pregnancy status, monitoring ovarian status, distributors of the tests and useful tips.
 
Crossbreeding.  Why the Interest?  What to Expect?  - Modern dairy cows are becoming increasingly inbred and this has an adverse effect on health and reproduction traits.  This paper by Les Hansen at the University of Minnesota contains some data illustrating advantages for crossbreeding in terms of reproductiove performance.
 
Bovine Rectal Palpation - you will still need to practice, practice, practice to get good but this introductory procedure should help you orient yourself.
 
The following articles are Chapters 11, 12, and 13 from the Dairy Essentials, an excellent publication from the Babcock Institute for International Dairy Research:
Reproduction and Nutrition
Body Condition Scores
Managing Productive Efficiency
 
From the University of Florida Reproduction Road Show

2004:

Reproductive data management with PCDART

Economic importance of improved reproductive performance

Managing the postpartum cow to maximize pregnancy rates

Trends in reproductive performance in dairy cows

2005:

Management of calving on large dairy farms


Produced by Peter Hansen and Amy Fischer-Brown
Created: February 10, 2005
Last updated:Wednesday March 12 2008
Funding: USDA Initiative for Future Agricultural and Food Systems
Program Grant # 2001-52101-11318
Visit IFAS Dairy Extension for more dairy information
University of Florida
Animal Sciences
PO Box 110910
Gainesville, Florida 32611
Phone: (352) 392-5590
Fax: (352) 392-5595