Proteins in bull semen have been found that increase fertility, including the fertility-associated antigen (FAA). The uses of FAA-positive bulls have been found in previous studies to increase conception rates at least 16%. Increased fertility rates by FAA-positive bulls increased the number of pregnant cows early in the breeding seasonUsing historical data to compute an equation that can demonstrate buyers and producers in the Southwestern United States the benefits of using and testing for FAA-positive bulls over time. The cost for addition of a cassette to the BSE testing will be offset by an increase in conception rate, birthing rate, and increase calf weaning weightsThis study focuses on the Southwestern United States, but eventually the information may be used nationwide. Fertility-associated antigen is a new science that is being studied to help the cattle industry increase production and profitability.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/203498 |
| Date | January 2011 |
| Creators | Skopp, Stacy |
| Contributors | Ax, Roy L., Allen, Ron E., McCauley, Tod C., Limesand, Sean |
| Publisher | The University of Arizona. |
| Source Sets | University of Arizona |
| Language | English |
| Detected Language | English |
| Type | text, Electronic Thesis |
| Rights | Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. |
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