Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Theses/Dissertations

California Polytechnic State University, San Luis Obispo

Dairy Science

Ovsynch

Publication Year

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Reproductive Analysis Of 100% Delayed 1st Service Ovsynch Breeding During Summer Months At A Large Central Valley Dairy, Micah John Degroot Mar 2013

Reproductive Analysis Of 100% Delayed 1st Service Ovsynch Breeding During Summer Months At A Large Central Valley Dairy, Micah John Degroot

Dairy Science

As the Dairy industry evolves year by year it is becoming ever more important to be reproductively efficient. The implementation of various timed artificial insemination (TAI) programs has become very common in order to maintain reproductive stability throughout the herd. This can be harder than ever with the increase of herd sizes and hot summer temperature in the central valley. The objective of this study compares two ovsynch breeding programs during summer months on a large central valley dairy. The change in protocol was a delayed 100% timed artificial insemination at approximately 70 dim for the 5-month period from June ...


Institution Of Presynch Protocol, Justin Breedyk Dec 2010

Institution Of Presynch Protocol, Justin Breedyk

Dairy Science

The objective of this study was to compare factors of reproductive efficiency between two separate ovulation synchronization programs, with one that includes presynchronization of all fresh cows and one that does not ovsynch cows until they have been found open after initial insemination. In recent years, reproductive efficiency has declined as other areas of the dairy business have continued to excel. The investigation was performed on two dairies in Hart, Texas, White River Ranch and VB Dairy. The dairies include herds of 5,000 and 3,000 milking cows, respectively. Data was retrieved using Dairy Comp 305 and covered a ...