Page Banner

United States Department of Agriculture

Agricultural Research Service

Related Topics

Research Project: IDENTIFY MECHANISMS BY WHICH OVULATORY FOLLICLE SIZE AFFECTS PREGNANCY ESTABLISHMENT AND MAINTENANCE IN BEEF COWS

Location: Range and Livestock Research

2012 Annual Report


1a. Objectives (from AD-416):
To improve our understanding of the mechanism(s) by which ovulatory follicle size affects pregnancy establishment and embryonic mortality.


1b. Approach (from AD-416):
ARS – A student from Conapec will visit the Fort Keogh Livestock and Range Research Laboratory (LARRL) and evaluate the effects of serum estradiol and ovulatory follicle size on embryo quality & morphology, and pregnancy establishment & maintenance in beef cows. Conapec – members will evaluate effects of exogenous estradiol cypionate, equine chorionic gonadotropin, and temporary calf removal on ovulatory follicle size, and establishment / maintenance of pregnancy in large beef herds in Brazil. Information will be mutually shared between involved parties.


3. Progress Report:
Progress on this project included preparation of 2 manuscripts that almost ready for submission. In addition, we are working to include another student from Brazil in the final two years of this project.


4. Accomplishments

Last Modified: 2/23/2016
Footer Content Back to Top of Page