Related Experiment Video
Updated: Jul 16, 2025

In Vitro Culture Strategy for Oocytes from Early Antral Follicle in Cattle
Published on: July 8, 2020
Implementing Fixed-Time Artificial Insemination Programs in Beef Herds
Vitor R G Mercadante1, Graham Cliff Lamb2
1School of Animal Sciences, CALS and Large Animal Clinical Sciences, VAMD-CVM at Virginia Tech, 175 West Campus Drive, Blacksburg, VA 24061, USA.
Fixed-time artificial insemination (TAI) enhances beef cow-calf productivity and profitability by optimizing calving. Despite its benefits, TAI adoption in the US lags behind other sectors and countries.
Area of Science:
- Animal Science
- Reproductive Biotechnology
- Beef Cattle Production
Background:
- Reproductive biotechnologies are crucial for enhancing beef cow-calf operations.
- Fixed-time artificial insemination (TAI) offers significant advantages in productivity and profitability.
- US adoption of TAI in beef herds is notably slower than in dairy or internationally.
Purpose of the Study:
- To highlight the importance of TAI in beef cow-calf production.
- To explain the benefits of TAI, including improved productivity and profitability.
- To address the slow adoption rate of TAI among US beef producers.
Main Methods:
- Discussion of current TAI protocols for ovulation synchronization.
- Analysis of factors influencing TAI success in beef cattle.
- Comparative overview of TAI adoption rates.
Main Results:
- TAI shortens the breeding season and increases early-born calves.
- Earlier calving leads to heavier weaning weights and improved profitability.
- Current TAI protocols demonstrate effective ovulation synchronization and consistent pregnancy rates.
Conclusions:
- TAI is a valuable tool for improving beef cow-calf operations.
- Factors such as genetics, nutrition, and temperament influence TAI outcomes.
- Increased TAI adoption could significantly benefit the US beef industry.
More Related Videos
15:57Application of Long-term cultured Interferon-γ Enzyme-linked Immunospot Assay for Assessing Effector and Memory T Cell Responses in Cattle
Published on: July 11, 2015
11:02The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals
Published on: September 7, 2015