Quantifiable and feasible estrus detection using the ultrasonic sensor array and digital infrared thermography

Area of Science:

• Animal Science
• Reproductive Biology
• Agricultural Technology

Background:

• Estrus detection is crucial for successful swine breeding.
• Integrating information and communication technology (ICT) in swine farming offers new possibilities.
• Traditional estrus detection methods can be subjective and labor-intensive.

Purpose of the Study:

• To evaluate the potential of standing time and vulva temperature for estrus detection in sows.
• To quantify changes in these parameters during estrus and non-estrus periods.
• To compare the success rates of new detection methods with existing ones for artificial insemination (AI).

Main Methods:

• Utilized ultrasonic sensor arrays to measure standing time and number.
• Employed digital infrared thermography to record vulva and skin temperature.
• Collected data from sows during both estrus and non-estrus phases.

Main Results:

• Sows in estrus exhibited significantly increased total standing time, standing bouts, and vulva temperature (p < 0.05).
• Estrus detection using standing time and vulva temperature showed a trend towards increased AI success rates (p = 0.06).

Conclusions:

• Standing time and vulva temperature are reliable indicators of estrus in sows.
• These ICT-based methods offer a quantifiable and potentially more accurate alternative to visual estrus detection.
• Implementing these new methods may enhance the efficiency and success of artificial insemination in swine production.