Vol. 9, Special Issue 1 (2024)

Author(s): AS Rajput, MM Rafiq, S Chouksey, M Bhakat and TK Mohanty

Abstract: Estrus detection is a significant concern in dairy cattle operations because of the multivariate influences of genetics, environmental, social, and individual factors. The main issue to be considered on a priority basis is the identification of Estrus because inefficient Estrus detection reduces the fertility status of the herd and causes an economic burden. Researchers have explored various Estrus detection techniques and are still studying new methods to improve Estrus detection efficiency. The present review defines the alternate method for Estrus detection by using non-invasive infrared thermography (IRT). During the Estrus, temperature change is a significant phenomenon that is contributed by increased physical activity, and the thermogenic effect of progesterone (P4) secreted during the luteal phase contributed to the rise in body temperature. IRT shows significantly higher temperatures of different body points during Estrus compared to the non-Estrus period. The IRT offers higher sensitivity than visual observation and activity meter. Therefore, IRT can be used as a supportive tool along with visual observation for accurately identifying Estrus in different species.